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You searched for: Subject air Remove constraint Subject: air Subject term Colombia Remove constraint Subject term: Colombia
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1. Air quality impact assessment of multiple open pit coal mines in northern Colombia

Author:
José I. Huertas; María E. Huertas; Sebastián Izquierdo; Enrique D. González
Source:
Journal of environmental management 2012 v.93 no.1 pp. 121-129
ISSN:
0301-4797
Subject:
air; air quality; business enterprises; coal; correlation; decontamination; dispersions; emissions; inventories; meteorological data; mining; models; particulates; pollution; villages; Colombia
Abstract:
... The coal mining region in northern Colombia is one of the largest open pit mining regions of the world. In 2009, there were 8 mining companies in operation with an approximate coal production of ∼70 Mtons/year. Since 2007, the Colombian air quality monitoring network has reported readings that exceed the daily and annual air quality standards for total suspended particulate (TSP) matter and partic ...
DOI:
10.1016/j.jenvman.2011.08.007
PubMed:
22054578

2. Air quality variations in Northern South America during the COVID-19 lockdown

Author:
Juan F. Mendez-Espinosa; Nestor Y. Rojas; Jorge Vargas; Jorge E. Pachón; Luis C. Belalcazar; Omar Ramírez
Source:
Science of the total environment 2020 v.749 pp. 141621
ISSN:
0048-9697
Subject:
COVID-19 infection; Severe acute respiratory syndrome coronavirus 2; air; air pollution; air quality; biomass; dust; environment; models; morbidity; mortality; risk; satellites; troposphere; China; Colombia; India
Abstract:
... Lockdown measures led to air pollution decrease in several countries around the world such as China and India, whereas other regions experimented an increase in pollutant concentrations. Northern South America (NSA) was one of those areas where pollution changed during lockdown due to high fire activity. This study aims to analyze, for the first time in NSA, the behavior of selected criteria air p ...
DOI:
10.1016/j.scitotenv.2020.141621

3. Analysis of Particulate Matter Concentration Intercepted by Trees of a Latin-American Megacity

Author:
Carlos Zafra-Mejía; Joaquín Suárez-López; Hugo Rondón-Quintana
Source:
Forests 2021 v.12 no.6 pp. -
ISSN:
1999-4907
Subject:
Callistemon citrinus; Ligustrum lucidum; Tecoma stans; air; air quality; cities; climate; ecosystems; leaf area; leaf morphology; leaves; particulates; trees; wind speed; Colombia
Abstract:
... Urban areas with trees provide several ecosystem services to citizens. There is a growing interest in ecosystem services for the removal of air pollutants such as particulate matter. The objective of this paper is to show a study on the variation of intercepted particulate matter concentration (IPMC) by tree leaves in the megacity of Bogotá (Colombia). The relationship between IPMC and PM₂.₅ conce ...
DOI:
10.3390/f12060723

4. Assessment and validation of wind power potential at convection-permitting resolution for the Caribbean region of Colombia

Author:
Samuel Andrés Gil Ruiz; Julio Eduardo Cañón Barriga; J. Alejandro Martínez
Source:
Energy 2022 v.244 pp. 123127
ISSN:
0360-5442
Subject:
Weibull statistics; air; coasts; energy; models; troposphere; wind; wind power; Caribbean; Colombia
Abstract:
... High-resolution wind power assessments, validated with ground data, are key for wind energy projects in regions of promising potential such as the Colombian Caribbean. This study assesses the annual wind power for this region at convection-permitting resolution, using the Weather Research and Forecasting (WRF) model with two nested domains (9 km and 3 km) and 50 vertical levels with 15 min outputs ...
DOI:
10.1016/j.energy.2022.123127

5. Assessment of the natural sources of particulate matter on the opencast mines air quality

Author:
J.I. Huertas; M.E. Huertas; G. Cervantes; J. Díaz
Source:
Science of the total environment 2014 v.493 pp. 1047-1055
ISSN:
0048-9697
Subject:
air; air pollution; air quality; coal; emissions; environmental impact; humidity; mining; models; monitoring; particulates; pollutants; regression analysis; temperature; variance; wind; Colombia
Abstract:
... Particulate matter is the main air pollutant in open pit mining areas. Preferred models that simulate the dispersion of the particles have been used to assess the environmental impact of the mining activities. Results obtained through simulation have been compared with the particle concentration measured in several sites and a coefficient of determination R2<0.78 has been reported. This result ind ...
DOI:
10.1016/j.scitotenv.2014.05.111

6. Atmospheric Concentrations of New Persistent Organic Pollutants and Emerging Chemicals of Concern in the Group of Latin America and Caribbean (GRULAC) Region

Author:
Cassandra Rauert; Tom Harner; Jasmin K. Schuster; Anita Eng; Gilberto Fillmann; Luisa Eugenia Castillo; Oscar Fentanes; Martín Villa Ibarra; Karina S. B. Miglioranza; Isabel Moreno Rivadeneira; Karla Pozo; Beatriz Helena Aristizábal Zuluaga
Source:
Environmental science & technology 2018 v.52 no.13 pp. 7240-7249
ISSN:
1520-5851
Subject:
air; esters; flame retardants; organophosphorus compounds; perfluoroalkyl acids; perfluorocarbons; persistent organic pollutants; pesticides; polybrominated diphenyl ethers; population density; siloxanes; sulfonates; Brazil; Caribbean; Colombia; Latin America
Abstract:
... A special initiative was run by the Global Atmospheric Passive Sampling (GAPS) Network to provide atmospheric data on a range of emerging chemicals of concern and candidate and new persistent organic pollutants in the Group of Latin America and Caribbean (GRULAC) region. Regional-scale data for a range of flame retardants (FRs) including polybrominated diphenyl ethers (PBDEs), organophosphate este ...
DOI:
10.1021/acs.est.8b00995

7. Characteristics and temporal variations of organic and elemental carbon aerosols in a high–altitude, tropical Latin American megacity

Author:
Omar Ramírez; A.M. Sánchez de la Campa; Jesús de la Rosa
Source:
Atmospheric research 2018 v.210 pp. 110-122
ISSN:
0169-8095
Subject:
El Nino; air; air quality; altitude; cities; climate change; forests; organic carbon; quartz; research; temporal variation; Andes region
Abstract:
... Bogota is a Latin American megacity located at an average altitude of 2600 m in the tropical Andes. It registers frequent episodes of poor air quality due to high PM₁₀ concentrations. The carbonaceous fraction is the main PM₁₀ component (>50%), but there is a lack of specific studies analyzing the characteristics and temporal variability of organic carbon (OC) and elemental carbon (EC) aerosols. I ...
DOI:
10.1016/j.atmosres.2018.04.006

8. Characterization of a multianalyte GC-MS/MS procedure for detecting and quantifying polycyclic aromatic hydrocarbons (PAHs) and PAH derivatives from air particulate matter for an improved risk assessment

Author:
Andrea Mueller; Nadin Ulrich; Josef Hollmann; Carmen E. Zapata Sanchez; Ulrike E. Rolle-Kampczyk; Martin von Bergen
Source:
Environmental pollution 2019 v.255 pp. 112967
ISSN:
0269-7491
Subject:
United States Environmental Protection Agency; air; benzo(a)pyrene; gas chromatography-mass spectrometry; molecular weight; neoplasms; particulates; polycyclic aromatic hydrocarbons; risk assessment; tandem mass spectrometry; toxicity; Colombia
Abstract:
... A correct description of the concentration and distribution of particle bound polycyclic aromatic hydrocarbons is important for risk assessment of atmospheric particulate matter. A new targeted GC-MS/MS method was developed for analyzing 64 PAHs including compounds with a molecular weight >300, as well as nitro-, methyl-, oxy- and hydroxyl derivatives in a single analysis. The instrumental LOD ran ...
DOI:
10.1016/j.envpol.2019.112967

9. Community-Based Importance and Quantification of Ecosystem Services, Disservices, Drivers, and Neotropical Dry Forests in a Rural Colombian Municipality

Author:
Yuli Paola Tovar Tique; Francisco J. Escobedo; Nicola Clerici
Source:
Forests 2021 v.12 no.7 pp. -
ISSN:
1999-4907
Subject:
Neotropics; air; decision making; ecosystems; food production; governance; issues and policy; land management; pollutants; stakeholders; Colombia
Abstract:
... Few studies analyze people’s preferences for ecosystem services (ES), disservices (ED) and drivers of change in less populated, tropical municipalities. Understanding such preferences and needs by the community and stakeholder groups before actually assessing, modelling, and measuring the supply of ES is key for decision-making and planning in municipalities, as well as for the conservation of nea ...
DOI:
10.3390/f12070919

10. Comprehensive Water Footprint of a University Campus in Colombia: Impact of Wastewater Treatment Modeling

Author:
Jose Luis Osorio-Tejada; Manuel Varón-Hoyos; Tito Morales-Pinzón
Source:
Water, air, and soil pollution 2022 v.233 no.5 pp. 174
ISSN:
0049-6979
Subject:
air; electric energy consumption; human health; infrastructure; soil pollution; wastewater treatment; water; water footprint; water management; water shortages; Colombia
Abstract:
... Protection of water resources implies the responsible consumption, and the return of this resource with the best physicochemical conditions. In organizations, water is consumed both directly in their facilities and indirectly in the products or services acquired for their operation, requiring a water accounting based on the life cycle perspective. This study aims to assess the comprehensive water ...
DOI:
10.1007/s11270-022-05644-3

11. Contaminated land in Colombia: A critical review of current status and future approach for the management of contaminated sites

Author:
Victor Andres Arias Espana; Alfonso R. Rodriguez Pinilla; Paul Bardos; Ravi Naidu
Source:
Science of the total environment 2018 v.618 pp. 199-209
ISSN:
0048-9697
Subject:
air; developed countries; funding; guidelines; human health; land management; land policy; polluted soils; pollution; remediation; risk; screening; water resources; Colombia; United Kingdom; United States
Abstract:
... Environmental contaminants can have negative effects on human health and land, air and water resources. Consequently, there have been significant advances in regulation for protecting the environment in developed countries including the development of remediation frameworks and guidelines. On the other hand, fewer studies have been reported on the risks and health effects of contaminants in develo ...
DOI:
10.1016/j.scitotenv.2017.10.245

12. Contribution of occult precipitation to the water balance of páramo ecosystems in the Colombian Andes

Author:
Maria Fernanda Cárdenas; Conrado Tobón; Wouter Buytaert
Source:
Hydrological processes 2017 v.31 no.24 pp. 4440-4449
ISSN:
0885-6087
Subject:
air; altitude; cooling; ecosystems; gauges; monitoring; rain; runoff; soil water; water supply; watersheds; Andes region; Colombia
Abstract:
... Páramos are high‐altitudinal neotropical ecosystems located in the upper regions of the northern Andes. Their hydrology is characterized by an extraordinarily high run‐off ratio. One major contributing mechanism is thought to be fog occurrence, which is common in the páramos and occurs by the cooling of near‐surface moist air, as it is forced to higher elevations by topography. However, field‐base ...
DOI:
10.1002/hyp.11374

13. Cytogenetic instability in populations with residential proximity to open-pit coal mine in Northern Colombia in relation to PM10 and PM2.5 levels

Author:
Lyda Espitia-Pérez; Juliana da Silva; Pedro Espitia-Pérez; Hugo Brango; Shirley Salcedo-Arteaga; Luz Stella Hoyos-Giraldo; Claudia T. de Souza; Johnny F. Dias; Dayana Agudelo-Castañeda; Ana Valdés Toscano; Miguel Gómez-Pérez; João A.P. Henriques
Source:
Ecotoxicology and environmental safety 2018 v.148 pp. 453-466
ISSN:
0147-6513
Subject:
DNA damage; adverse effects; air; aneuploidy; at-risk population; chromium; chromosome breakage; chromosome elimination; coal; copper; correlation; epidemiological studies; lymphocytes; mining; mutagens; neoplasms; organic matter; particulates; polar compounds; risk; silicon; sulfur; Colombia
Abstract:
... Epidemiological studies indicate that living in proximity to coal mines is correlated with numerous diseases including cancer, and that exposure to PM10 and PM2.5 components could be associated with this phenomenon. However, the understanding of the mechanisms by which PM exerts its adverse effects is still incomplete and comes mainly from studies in occupationally exposed populations. The aims of ...
DOI:
10.1016/j.ecoenv.2017.10.044

14. Degradation of Chrysanthemum (Dendranthema grandiflora) wastes by Pleurotus ostreatus for the production of reducing sugars

Author:
Balkys Quevedo-Hidalgo; Paulo César Narvaéz-Rincón; Aura Marina Pedroza-Rodríguez; Mario Enrique Velásquez-Lozano
Source:
Biotechnology and bioprocess engineering 2012 v.17 no.5 pp. 1103-1112
ISSN:
1226-8372
Subject:
Chrysanthemum morifolium; Coriolus versicolor; Phanerochaete chrysosporium; Pleurotus ostreatus; air; copper; endo-1,4-beta-glucanase; flowers; fungi; glucose; laccase; manganese; manganese peroxidase; pH; reducing sugars; wastes; Colombia
Abstract:
... In Colombia, a great amount of waste is generated during the cut-off and harvest stages in flowers culture. This study examines the possibility of degrading Chrysanthemum wastes by using Pleurotus ostreatus, Trametes versicolor, and Phanerochaete chrysosporium cultures; this has not been studied previously. The initial effect of fungi on the degradation of Chrysanthemum wastes were studied individ ...
DOI:
10.1007/s12257-012-0227-7

15. Direct liquefaction of vitrinite concentrates obtained by column flotation

Author:
Juan Barraza; Alexander Portilla; Jorge Piñeres
Source:
Fuel processing technology 2011 v.92 no.4 pp. 776-779
ISSN:
0378-3820
Subject:
air; coal; hydrogen; liquefaction; oils; pH; solvents; temperature; Colombia
Abstract:
... In this paper, direct liquefaction of vitrinite maceral concentrates was studied. Coals from Cerrejon and Jagua collieries (Colombia, South America) were used. Vitrinite concentrates were obtained by column flotation at pH 7, air velocity of 1.4cm/s and frother concentration of 4ml of frother/kg of coal. Digestion runs were made at 380, 400 and 420°C and ratios tetraline/coal (S/C) of 2/1, 2.5/1 a ...
DOI:
10.1016/j.fuproc.2010.09.034

16. Dynamic Cloud Regimes, Incident Sunlight, and Leaf Temperatures in Espeletia grandiflora and Chusquea tessellata, Two Representative Species of the Andean Páramo, Colombia

Author:
Adriana Sanchez; Juan M. Posada; William K. Smith
Source:
Arctic, antarctic, and alpine research 2014 v.46 no.2 pp. 371-378
ISSN:
1938-4246
Subject:
Chusquea; air; cloud cover; ecophysiology; global warming; leaves; national parks; photons; photosynthesis; prediction; solar radiation; temperature; Andes region; Colombia
Abstract:
... The alpine páramo of Chingaza National Park, Colombia, has a highly variable cloud regime typical of many tropical alpine areas. Yet, little information is available regarding the effects of such dynamic sunlight regimes on alpine temperatures. A close association between changes in incident sunlight and corresponding air (T ₐ) and leaf (T ₗ) temperatures occurred in two dominant species with stro ...
DOI:
10.1657/1938-4246-46.2.371

17. Early successional dynamics of ground beetles (Coleoptera, Carabidae) in the tropical dry forest ecosystem in Colombia

Author:
Gloria Maria Ariza; Jorge Jácome; Héctor Eduardo Esquivel; D. Johan Kotze
Source:
ZooKeys 2021 v.1044 pp. 877-906
ISSN:
1313-2970
Subject:
Calosoma; El Nino; air; canopy; forest ecosystems; habitats; pastures; tropical dry forests; wet season; Colombia
Abstract:
... Little is known about the successional dynamics of insects in the highly threatened tropical dry forest (TDF) ecosystem. For the first time, we studied the response of carabid beetles to vegetal succession and seasonality in this ecosystem in Colombia. Carabid beetles were collected from three TDF habitat types in two regions in Colombia: initial successional state (pasture), early succession, and ...
DOI:
10.3897/zookeys.1044.59475

18. Effect of physical, chemical and environmental characteristics on arbuscular mycorrhizal fungi in Brachiaria decumbens (Stapf) pastures

Author:
Posada, R.H.; Franco, L.A.; Ramos, C.; Plazas, L.S.; Suárez, J.C.; Álvarez, F.
Source:
Journal of applied microbiology 2008 v.104 no.1 pp. 132-140
ISSN:
1364-5072
Subject:
Urochloa decumbens; air; altitude; atmospheric pressure; edaphic factors; grasses; humidity; hyphae; inoculum; mycorrhizal fungi; organic matter; pastures; phosphorus; roots; soil physical properties; spores; temperature
Abstract:
... To evaluate the effects of soil physical and chemical factors (pH, conductivity, humidity, available phosphorus and organic matter) and environmental factors (temperature, relative air humidity, altitude and atmospheric pressure) on arbuscular mycorrhizal fungi (AMF)-Brachiaria decumbens grass relationship. Furthermore to establish patterns of microbiological responses that allow to differentiate ...
DOI:
10.1111/j.1365-2672.2007.03533.x
PubMed:
17850319

19. Effect of strains of the genus Enterobacter sp. Trichoderma koningiopsis in yield of Lactuca sativa Var L. crispa L.

Author:
Jeniffer N. Otálora; Diana B. Sánchez; Julio R. Galindo
Source:
Temas Agrarios 2016 v.21 no.1 pp. 77-89
ISSN:
2389-9182
Subject:
Enterobacter; Lactuca sativa; Sclerotinia; Trichoderma; active ingredients; air; chemical control; lettuce; phosphorus; plant growth; procymidone; seedbeds; Colombia
Abstract:
... Lettuce (Lactuca sativa L. Var L. crispa L.) is one of the most cultivated vegetables in the town of Mosquera, Cundinamarca Colombia. In this research two biological products (Enterobacter sp., TVL-1 and TVL-2) were evaluated with the capacity to supply the needs of phosphorus plant and a biological product (Trichoderma koningiopsis TH003) with the ability to control Sclerotinia sp., these were co ...
DOI:
https://doi.org/10.21897/rta.v21i1.893

20. Electrotransformation of Lactobacillus manihotovorans LMG 18010T and LMG 18011

Author:
Rodriguez Sanoja, R.; Morlon-Guyot, J.; Guyot, J.P.
Source:
Journal of applied microbiology 1999 v.87 no.1 pp. 99-107
ISSN:
1364-5072
Subject:
Lactobacillus manihotivorans; aeration; air; cassava; culture media; electroporation; fermentation; genetic transformation; peptones; plasmid curing; plasmids; polysorbates; starch; Colombia
Abstract:
... An electroporation procedure was developed for the genetic transformation of intact cells of Lactobacillus manihotivorans, a new Lactobacillus species isolated from cassava sour starch fermentation in Colombia. Transformation efficiency of Lact. manihotivorans strains LMG 18010(T) and LMG 18011 was measured and compared with electroporability of Lact. plantarum strains NCIMB 8299 and LMG 9211, by ...
DOI:
10.1046/j.1365-2672.1999.00800.x

21. Emptying Operation of Water Supply Networks

Author:
Oscar E. Coronado-Hernández; Vicente S. Fuertes-Miquel; Fredy N. Angulo-Hernández
Source:
Water 2017 v.10 no.1 pp. -
ISSN:
2073-4441
Subject:
air; pipelines; pipes; risk; simulation models; thermodynamics; water supply; Colombia
Abstract:
... Recently, emptying processes have been studied in experimental facilities in pipelines, but there is a lack regarding applications in actual pipelines, which permits establishing the risk of collapse because of sub-atmospheric pressure occurrence. This research presents a mathematical model to simulate the emptying process of water supply networks, and the application to a water emptying pipeline ...
DOI:
10.3390/w10010022

22. Essential oils from plants of the genus Cymbopogon as natural insecticides to control stored product pests

Author:
Ricardo Hernandez-Lambraño; Nerlis Pajaro-Castro; Karina Caballero-Gallardo; Elena Stashenko; Jesus Olivero-Verbel
Source:
Journal of stored products research 2015 v.62 pp. 81-83
ISSN:
0022-474X
Subject:
Cymbopogon martinii; Cymbopogon nardus; Oryzaephilus surinamensis; Sitophilus zeamais; adults; air; essential oils; fumigants; insecticides; lethal concentration 50; oils; repellents; risk reduction; storage pests; stored grain; toxicity
Abstract:
... The repellent and fumigant activities of essential oils (EOs) isolated from plants of the Cymbopogon genus against adults of Oryzaephilus surinamensis (L.) and Sitophilus zeamais Motsch were investigated. Cymbopogon martinii was the most toxic EO with LC50 values of 37.2 and 159 μL/L air for O. surinamensis and S. zeamais, respectively. Cymbopogon nardus EO showed greatest repellent activity with ...
DOI:
10.1016/j.jspr.2015.04.004

23. Estimation of effective dose from pediatric radiography of the chest in medellin-colombia

Author:
William Jaramillo-Garzon; Javier de Jesús Morales-Aramburo; Jorge Anselmo Puerta-Ortiz
Source:
Revista de la Facultad de Ciencias 2015 v.4 no.1 pp. 11-16
ISSN:
2357-5549
Subject:
X-radiation; air; chest; computer software; hospitals; radiography; Colombia
Abstract:
... The International Commission on Radiological Protection (ICRP) asserted that the use of effective dose is actually not recommended for assessing the risks of stochastic effects in retrospective situations for exposures in patients, however this quantity can be of value for comparing the use of similar technologies and procedures in different hospitals and countries as well as the use of different ...
DOI:
10.15446/rev.fac.cienc.v4n1.50759

24. Estimation of industrial emissions in a Latin American megacity under power matrix scenarios projected to the year 2050 implementing the LEAP model

Author:
Karen Daniela Hernández; Oscar Arnulfo Fajardo
Source:
Journal of cleaner production 2021 v.303 pp. 126921
ISSN:
0959-6526
Subject:
air; air quality; carbon; carbon dioxide; cities; computer software; econometric models; economic analysis; electric power; energy; greenhouses; industrialization; Colombia
Abstract:
... The current global economic model of industrialization has historically searched for indefinite growth without considering environmental impacts. Dependence on fossil fuels has caused degradation of the global air quality and greenhouse gases (GHG) emissions increase. Colombia and specifically Bogotá is no exception to this problem, which is causing increasing concern about the negative impacts on ...
DOI:
10.1016/j.jclepro.2021.126921

25. Evaluating the impact of PM2.5 atmospheric pollution on population mortality in an urbanized valley in the American tropics

Author:
David Aguiar-Gil; Luisa M. Gómez-Peláez; Tatiana Álvarez-Jaramillo; Mauricio A. Correa-Ochoa; Julio C. Saldarriaga-Molina
Source:
Atmospheric environment 2020 v.224 pp. 117343
ISSN:
1352-2310
Subject:
adults; air; air pollution; air quality; atmospheric chemistry; children; computer simulation; computer software; death; emissions; infant mortality; metropolitan areas; monitoring; myocardial ischemia; particulates; pollutants; tropics; urban population; urbanization; vehicles (equipment)
Abstract:
... There is enough scientific evidence indicating a relationship between particulate matter in ambient air and health. Since at a global scale there is an important number of people exposed to this pollutant, studies have focused on evaluating its possible effects on human population. Aburrá Valley Metropolitan Area (AMVA), in Antioquia-Colombia, is a region with about 3,909,729 inhabitants (2018), w ...
DOI:
10.1016/j.atmosenv.2020.117343

26. Evaluation of air pollution tolerance index and anticipated performance index of six plant species, in an urban tropical valley: Medellin, Colombia

Author:
Mauricio Correa-Ochoa; Juliana Mejia-Sepulveda; Julio Saldarriaga-Molina; Camilo Castro-Jiménez; David Aguiar-Gil
Source:
Environmental science and pollution research 2022 v.29 no.5 pp. 7952-7971
ISSN:
0944-1344
Subject:
Erythrina fusca; Fraxinus uhdei; Jacaranda mimosifolia; Mangifera indica; Spathodea campanulata; Tabebuia; air; air pollution; air quality; environmental monitoring; human health; pollutants; research; trees; Colombia
Abstract:
... High atmospheric pollution levels in urban areas have become a global problem that threatens both human health and urban ecosystems. Trees that grow near areas with vehicular and industrial emissions can be highly affected, since they constitute the main barrier for emitted pollutants, with trees being either tolerant or sensitive to them. Different methodologies worldwide have been implemented to ...
DOI:
10.1007/s11356-021-16037-0

27. Evaluation of anthropogenic air pollutant emission inventories for South America at national and city scale

Author:
Nicolas Huneeus; Hugo Denier van der Gon; Paula Castesana; Camilo Menares; Claire Granier; Louise Granier; Marcelo Alonso; Maria de Fatima Andrade; Laura Dawidowski; Laura Gallardo; Dario Gomez; Zbigniew Klimont; Greet Janssens-Maenhout; Mauricio Osses; S. Enrique Puliafito; Nestor Rojas; Odón Sánchez- Ccoyllo; Sebastián Tolvett; Rita Yuri Ynoue
Source:
Atmospheric environment 2020 v.235 pp. 117606
ISSN:
1352-2310
Subject:
air; air pollutants; air quality; atmospheric chemistry; climate change; cost effectiveness; environment; greenhouses; humans; models; Argentina; Brazil; Chile; Colombia; Peru
Abstract:
... The changing composition of the atmosphere, driven by anthropogenic emissions, is the cause of anthropogenic climate change as well as deteriorating air quality. Emission inventories are essential to understand the contribution of various human activities, model and predict the changing atmospheric composition, and design cost-effective mitigation measures. At present, national emission inventorie ...
DOI:
10.1016/j.atmosenv.2020.117606

28. Evaluation of the Microclimate in a Traditional Colombian Greenhouse Used for Cut Flower Production

Author:
Edwin Villagrán; Jorge Flores-Velazquez; Carlos Bojacá; Mohammad Akrami
Source:
Agronomy 2021 v.11 no.7 pp. -
ISSN:
2073-4395
Subject:
agronomy; air; air flow; cultivation area; cut flowers; exports; floriculture; flowers; greenhouses; hydrodynamics; mathematical models; microclimate; savannas; temperature; wind speed; Colombia
Abstract:
... Cut flower production in the Bogotá savanna is one of Colombia’s main export products. Flower production is mainly carried out in greenhouses, as this type of production system has substantial advantages over crops grown in open fields. Protected agriculture provides timely climate management that improves crop yields. The objective of this work was to build and validate a 3D CFD numerical model t ...
DOI:
10.3390/agronomy11071330

29. Evapotranspiration and crop coefficients for coffee production systems in Colombia using the eddy covariance method

Author:
Angela M. Castaño‐Marín; Néstor M. Riaño‐Herrera; Gerardo A. Góez‐Vinasco; Juan C. García‐López; Apolinar Figueroa‐Casas
Source:
Agronomy journal 2022 v.114 no.1 pp. 678-688
ISSN:
0002-1962
Subject:
Coffea arabica; Zea mays; agronomy; air; corn; crop coefficient; eddy covariance; energy; evapotranspiration; latent heat flux; microclimate; plant available water; sensible heat flux; Colombia
Abstract:
... To optimize coffee (Coffea arabica L.) production in Colombia, adaptation strategies that improve water use must be developed. Therefore, the objective of this study was to determine evapotranspiration under standard conditions (ETc), reference evapotranspiration (ETₒ), and the crop coefficient (Kc) of coffee plants interplanted between maize (Zea mays L.) (coffee–maize) for the first 12 mo of gro ...
DOI:
10.1002/agj2.20960

30. Exposure levels to PM2.5 and black carbon for people with disabilities in rural homes of Colombia

Author:
Leonel Alexander Martínez Vallejo; Mario Andrés Hernández Pardo; John Alexander Benavides Piracón; Luis Carlos Belalcázar Cerón; Nancy Jeanet Molina Achury
Source:
Environmental monitoring and assessment 2021 v.193 no.1 pp. 37
ISSN:
0167-6369
Subject:
World Health Organization; air; carbon; fuelwood; population density; rural areas; traffic; urban areas; Colombia
Abstract:
... Indoor exposure to air pollutants emitted by solid fuels used for cooking or heating homes remains as a problem to solve. The most affected people are newborns, mothers, children, and people with disabilities, due to the time they spend at home. This study is the first in a rural area of South America, which measures indoor air pollutants (PM₂.₅ and black carbon) in different environments, inhabit ...
DOI:
10.1007/s10661-020-08803-3

31. Identification and characterization of laccase-type multicopper oxidases involved in dye-decolorization by the fungus Leptosphaerulina sp.

Author:
Ledys S. Copete; Xiomara Chanagá; Jorge Barriuso; María F. López-Lucendo; María J. Martínez; Susana Camarero
Source:
BMC biotechnology 2015 v.15 no.1 pp. 74
ISSN:
1472-6750
Subject:
DNA; Leptosphaerulina; air; biocatalysts; catalytic activity; decolorization; dyes; enzyme activity; genes; genomics; laccase; lignocellulose; oxygen; phylogeny; proteomics; white-rot fungi; Colombia
Abstract:
... BACKGROUND: Fungal laccases are multicopper oxidases (MCOs) with high biotechnological potential due to their capability to oxidize a wide range of aromatic contaminants using oxygen from the air. Albeit the numerous laccase-like genes described in ascomycete fungi, ascomycete laccases have been less thoroughly studied than white-rot basidiomycetous laccases. A variety of MCO genes has recently be ...
DOI:
10.1186/s12896-015-0192-2
PubMed:
26268358
PubMed Central:
PMC4535763

32. Instantaneous global horizontal irradiance and clearness index data with high temporal resolution for 1016 days

Author:
Alberto Avila; Rafael Diez
Source:
Data in Brief 2022 v.44 pp. 108504
ISSN:
2352-3409
Subject:
air; electronics; light intensity; pyranometers; solar radiation; statistics; Colombia
Abstract:
... Global Horizontal Irradiance was measured using a thermopile-type pyranometer during more than three years using a sample time of two seconds, with the purpose of capturing fast transient events of irradiance which are notable in tropical regions as the one where these data were collected: Bogotá, Colombia. The date and time of each measurement were registered along with the irradiance values. In ...
DOI:
10.1016/j.dib.2022.108504

33. Interplay of seasonal sunlight, air and leaf temperature in two alpine páramo species, Colombian Andes

Author:
Adriana Sanchez; A. Camilo Rey-Sánchez; Juan M. Posada; William K. Smith
Source:
Agricultural and forest meteorology 2018 v.253-254 pp. 38-47
ISSN:
0168-1923
Subject:
Chusquea; air; alpine plants; canopy; carbon; climate change; dry season; ecosystems; energy balance; equations; gas exchange; leaves; models; photosynthesis; solar radiation; structural equation modeling; temperature; Andes region; Colombia
Abstract:
... In models of photosynthetic gas exchange, leaf temperature (Tₗₑₐf) is often calculated using a combination of derivations of the energy balance equation and measurements of air temperature (Tₐᵢᵣ). Yet, there are frequently large differences between Tₗₑₐf and Tₐᵢᵣ under natural field conditions, and an energy balance is complicated in complex canopies, especially in tropical ecosystems. In the pres ...
DOI:
10.1016/j.agrformet.2018.01.033

34. Living in the Extremes: The Thermal Ecology of Communal Nests of the Highland Andean Lizard Anadia bogotensis (Squamata: Gymnophthalmidae)

Author:
Martha L. Calderón-Espinosa; Adriana Jerez; Guido F. Medina-Rangel
Source:
Current herpetology 2018 v.37 no.2 pp. 158-171
ISSN:
1881-1019
Subject:
Squamata; air; air temperature; climate change; ecological value; ecology; eggs; highlands; humidity; hydrology; lizards; nesting; ontogeny; soil; tropics; variance; Colombia
Abstract:
... Nesting in tropical highlands is challenging due to the fluctuations of temperature, including extreme cold, and humidity. For most reptiles in the highland tropical region the thermal and hydrological profiles of nests have not been described, and it is therefore uncertain how future climate change may affect this ontogenetic stage. We monitored 17 communal nests of Anadia bogotensis at a highlan ...
DOI:
10.5358/hsj.37.158

35. Mapping Potential Toxic Elements in Agricultural and Natural Soils of the Piedemonte Llanero in Colombia

Author:
Juan Manuel Trujillo-González; Marco Aurelio Torres-Mora; Marlon Serrano-Gómez; Edgar Fernando Castillo-Monroy; Raimundo Jiménez Ballesta; Jesús Rodrigo-Comino
Source:
Water, air, and soil pollution 2022 v.233 no.4 pp. 102
ISSN:
0049-6979
Subject:
air; geostatistics; kriging; land degradation; land management; soil pollution; stakeholders; toxicity; water; wet digestion method; Colombia
Abstract:
... The accumulation of potential toxic elements (PTEs) in soils is usually conditioned by parental material or anthropogenic sources. To achieve correct land management and land degradation neutrality, it is necessary to spatially detect them. However, there are several areas over the world with high concentrations of PTE but without efficient maps and tools to correctly find solutions and apply cont ...
DOI:
10.1007/s11270-022-05550-8

36. Mercury Concentrations in Water, Sediments, Soil, and Fish Around Ancestral Afro-Descendant Territories Impacted by Gold Mining in the Cauca Department, Colombia

Author:
Karina Caballero-Gallardo; Jenny Palomares-Bolaños; Jesus Olivero-Verbel
Source:
Water, air, and soil pollution 2022 v.233 no.9 pp. 393
ISSN:
0049-6979
Subject:
Prochilodus magdalenae; Pseudopimelodus; air; basins; environmental exposure; fish; fish consumption; humans; mercury; remediation; risk; risk assessment; rivers; soil; soil pollution; toxicity; water; watersheds; Colombia
Abstract:
... Although mercury (Hg) is ubiquitously present in natural ecosystems, human activities have promoted its accumulation and toxicity in the environment. The aim of this study was to assess the concentrations of total Hg (T-Hg) in different environmental matrices from two territories of Afro-descendant communities: Aires of Garrapatero (CCAG) and Cauca River Basin, Micro Basin of the Teta and Mazamorr ...
DOI:
10.1007/s11270-022-05779-3

37. Mercury contamination from artisanal gold mining in Antioquia, Colombia: The world's highest per capita mercury pollution

Author:
Paul Cordy; Marcello M. Veiga; Ibrahim Salih; Sari Al-Saadi; Stephanie Console; Oseas Garcia; Luis Alberto Mesa; Patricio C. Velásquez-López; Monika Roeser
Source:
Science of the total environment 2011 v.410-411 no. pp. 154-160
ISSN:
0048-9697
Subject:
gold; emissions; mining; traditional technology; mercury; business enterprises; interviews; residential areas; urban areas; air; burning; rural areas; cities; towns; World Health Organization; filters; developed countries; Colombia
Abstract:
... The artisanal gold mining sector in Colombia has 200,000 miners officially producing 30tonnes Au/a. In the Northeast of the Department of Antioquia, there are 17 mining towns and between 15,000 and 30,000 artisanal gold miners. Guerrillas and paramilitary activities in the rural areas of Antioquia pushed miners to bring their gold ores to the towns to be processed in Processing Centers or entables ...
DOI:
10.1016/j.scitotenv.2011.09.006
PubMed:
22000915

38. Mercury pollution by gold mining in a global biodiversity hotspot, the Choco biogeographic region, Colombia

Author:
Yuber Palacios-Torres; Karina Caballero-Gallardo; Jesus Olivero-Verbel
Source:
Chemosphere 2018 v.193 pp. 421-430
ISSN:
0045-6535
Subject:
Ageneiosus; Cyphocharax; Hoplias malabaricus; Pseudopimelodus; Rhamdia quelen; Sternopygus; World Health Organization; air; biodiversity; biogeography; ecosystems; fish; fish consumption; gold; human health; humans; ingestion; mercury; mining; pollutants; risk; rivers; sediments; Colombia
Abstract:
... Mercury (Hg) is a harmful pollutant released into the environment from gold mining activities, representing a risk to human health and the ecosystems. The aim of this study was to assess the levels of total Hg (T-Hg) in human hair, fish, sediments and air; and to determine fish consumption-based risks for T-Hg ingestion in the Choco biogeographic region, a global biodiversity hotspot located at th ...
DOI:
10.1016/j.chemosphere.2017.10.160

39. A Methodological Approach to Mapping Acid Sulfate Soils, the Spatial Variability of Acidity and Salinity, and Hazards at the Field Scale in a Sector of the Sinú River Floodplain, Colombia

Author:
Zoraya Martínez L; Doris Mejía A; Viviana Soto B
Source:
Water, air, and soil pollution 2022 v.233 no.6 pp. 217
ISSN:
0049-6979
Subject:
acid sulfate soils; acidification; acidity; air; electrical conductivity; environmental management; factor analysis; floodplains; geographic information systems; geostatistics; kriging; models; prediction; redox potential; rivers; salinity; soil pollution; sulfates; water; Colombia
Abstract:
... There is currently no comprehensive acid sulfate soil (ASS) hazard mapping in Colombia. This study aims to create reliable prediction surfaces to estimate the types and subtypes of inland ASS, spatial variability of acidity and salinity, and acidification and salinization hazards. We used a combination of factor analysis, geostatistical tools with ordinary and indicator kriging, and Geographic Inf ...
DOI:
10.1007/s11270-022-05658-x

40. Missing Data Estimation in a Low-Cost Sensor Network for Measuring Air Quality: a Case Study in Aburrá Valley

Author:
León M. Rivera-Muñoz; Juan D. Gallego-Villada; Andrés F. Giraldo-Forero; Juan D. Martinez-Vargas
Source:
Water, air, and soil pollution 2021 v.232 no.10 pp. 436
ISSN:
0049-6979
Subject:
World Health Organization; air; air pollution; air quality; case studies; data quality; death; particulates; prediction; soil pollution; water; Colombia
Abstract:
... According to the World Health Organization (WHO), air pollution is currently one leading cause of death around the world. As a result, some projects have emerged to monitor air quality through the implementation of low-cost Wireless Sensor Networks (WSNs). However, the type of technology and the sensors’ location have an impact on data quality, resulting in a considerable amount of missing data. T ...
DOI:
10.1007/s11270-021-05363-1

41. Modeling the suitability of the traditional plastic greenhouse for tomato production across Colombian regions

Author:
D. C. Diaz; C. R. Bojaca; E. Schrevens
Source:
Acta horticulturae 2018 v. no.1205 pp. 857-864
ISSN:
0567-7572
Subject:
air; air temperature; altitude; climate models; climatic factors; cold; crop production; dry season; greenhouse effect; heating systems; meteorological data; natural ventilation; plastic greenhouses; prediction; rain; relative humidity; soil temperature; thermal properties; tomatoes; weather stations; wind speed; Colombia
Abstract:
... Greenhouse tomato production in Colombia has increased at a rate of 250 t 
year-1 in the last decade, but yield has remained constant around 106 t ha-1 year-1. The main reasons for this trend is that greenhouses used for tomato cropping are still vulnerable to the high seasonal and intraseasonal climate variability in the Equatorial Zone. To obtain information about the relation between outdoor an ...
DOI:
10.17660/ActaHortic.2018.1205.109

42. Modelling the environmental impact of pesticides sprayed on greenhouse tomatoes: a regional case study in Colombia

Author:
Bojacá, C.R.; Gil, R.; Casilimas, H.; Arias, L.A.; Schrevens, E.
Source:
Acta horticulturae 2012 no.957 pp. -
ISSN:
0567-7572
Subject:
air; case studies; chemical control; environmental fate; environmental impact; environmental models; fertilizers; greenhouses; growers; interviews; life cycle assessment; manufacturing; pesticides; production technology; research institutions; tomatoes; topsoil; Colombia
Abstract:
... In many horticultural areas, the pest management in bio-physically limited and technically constrained production systems is reduced to a chemical control strategy. The environmental impact and fate of pesticides and fertilizers is becoming a matter of growing concern among research organizations and governmental institutions in countries such as Colombia. The objective of the present work was to ...

43. Multicompartment Mercury Contamination in Major Gold Mining Districts at the Department of Bolivar, Colombia

Author:
Liliana Carranza-Lopez; Karina Caballero-Gallardo; Leonor Cervantes-Ceballos; Alexi Turizo-Tapia; Jesus Olivero-Verbel
Source:
Archives of environmental contamination and toxicology 2019 v.76 no.4 pp. 640-649
ISSN:
0090-4341
Subject:
Plagioscion; Pseudoplatystoma; Trachelyopterus; United States Environmental Protection Agency; air; burning; fish; fish consumption; gold; guidelines; hairs; health effects assessments; human health; humans; mercury; mining; pollution; soil; traditional technology; Colombia
Abstract:
... Artisanal and small-scale gold mining is the main source of human exposure to mercury (Hg) in many countries. This study was designed to evaluate total Hg (T-Hg) concentrations in human hair, fish, soil, and air from two major gold-mining districts (GMDs) at the department of Bolivar, Colombia. Total Hg was analyzed using a direct Hg analyzer. The mean T-Hg concentration in hair samples was 3.07 ± ...
DOI:
10.1007/s00244-019-00609-w

44. NO and NOy in the upper troposphere: Nine years of CARIBIC measurements onboard a passenger aircraft

Author:
G. Stratmann; H. Ziereis; P. Stock; C.A.M. Brenninkmeijer; A. Zahn; A. Rauthe-Schöch; P.V. Velthoven; H. Schlager; A. Volz-Thomas
Source:
Atmospheric environment 2016 v.133 pp. 93-111
ISSN:
1352-2310
Subject:
air; aircraft; airports; atmospheric chemistry; data collection; emissions; latitude; mixing; nitric oxide; seasonal variation; summer; troposphere; winter; Argentina; Brazil; Canada; Chile; China; Colombia; Germany; India; Japan; Philippines; South Africa; South Korea; Thailand; United States; Venezuela
Abstract:
... Nitrogen oxide (NO and NOy) measurements were performed onboard an in-service aircraft within the framework of CARIBIC (Civil Aircraft for the Regular Investigation of the atmosphere Based on an Instrument Container). A total of 330 flights were completed from May 2005 through April 2013 between Frankfurt/Germany and destination airports in Canada, the USA, Brazil, Venezuela, Chile, Argentina, Col ...
DOI:
10.1016/j.atmosenv.2016.02.035

45. Native herbaceous plant species with potential use in phytoremediation of heavy metals, spotlight on wetlands — A review

Author:
Mayerly Alexandra Oyuela Leguizamo; Wilmar Darío Fernández Gómez; Martha Cecilia Gutiérrez Sarmiento
Source:
Chemosphere 2017 v.168 pp. 1230-1247
ISSN:
0045-6535
Subject:
air; animals; decontamination; ecosystems; heavy metals; herbaceous plants; human health; hyperaccumulators; indigenous species; introduced species; phytoremediation; soil; solubility; surveys; water pollution; wetlands; Colombia
Abstract:
... Soil, air and water pollution caused by the mobility and solubility of heavy metals significantly damages the environment, human health, plants and animals. One common in situ method used for the decontamination of heavy metals is phytoremediation. This usually involves the use of exotic species. However, these species may exhibit invasive behavior, thereby, affect the environmental and ecological ...
DOI:
10.1016/j.chemosphere.2016.10.075

46. New cases of pathogens imported with ornamental fish

Author:
Ewa Sobecka; Ewa Łuczak; Michał Marcinkiewicz
Source:
Biological letters 2013 v.49 no.1 pp. 3-10
ISSN:
1734-7467
Subject:
Entamoeba; Eustrongylides; Hexamita; Ichthyophonus; Myxobolus; Nannostomus; Symphysodon aequifasciatus; Symphysodon discus; air; breeding; death; farmed fish; financial economics; fish culture; habitats; hosts; hybrids; new host records; ornamental fish; parasites; pathogens; trade; watersheds; Amazon River; Colombia; Poland; Thailand
Abstract:
... The global trade in live ornamental fish carries with it the potential threat of unwanted movement of pathogens. The live ornamental fish, when released into the natural environment of their destination countries, may disseminate their parasites, threatening local fish and causing economic loss in fish aquaculture. This study was aimed to explain the reasons for deterioration of health and prematu ...
DOI:
10.2478/v10120-012-0001-8

47. Numerical and experimental methodology to measure the thermal efficiency of pots on electrical stoves

Author:
Francisco J. Cadavid; Yonatan Cadavid; Andrés A. Amell; Andrés E. Arrieta; Juan D. Echavarría
Source:
Energy 2014 v.73 pp. 258-263
ISSN:
0360-5442
Subject:
air; convection; electrical resistance; energy; geometry; heaters; insulating materials; mathematical models; resistors; Colombia
Abstract:
... In this paper, we present a methodology for calculating the thermal efficiency of a pot on an electric stove using numerical simulations in ANSYS FLUENT®. The system domain was divided into three subsystems: electrical resistors, the air volume inside the resistors, and the pot. It was determined that the heat transfer to the pot was mainly caused by conduction between the heating element and the ...
DOI:
10.1016/j.energy.2014.06.017

48. Observational Insights on the Effects of Land Use and Precipitation Seasonality on Water-driven Circulation of Phosphorus in the Tropical Andes

Author:
Diego Suescún; Juan Camilo Villegas; Juan Diego León; Guillermo A. Correa-Londoño
Source:
Water, air, and soil pollution 2021 v.232 no.6 pp. 250
ISSN:
0049-6979
Subject:
absorption; agroecosystems; air; canopy; case studies; climate; deforestation; hydrologic cycle; land cover; land use; phosphates; phosphorus; plant nutrition; rain; runoff; soil; soil pollution; Andes region; Colombia
Abstract:
... In tropical montane ecosystems, forest conversion into agricultural uses, combined with changes in climate can alter ecosystem hydrological and biogeochemical processes in multiple ways. A deeper understating of the interactions and couplings between land use/land cover, ecohydrological, and biogeochemical processes is needed to identify and evaluate the potential impacts of a changing environment ...
DOI:
10.1007/s11270-021-05195-z

49. Occurrence and distribution of persistent organic pollutants (POPs) in the atmosphere of the Andean city of Medellin, Colombia

Author:
Boris Santiago Avila; Diana Pemberthy Mendoza; Andrés Ramírez; Gustavo A. Peñuela
Source:
Chemosphere 2022 v.307 pp. 135648
ISSN:
0045-6535
Subject:
air; biphenyl; bromination; hexabromocyclododecane; monitoring; polychlorinated biphenyls; polychlorinated dibenzodioxins; polychlorinated dibenzofurans; Andes region; Colombia
Abstract:
... Passive air sampling (PAS) was used to evaluate organochlorine pesticides, polychlorinated biphenyls, polybrominated diphenyl ethers, polybrominated biphenyl, hexabromocyclododecane, polychlorinated dibenzo-p-dioxins, polychlorinated dibenzofurans, and perfluoroalkane substances in the atmosphere of Medellin, Colombia. PAS was carried out for three months (four quarters per year) over two consecut ...
DOI:
10.1016/j.chemosphere.2022.135648

50. On the volatilisation and decomposition of cyanide contaminations from gold mining

Author:
Andreas Brüger; Günter Fafilek; Oscar J. Restrepo B.; Lucas Rojas-Mendoza
Source:
Science of the total environment 2018 v.627 pp. 1167-1173
ISSN:
0048-9697
Subject:
absorption; air; gold; hydrogen cyanide; laboratory experimentation; leaching; mercury; mine tailings; mining; oxidation; oxygen; photolysis; solar radiation; streams; surface water; traditional technology; ultraviolet radiation; volatilization; Colombia
Abstract:
... Cyanide leaching is the predominant process of gold extraction in large scale mining. Current initiatives for reducing the use of mercury in small scale and artisanal mining tend towards the cyanide technology as the only feasible alternative. Thus, the deliberate handling in consideration of the hazardous nature of cyanide compounds is an issue of particular importance. The hydrogen cyanide volat ...
DOI:
10.1016/j.scitotenv.2018.01.320

51. Operation of a 100kW chemical-looping combustor with Mexican petroleum coke and Cerrejón coal

Author:
Pontus Markström; Carl Linderholm; Anders Lyngfelt
Source:
Applied energy 2014 v.113 pp. 1830-1835
ISSN:
0306-2619
Subject:
air; carbon dioxide; carbon monoxide; coal; hydrogen; mass flow; methane; oxygen; petroleum; temperature; Colombia
Abstract:
... This study describes the design and operation of a 100kW chemical-looping combustor for solid fuels. Six experiments of continuous operation, varying between 8 and 32min in length, have been conducted. The fuels investigated were a Mexican petroleum coke and a bituminous coal from Cerrejón in Colombia. Overall, it was found that operation was stable and loss of char to the air reactor was small, m ...
DOI:
10.1016/j.apenergy.2013.04.066

52. Optimizing a woodchip and coal co-firing retrofit for a power utility boiler using CFD

Author:
Haining Gao; Allan Runstedtler; Adrian Majeski; Patrick Boisvert; Doug Campbell
Source:
Biomass and bioenergy 2016 v.88 pp. 35-42
ISSN:
0961-9534
Subject:
air; carbon; coal; combustion; fluid mechanics; fly ash; models; nitric oxide; oxygen; particle size; wood chips; Colombia
Abstract:
... A computational fluid dynamics (CFD) tool, CFX-TASCflow, with a drag force sub-model for woodchip particles was used to explore the optimization of woodchip co-firing of a Canadian utility boiler, after it was first validated by comparing the model results with field operation data when firing Colombia coal. The CFD model predicted both a small increase in NO emissions and a significant increase i ...
DOI:
10.1016/j.biombioe.2016.03.006

53. PCDD/PCDF and dl-PCB in the ambient air of a tropical Andean city: Passive and active sampling measurements near industrial and vehicular pollution sources

Author:
J. Cortés; C.M. González; L. Morales; M. Abalos; E. Abad; B.H. Aristizábal
Source:
Science of the total environment 2014 v.491-492 pp. 67-74
ISSN:
0048-9697
Subject:
air; ambient temperature; emissions; incinerators; metallurgy; monitoring; municipal solid waste; pollution; polychlorinated biphenyls; polychlorinated dibenzodioxins; polychlorinated dibenzofurans; samplers; toxicity; urban areas; Andes region; Colombia
Abstract:
... Concentration gradients were observed in gas and particulate phases of PCDD/F originating from industrial and vehicular sources in the densely populated tropical Andean city of Manizales, using passive and active air samplers. Preliminary results suggest greater concentrations of dl-PCB in the mostly gaseous fraction (using quarterly passive samplers) and greater concentrations of PCDD/F in the mo ...
DOI:
10.1016/j.scitotenv.2014.01.113

54. Perception of conservation strategies and nature’s contributions to people around Chingaza National Natural Park, Colombia

Author:
Sara Pedraza; Adriana Sanchez; Nicola Clerici; Libertad Ospina; Alexandra Quintero; Francisco J Escobedo
Source:
Environmental conservation 2020 v.47 no.3 pp. 158-165
ISSN:
1469-4387
Subject:
air; air pollution; climate change; community service; conservation areas; deforestation; ecosystems; governance; highlands; outdoor recreation; people; spatial data; statistics; surveys; water supply; Colombia
Abstract:
... A conventional conservation strategy is establishing protected areas to help combat anthropogenic and climate change impacts on tropical ecosystems, but the effectiveness of these measures is often hampered in upland areas by resource conflicts among armed groups, citizens and government institutions. Improved governance and community participation are key to effectively conserving these areas, ye ...
DOI:
10.1017/S037689292000020X

55. Personal exposure to air pollutants in a Bus Rapid Transit System: Impact of fleet age and emission standard

Author:
R. Morales Betancourt; B. Galvis; J.M. Rincón-Riveros; M.A. Rincón-Caro; A. Rodriguez-Valencia; O.L. Sarmiento
Source:
Atmospheric environment 2019 v.202 pp. 117-127
ISSN:
1352-2310
Subject:
World Health Organization; aerosols; air; air pollutants; air pollution; carbon; carbon monoxide; guidelines; particulate emissions; particulates; traffic; zero emissions; Colombia
Abstract:
... This work documents the extremely high concentrations of fine aerosol particles (PM2.5), equivalent black carbon (eBC) and carbon monoxide (CO) experienced by commuters in one of the world largest Bus Rapid Transit (BRT) systems, located in Bogotá, Colombia. A strong relationship between vehicle emissions standard and in-vehicle concentrations was established. Extensive measurements of PM2.5, eBC, ...
DOI:
10.1016/j.atmosenv.2019.01.026

56. Physicochemical Characterization of Airborne Particulate Matter in Medellín, Colombia, and its Use in an In Silico Study of Ventricular Action Potential

Author:
Camilo Zapata-Hernandez; Geraldine Durango-Giraldo; Catalina Tobón; Robison Buitrago-Sierra
Source:
Water, air, and soil pollution 2020 v.231 no.10 pp. 508
ISSN:
0049-6979
Subject:
action potentials; air; calcium; carbon; carbon dioxide; carbon monoxide; chemical composition; computer simulation; energy-dispersive X-ray analysis; fuel combustion; human health; industry; iron; lead; lubricants; particulates; physicochemical properties; silicon; soil pollution; thermogravimetry; water; Colombia; Latin America
Abstract:
... Particulate matter (PM) is a complex mixture of particles that changes over time and from place to place; however, most PM is caused by the fuel combustion of motor vehicles and industry. PM is associated with acute and chronic illnesses, such as pulmonary and cardiovascular diseases. Medellín is one of the most polluted cities in Latin America. Therefore, the physicochemical characterization of i ...
DOI:
10.1007/s11270-020-04884-5

57. Pollination of Bactris guineensis (Arecaceae), a potential economically exploitable fruit palm from the Colombian Caribbean

Author:
Edwin Brieva-Oviedo; Artur Campos D Maia; Luis Alberto Núñez-Avellaneda
Source:
Flora 2020 v.269 pp. 151628
ISSN:
0367-2530
Subject:
Bactris; air; females; flora; flowering; flowers; fruit yield; fruits; hydrodynamics; insects; kairomones; males; markets; odors; phenology; pollen; pollen flow; pollinators; protogyny; reproductive success; sap; Caribbean; Colombia
Abstract:
... Regardless of the ecological and economical importance of palms, their pollination strategies and the identities of their true pollinators are still contentious subjects. Bactris guineensis grows in open areas in lowland Caribbean Colombia. Its fruits have long been an important component of local economy and are now targeted for broader scale production for the Colombian market. We explored detai ...
DOI:
10.1016/j.flora.2020.151628

58. Polychlorinated dibenzo-p-dioxin and dibenzofuran in urban air of an Andean city

Author:
B.H. Aristizábal; C.M. Gonzalez; L. Morales; M. Abalos; E. Abad
Source:
Chemosphere 2011 v.85 no.2 pp. 170-178
ISSN:
0045-6535
Subject:
air; cities; combustion; diesel engines; diesel fuel; emissions; gasoline; particulates; polychlorinated dibenzodioxins; polychlorinated dibenzofurans; public transportation; rain; recycling; steel; Andes region; Colombia
Abstract:
... Particle-bound polychlorinated dibenzo-p-dioxins and polychlorinated dibenzofurans (PCDD/Fs) in ambient air were monitored together with particulate matter less than 10μm (PM₁₀) at three sampling sites of the Andean city of Manizales, Colombia; during September 2009 and July 2010. PCDD/Fs ambient air emissions ranged from 1fg WHO-TEQ m⁻³ to 52fg WHO-TEQ m⁻³ in particulate fraction. The PM₁₀ concen ...
DOI:
10.1016/j.chemosphere.2011.06.035
PubMed:
21745682

59. Presence of Hemidactylus frenatus and Hemidactylus mabouia (Squamata: Gekkonidae) in Leticia, Colombian Amazon

Author:
José Rancés Caicedo Portilla
Source:
Biota Colombiana 2019 v.20 no.2 pp. -
ISSN:
2539-200X
Subject:
Hemidactylus; air; basins; Amazonia; Brazil
Abstract:
... The Common House Gecko Hemidactylus frenatus is recorded for the first time in the city of Leticia, in Colombian Amazonia. The species probably reached this region through air and/or fluvial ways. Hemidactylus frenatus and Hemidactylus mabouia are recorded coexisting in downtown Leticia, where it seems to be displacing H. mabouia. H. frenatus will probably continue its dispersal to other populated ...
DOI:
10.21068/c2019.v20n02a09

60. Probabilistic meta-analysis of risk from the exposure to Hg in artisanal gold mining communities in Colombia

Author:
Eduardo De Miguel; Diana Clavijo; Marcelo F. Ortega; Amaia Gómez
Source:
Chemosphere 2014 v.108 pp. 183-189
ISSN:
0045-6535
Subject:
adults; air; breathing; burning; exposure pathways; fish; fish consumption; gold; ingestion; mercury; meta-analysis; methylmercury compounds; mining; national surveys; pollutants; probabilistic risk assessment; probability distribution; risk; towns; traditional technology; uncertainty; vapors; Colombia
Abstract:
... Colombia is one of the largest per capita mercury polluters in the world as a consequence of its artisanal gold mining activities. The severity of this problem in terms of potential health effects was evaluated by means of a probabilistic risk assessment carried out in the twelve departments (or provinces) in Colombia with the largest gold production. The two exposure pathways included in the risk ...
DOI:
10.1016/j.chemosphere.2014.01.035

61. Reduction and Oxidation Kinetics of Fe–Mn-Based Minerals from Southwestern Colombia for Chemical Looping Combustion

Author:
Francisco J. Velasco-Sarria; Carmen R. Forero; Eduardo Arango; Juan Adánez
Source:
Energy & fuels 2018 v.32 no.2 pp. 1923-1933
ISSN:
1520-5029
Subject:
air; carbon dioxide; carbon monoxide; coal; combustion; coproducts; crushing; energy; gasification; hydrogen; iron; manganese; methane; minerals; models; nitrogen; oxygen; silica; thermography; Colombia
Abstract:
... The oxygen carrier (OC) is the main component of the chemical looping combustion (CLC), process. Most OCs have been developed synthetically using an active metal oxide combined with an inert material. When solid fuels are used, the OC becomes mixed with the ashes generated during the CLC process and has to be removed, thereby increasing costs. As a result, there is growing interest in the use of l ...
DOI:
10.1021/acs.energyfuels.7b02188

62. Revisiting an Aspergillus flavus Strain Isolated from an Egyptian Sugarcane Field in 1930

Author:
Mohamed F. Abdallah; Kris Audenaert; Sarah De Saeger; Jos Houbraken
Source:
Microorganisms 2020 v.8 no.11 pp. -
ISSN:
2076-2607
Subject:
Aspergillus flavus; Pseudococcus; aflatoxins; air; biological control; climate change; crop losses; foods; fungi; hospitals; host-pathogen relationships; light; occurrence; soil; strains; sugarcane; surveys; taxonomy; Brazil; Colombia
Abstract:
... The aflatoxin type B and G producer Aspergillus novoparasiticus was described in 2012 and was firstly reported from sputum, hospital air (Brazil), and soil (Colombia). Later, several survey studies reported the occurrence of this species in different foods and other agricultural commodities from several countries worldwide. This short communication reports on an old fungal strain (CBS 108.30), iso ...
DOI:
10.3390/microorganisms8111633

63. Seasonal and Spatial Variations in the Presence of Giardia and Cryptosporidium in Rural Drinking Water Supply Systems in Different Municipalities of Antioquia, Colombia

Author:
Catalina Escobar; Evelyn Becerra-Agudelo; Torres Hernández; Maicol Stiven; Yudy Andrea Londoño; Diana Catalina Rodríguez; Gustavo A. Peñuela
Source:
Water, air, and soil pollution 2022 v.233 no.9 pp. 389
ISSN:
0049-6979
Subject:
Cryptosporidium; Giardia; air; chlorination; filtration; humans; risk; sand; soil pollution; water; water quality; water supply; water treatment; Colombia
Abstract:
... This study evaluated the seasonal and spatial variations in the presence of Giardia and Cryptosporidium in rural drinking water supply systems of different municipalities of Antioquia. The municipalities evaluated were Envigado, Caldas, Sabaneta, La Estrella, Itagüi, Bello, Barbosa, Copacabana, and Girardota, located in the department of Antioquia, Colombia. The experimentation was carried out ove ...
DOI:
10.1007/s11270-022-05760-0

64. Semivolatile Organic Compounds (SVOCs) in the atmosphere of Santiago de Cali, Valle del Cauca, Colombia along north-south transect using polyurethane foam disk as passive air samplers

Author:
Ángela L. Álvarez; Karla Pozo; Martha I. Paéz; Victor H. Estellano; Yasna Llanos; Silvano Focardi
Source:
Atmospheric Pollution Research 2016 v.7 pp. 945-953
ISSN:
1309-1042
Subject:
DDT (pesticide); monitoring; phenanthrenes; polyurethanes; samplers; polychlorinated biphenyls; volatile organic compounds; HCH (pesticide); air; sugarcane; foams; endosulfan; molecular weight; air pollution; Colombia; Latin America
Abstract:
... A preliminary evaluation of Semivolatile Organic Compounds (SVOCs) was performed in the atmosphere of Santiago de Cali, Colombia, using passive air samplers based polyurethane foam (PAS-PUF) disks. PAS-PUF were deployed in four sites, along a north-south transect(∼15 km), during one sampling period of ∼4 months in 2011, form the industrial area of Yumbo (EF site) to the agricultural area of Valle ...
DOI:
10.1016/j.apr.2016.05.006

65. Simulating the Hydrological Impact of Green Roof Use and an Increase in Green Areas in an Urban Catchment with i-Tree: A Case Study with the Town of Fontibón in Bogotá, Colombia

Author:
David Bautista; Carlos Peña-Guzmán
Source:
Resources 2019 v.8 no.2 pp. -
ISSN:
2079-9276
Subject:
air; air pollution; basins; biodiversity; case studies; cities; computer software; developing countries; ecosystems; floods; green roofs; groundwater recharge; planning; runoff; soil; temperature; trees; urbanization; vegetation; water pollution; watersheds; Colombia
Abstract:
... Urbanization has produced various social, environmental, and hydrological impacts, such as reduced biodiversity, increased urban temperatures, ecosystem degradation, air and water pollution, changes to hydrological processes, groundwater recharge alterations, increased prevalence of floods, vegetation removal, and potential increases in unstable soils. Finding solutions to mitigate the impacts of ...
DOI:
10.3390/resources8020068

66. Spirometry parameter alterations due to exposure to indoor air pollutants in rural homes in Bogotá, Colombia

Author:
John Alexander Benavides Piracón; Leonel Alexander Martínez Vallejo; Mónica Alejandra Quintana Cortés; Yenny Alejandra Vasquez; Nancy Jeanet Molina Achury; Luis Carlos Belalcázar Cerón; Mario Andrés Hernández
Source:
Environmental science and pollution research 2021 v.28 no.40 pp. 57275-57287
ISSN:
0944-1344
Subject:
air; biomass; carbon monoxide; cross-sectional studies; lung function; people; regression analysis; research; tobacco use; Colombia
Abstract:
... The aim of this study was to determine the association between the concentrations of intradomiciliary PM₂.₅, CO, and BC and alterations in respiratory function parameters in a population living in rural dwellings in Bogotá, Colombia. For this cross-sectional study, people were recruited from the rural areas of the localities of Usme and Sumapaz in Bogotá. In total, 68 participants were recruited b ...
DOI:
10.1007/s11356-021-14717-5

67. Submerged cultivation, characterization and in vitro antitumor activity of polysaccharides from Schizophyllum radiatum

Author:
Xiomara López-Legarda; Magdalena Rostro-Alanis; Roberto Parra-Saldivar; Janny A. Villa-Pulgarín; Freimar Segura-Sánchez
Source:
International journal of biological macromolecules 2021 v.186 pp. 919-932
ISSN:
0141-8130
Subject:
Fourier transform infrared spectroscopy; Schizophyllum; X-ray diffraction; adjuvants; air; antineoplastic activity; biomass; bioreactors; cancer therapy; exopolysaccharides; fermentation; gel chromatography; glucans; high performance liquid chromatography; immunostimulants; macrophages; metabolites; molecular systematics; mushrooms; neoplasm cells; nuclear magnetic resonance spectroscopy; pH; process control; refractive index; tropical forests; water solubility; white-rot fungi; Colombia
Abstract:
... Production of polysaccharides by white-rot-fungi in submerged cultivation has several advantages due to process control. This work deals with the submerged cultivation, extraction and antitumor activity of polysaccharides from a wild strain of Schizophyllum radiatum isolated from a tropical forest of Colombia. The mushroom was cultivated in laboratory conditions, and classified by classical and mo ...
DOI:
10.1016/j.ijbiomac.2021.07.084

68. Suitability evaluation of four methods to estimate leaf wetness duration in a greenhouse rose crop

Author:
Gil, R.; Bojaca, C.R.; Schrevens, E.
Source:
Acta horticulturae 2011 v. no.893 pp. 797-804
ISSN:
0567-7572
Subject:
air; crops; dew; heat transfer; leaves; model validation; models; ornamental plants; pathogens; plant diseases and disorders; plastic greenhouses; plateaus; prediction; relative humidity; temperature; thermocouples; Colombia
Abstract:
... A water-film above the leaf surface is a necessary condition for the start of the infective process of many pathogens. Therefore, the Leaf Wetness Duration (LWD) has a strong relationship with the development and outbreak of plant diseases. The occurrence of free water on leaf surfaces is a common situation for the simple plastic greenhouses used to grow ornamental crops in the Bogota Plateau (Col ...

69. Toxic metals and associated sporulated bacteria on Andean hummingbird feathers

Author:
Esteban Góngora; Carlos Daniel Cadena; Jenny Dussán
Source:
Environmental science and pollution research international 2016 v.23 no.22 pp. 22968-22979
ISSN:
0944-1344
Subject:
Bacillaceae; air; bacteria; chromium; feathers; humans; hummingbirds; indicator species; lead; morphs; pollutants; ribosomal RNA; soil; spectroscopy; toxicity; tropical birds; Andes region; Colombia
Abstract:
... Human activities in the Sabana de Bogotá, Colombia, release toxic metals such as lead (Pb) and chromium (Cr) into the environment polluting the air, water, and soil. Because birds are in contact with these pollutants and their sources, they may serve as bioindicator organisms. We evaluated the use of hummingbird feathers obtained from individuals captured in three sites of the Sabana de Bogotá as ...
DOI:
10.1007/s11356-016-7506-3

70. Transboundary transport of biomass burning aerosols and photochemical pollution in the Orinoco River Basin

Author:
Andrea J. Hernandez; Luis A. Morales-Rincon; Dien Wu; Derek Mallia; John C. Lin; Rodrigo Jimenez
Source:
Atmospheric environment 2019 pp. -
ISSN:
1352-2310
Subject:
aerosols; air; air quality; atmospheric chemistry; biomass; burning; cities; dry season; ecosystems; emissions; hills; models; monitoring; ozone; particulates; photochemistry; pollution; remote sensing; river deltas; savannas; trade winds; traffic; watersheds; wet season; Andes region; Atlantic Ocean; Colombia; Orinoco River; Venezuela
Abstract:
... The “Llanos” is a complex savanna ecosystem that occupies most of the Orinoco River Basin, from the Colombian Andes foothills almost to the Orinoco River Delta at the Atlantic Ocean in Venezuela. It undergoes periodic, human-induced and natural biomass burning during the dry season, which is shorter in Colombia. Northeast trade winds that prevail during the dry season can transport biomass burning ...
DOI:
10.1016/j.atmosenv.2019.01.051

71. Urban growth and heat islands: A case study in micro-territories for urban sustainability

Author:
Nidia Isabel Molina-Gómez; Laura Marcela Varon-Bravo; Ronal Sierra-Parada; P. Amparo López-Jiménez
Source:
Urban ecosystems 2022 v.25 no.5 pp. 1379-1397
ISSN:
1083-8155
Subject:
Landsat; air; case studies; climate; energy; population density; principal component analysis; socioeconomics; surface temperature; traffic; urbanization; vegetation; wind; Colombia
Abstract:
... Rapid urbanization contributes to the development of phenomena such as climate variability, especially in tropical countries, which negatively impact ecosystems and humans, factors that influence urban sustainability. Additionally, the increase of building construction prevents the flow of wind streams contributing to the retention of pollutants and hot air masses, causing events such as urban hea ...
DOI:
10.1007/s11252-022-01232-9

72. Use of a Low-Cost Colombian Manganese Mineral as a Solid Oxygen Carrier in Chemical Looping Combustion Technology

Author:
Eduardo Arango Durango; Carmen R. Forero; Francisco J. Velasco-Sarria
Source:
Energy & fuels 2021 v.35 no.15 pp. 12252-12259
ISSN:
1520-5029
Subject:
air; biomass; carbon; carbon dioxide; combustion; direct contact; energy efficiency; flue gas; gasification; manganese; oxygen; solid wastes; thermogravimetry; viability; Colombia
Abstract:
... Chemical looping combustion (CLC) has been classified as an energy efficient technology for capturing CO₂ emitted in combustion processes. CLC uses metal oxides as solid oxygen carriers (OCs), which transfer oxygen from air to fuel, avoiding direct contact between them, and thus obtaining a high-CO₂ purity flue gas that facilitates the capture and storage of CO₂. The viability of the process large ...
DOI:
10.1021/acs.energyfuels.1c00587

73. Variation of hydro-physical properties of burnt rice husk used for carnation crops: Improvement of fertigation criteria

Author:
M.F. Quintero; D. Ortega; J.L. Valenzuela; M. Guzmán
Source:
Scientia horticulturae 2013 v.154 pp. 82-87
ISSN:
0304-4238
Subject:
Dianthus caryophyllus; air; buffering capacity; bulk density; byproducts; containers; crops; farms; fertigation; greenhouses; industry; particle size distribution; plateaus; rice; rice hulls; roots; temporal variation; Colombia
Abstract:
... A by-product of the rice industry, burnt rice husk (BRH) is the main substrate in carnation crops in Colombia due to its low cost and high availability. This paper characterizes the physical properties of BRH over a 100-week cycle in three farms on the Bogotá plateau. Particle density, bulk density, particle size distribution, total pore space, container capacity, air space, available water, easil ...
DOI:
10.1016/j.scienta.2013.02.019

74. Well-to-Wheels Approach for the Environmental Impact Assessment of Road Freight Services

Author:
Jose Luis Osorio-Tejada; Eva Llera-Sastresa; Ahmad Hariza Hashim
Source:
Sustainability 2018 v.10 no.12 pp. -
ISSN:
2071-1050
Subject:
air; business enterprises; case studies; databases; developed countries; emissions; emissions factor; energy; environmental assessment; environmental impact; freight; fuel production; geography; mountains; road transportation; roads; topology; uncertainty; Colombia; Malaysia; Spain
Abstract:
... The diffuse nature of road transport and the heterogeneity of heavy vehicles have hindered the implementation of emissions accounting systems. Even though there are emission factors in well-known databases, these factors have commonly been designed in industrialized countries, which might have geography, type of roads, and operating conditions different to other countries. This paper proposes a me ...
DOI:
10.3390/su10124487

75. aiRe - A web-based R application for simple, accessible and repeatable analysis of urban air quality data

Author:
Juan José Díaz; Ivan Mura; Juan Felipe Franco; Raha Akhavan-Tabatabaei
Source:
Environmental modelling & software 2021 v.138 pp. 104976
ISSN:
1364-8152
Subject:
Internet; air; air pollution; air quality; automation; computer software; data collection; decision making; local government; ownership; Colombia
Abstract:
... Recent technological advances in collecting data on emission sources, meteorological conditions and concentration of air pollutants in urban areas, offer invaluable opportunities for the better understanding of air quality problems. However, processing large sets of data to extract statistically valid evidence poses many challenges from both the conceptual and technical viewpoints. Air quality dat ...
DOI:
10.1016/j.envsoft.2021.104976

76. The challenges of applying an Activity-Based Sampling methodology to estimate the cancer risk associated with asbestos contaminated landfilled zones

Author:
María Fernanda Cely-García; Benjamin Lysaniuk; Roberto Pasetto; Juan Pablo Ramos-Bonilla
Source:
Environmental research 2020 v.181 pp. 108893
ISSN:
0013-9351
Subject:
acceptable risk; air; asbestos; detection limit; inhalation exposure; neoplasms; phase-contrast microscopy; polluted soils; transmission electron microscopy; urban areas; Colombia
Abstract:
... Inhabitants of Sibaté (Colombia) report that between approximately 1975 and 1985 asbestos-containing materials (ACM) were dumped at different locations in the urban area of the municipality. Starting in around 1986, the dumping of materials resulted in landfilled zones, on top of which different facilities were then constructed. In a previous study, an underground friable asbestos layer was discov ...
DOI:
10.1016/j.envres.2019.108893

77. A global observational analysis to understand changes in air quality during exceptionally low anthropogenic emission conditions

Author:
Ranjeet S. Sokhi; Vikas Singh; Xavier Querol; Sandro Finardi; Admir Créso Targino; Maria de Fatima Andrade; Radenko Pavlovic; Rebecca M. Garland; Jordi Massagué; Shaofei Kong; Alexander Baklanov; Lu Ren; Oksana Tarasova; Greg Carmichael; Vincent-Henri Peuch; Vrinda Anand; Graciela Arbilla; Kaitlin Badali; Gufran Beig; Luis Carlos Belalcazar; Andrea Bolignano; Peter Brimblecombe; Patricia Camacho; Alejandro Casallas; Jean-Pierre Charland; Jason Choi; Eleftherios Chourdakis; Isabelle Coll; Marty Collins; Josef Cyrys; Cleyton Martins da Silva; Alessandro Domenico Di Giosa; Anna Di Leo; Camilo Ferro; Mario Gavidia-Calderon; Amiya Gayen; Alexander Ginzburg; Fabrice Godefroy; Yuri Alexandra Gonzalez; Marco Guevara-Luna; Sk. Mafizul Haque; Henno Havenga; Dennis Herod; Urmas Hõrrak; Tareq Hussein; Sergio Ibarra; Monica Jaimes; Marko Kaasik; Ravindra Khaiwal; Jhoon Kim; Anu Kousa; Jaakko Kukkonen; Markku Kulmala; Joel Kuula; Nathalie La Violette; Guido Lanzani; Xi Liu; Stephanie MacDougall; Patrick M. Manseau; Giada Marchegiani; Brian McDonald; Swasti Vardhan Mishra; Luisa T. Molina; Dennis Mooibroek; Suman Mor; Nicolas Moussiopoulos; Fabio Murena; Jarkko V. Niemi; Steffen Noe; Thiago Nogueira; Michael Norman; Juan Luis Pérez-Camaño; Tuukka Petäjä; Stuart Piketh; Aditi Rathod; Ken Reid; Armando Retama; Olivia Rivera; Néstor Y. Rojas; Jhojan P. Rojas-Quincho; Roberto San José; Odón Sánchez; Rodrigo J. Seguel; Salla Sillanpää; Yushan Su; Nigel Tapper; Antonio Terrazas; Hilkka Timonen; Domenico Toscano; George Tsegas; Guus J.M. Velders; Christos Vlachokostas; Erika von Schneidemesser; Rajasree VPM; Ravi Yadav; Rasa Zalakeviciute; Miguel Zavala
Source:
Environment international 2021 v.157 pp. 106818
ISSN:
0160-4120
Subject:
COVID-19 infection; World Health Organization; air; air pollutants; air quality; biomass; climate change; dust; environment; meteorology; observational studies; oxidants; socioeconomics; traffic; Colombia; East Asia; Europe
Abstract:
... This global study, which has been coordinated by the World Meteorological Organization Global Atmospheric Watch (WMO/GAW) programme, aims to understand the behaviour of key air pollutant species during the COVID-19 pandemic period of exceptionally low emissions across the globe. We investigated the effects of the differences in both emissions and regional and local meteorology in 2020 compared wit ...
DOI:
10.1016/j.envint.2021.106818

78. The weight method: A new screening method for estimating pesticide deposition from knapsack sprayers in developing countries

Author:
Glenda García-Santos; Dominik Scheiben; Claudia R. Binder
Source:
Chemosphere 2011 v.82 no.11 pp. 1571-1577
ISSN:
0045-6535
Subject:
paper; potatoes; risk; pesticide residues; agrochemicals; air; clothing; occupational exposure; screening; labeling techniques; humans; monitoring; variance; cost analysis; developing countries; soil; spraying; pesticides; knapsack sprayers; unsaturated conditions; soil treatment; Colombia
Abstract:
... Investigations of occupational and environmental risk caused by the use of agrochemicals have received considerable interest over the last decades. And yet, in developing countries, the lack of staff and analytical equipment as well the costs of chemical analyses make it difficult, if not impossible, to monitor pesticide contamination and residues in humans, air, water, and soils. A new and simple ...
DOI:
10.1016/j.chemosphere.2010.11.058
PubMed:
21183200