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1. 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

2. 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

3. 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

4. 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

5. 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

6. 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

7. 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

8. 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

9. 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

10. 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