PubAg

Main content area

You searched for: Subject "pollutants" Remove constraint Subject: "pollutants"
Start Over

Search

31,134  Search Results

« Previous | 1 - 20 of 31,134 |
Number of results to display per page

Search Results

1. Break point analyses of human or environmental temporal trends of POPs

Author:
Hites, Ronald A.
Source:
The Science of the total environment 2019 v.664 pp. 518-521
ISSN:
0048-9697
Subject:
pollutants,   etc   ; humans; regression analysis;     Show all 3 Subjects
Abstract:
... The concentrations of a pollutant in people or in the environment are often changing as a function of time. In many cases, this rate of change may be relatively constant as a function of time; thus, first-order kinetics can be applied to these data. In other cases, the rate at which the concentrations of a pollutant are changing may be different before and after some event, for example before and ...
DOI:
10.1016/j.scitotenv.2019.01.353

2. Editorial of the VSI “Antibiotics and heavy metals in the environment: Facing the challenge”

Author:
Núñez-Delgado, Avelino; Zhou, Yaoyu; Necibi, Chaker; Xu, Yanbin; Fernández-Calviño, David
Source:
The Science of the total environment 2019 v.678 pp. 30-32
ISSN:
0048-9697
Subject:
pollutants,   etc   ; antibiotics; databases; heavy metals;     Show all 4 Subjects
Abstract:
... The Virtual Special Issue (VSI) “Antibiotics and Heavy Metals in the Environment: Facing the Challenge” received more than 100 submissions from research teams around the world. Finally, more than 50 papers were accepted and published. These very interesting research papers allow going ahead in the knowledge of different aspects which determine the fate of antibiotics and heavy metals in the enviro ...
DOI:
10.1016/j.scitotenv.2019.04.421

3. ‘Cocktails and dreams’: the indoor air quality that people are exposed to while sleeping

Author:
Katsoyiannis, Athanasios; Cincinelli, Alessandra
Source:
Current opinion in environmental science & health 2019 v.8 pp. 6-9
ISSN:
2468-5844
Subject:
pollutants,   etc   ; air; air quality; toxicity;     Show all 4 Subjects
Abstract:
... People spend more than 90% of their time indoors and a very big part of that time inside their bedrooms, suggesting that the quality of the air that people breathe during sleeping is of particular importance and can play an important role in our overall exposure to chemicals and also in our well-being. The bedrooms' air quality is, according to the authors’ opinion, rather neglected in most studie ...
DOI:
10.1016/j.coesh.2018.12.005

4. Implementation of interactive three-dimensional visualization of air pollutants using WebGL

Author:
Liu, Dongwei; Peng, Jie; Wang, Yanyu; Huang, Meijin; He, Qianshan; Yan, Yafei; Ma, Bingxin; Yue, Caijun; Xie, Ying
Source:
Environmental modelling & software 2019 v.114 pp. 188-194
ISSN:
1364-8152
Subject:
air pollutants,   etc   ; air pollution; algorithms;     Show all 3 Subjects
Abstract:
... The visualization of a three-dimensional (3D) distribution of high-density data for scientific computations with limited computing resources under a network environment is difficult. This paper describes the implementation of an interactive 3D display of air pollutants in a network environment using the open-source WebGL class library, Three. js. A kd-tree is used to find the nearest point data to ...
DOI:
10.1016/j.envsoft.2019.01.019

5. Relative doses instead of relative concentrations for the determination of the consequences of the radiological atmospheric releases

Author:
Mlakar, Primož; Božnar, Marija Zlata; Grašič, Boštjan
Source:
Journal of environmental radioactivity 2019 v.196 pp. 1-8
ISSN:
0265-931X
Subject:
pollutants,   etc   ; accidents; landscapes; radioactivity; weather;     Show all 5 Subjects
Abstract:
... Radiological atmospheric releases require population dose calculation for proper determination of preventive measures. The old concept of relative concentrations requires long lasting constant emission which is not realistic.The proposed concept of the “relative doses” is the generalization and expansion of the known concept of relative concentrations. Relative doses allow an evaluation of the gen ...
DOI:
10.1016/j.jenvrad.2018.10.005

6. Micromotors for “Chemistry-on-the-Fly”

Author:
Karshalev, Emil; Esteban-Fernández de Ávila, Berta; Wang, Joseph
Source:
Journal of the American Chemical Society 2018 v.140 no.11 pp. 3810-3820
ISSN:
1520-5126
Subject:
pollutants,   etc   ; chelation;     Show all 2 Subject
Abstract:
... This perspective reviews mobile micro/nanomotor scaffolds for performing “chemistry-on-the-fly”. Synthetic nano/micromotors offer great versatility and distinct advantages in diverse chemical applications owing to their efficient propulsion and facile surface functionalization that allow these mobile platforms to move and disperse reactive materials across the solution. Such dynamic microreactors ...
DOI:
10.1021/jacs.8b00088

7. Bi-objective green scheduling in uniform parallel machine environments

Author:
Safarzadeh, Hamid; Niaki, Seyed Taghi Akhavan
Source:
Journal of cleaner production 2019 v.217 pp. 559-572
ISSN:
0959-6526
Subject:
pollutants,   etc   ; equipment; manufacturing; models; operating costs;     Show all 5 Subjects
Abstract:
... Green and sustainability issues are being considered extensively in industry and in the literature. Most of the green-related effects in the manufacturing sector can be modeled by the costs associated with the production machines due to their resource consumption and/or pollutant emission, as a part of the operation cost. Accordingly, taking into account the machine processing costs alongside the ...
DOI:
10.1016/j.jclepro.2019.01.166

8. Model-based opti mization of phosphorus management strategies in Sur WWTP, Madrid

Author:
Lizarralde, I.; Fernández-Arévalo, T.; Manas, A.; Ayesa, E.; Grau, P.
Source:
Water research 2019 v.153 pp. 39-52
ISSN:
0043-1354
Subject:
pollutants,   etc   ; mathematical models; phosphorus; wastewater; wastewater treatment;     Show all 5 Subjects
Abstract:
... Phosphorus has been considered as a pollutant to be removed from the wastewater. In the last years, however, it has been considered a valuable asset that needs to be recovered due to its shortage in nature. The study of optimum phosphorus management in wastewater treatment plants is not straightforward, due to the complexity of technologies and configurations that may be applied for phosphorus rem ...
DOI:
10.1016/j.watres.2018.12.056

9. Multi-objective combined heat and power unit commitment using particle swarm optimization

Author:
Anand, Himanshu; Narang, Nitin; Dhillon, J.S.
Source:
Energy 2019 v.172 pp. 794-807
ISSN:
0360-5442
Subject:
pollutants,   etc   ; algorithms; heat; models; power generation;     Show all 5 Subjects
Abstract:
... The unit commitment (UC) problem is formulated by undertaking dual operating mode combined heat and power (CHP) units along with thermal and heat units. The extraction and backpressure mode of the CHP unit provides the facility to adopt immediate change in the generation, which depends upon the ratio of the heat and power generation. The impact of dual-mode CHP (DM-CHP) unit has been examined on m ...
DOI:
10.1016/j.energy.2019.01.155

10. Resource quality of wood waste: The importance of physical and chemical impurities in wood waste for recycling

Author:
Faraca, Giorgia; Boldrin, Alessio; Astrup, Thomas
Source:
Waste management 2019 v.87 pp. 135-147
ISSN:
0956-053X
Subject:
persistent organic pollutants,   etc   ; particleboards; recycling; wood;     Show all 4 Subjects
Abstract:
... Recycling of post-consumer wood waste into particleboard may be hindered by the presence of physical and chemical impurities in the waste stream, therefore calling for increased attention on the quality of wood waste. However, wood waste comprises several uses/types of wood, along with different levels of contamination. This study provides the detailed sampling and characterisation of wood waste a ...
DOI:
10.1016/j.wasman.2019.02.005

11. Designed and real hydraulic load of household wastewater treatment plants

Author:
Bugajski, Piotr M.; Kurek, Karolina; Młyński, Dariusz; Operacz, Agnieszka
Source:
Journal of water and land development 2019 v.40 no.1 pp. 155-160
ISSN:
2083-4535
Subject:
pollutants,   etc   ; sewage; sewage treatment; wastewater treatment;     Show all 4 Subjects
Abstract:
... The paper presents the results of the analysis concerning the verification of the actual hydraulic load and the load of organic pollutants compared to the conditions designed for 4 household wastewater treatment plants. The researches were carried out in the annual period from May 2015 to April 2016. Based on the conducted analysis, it was found that objects act as underloaded hydraulically and th ...
DOI:
10.2478/jwld-2019-0017

12. A study on the spatiotemporal characteristics and change trend of the atmospheric environmental carrying capacity in the Jing-Jin-Ji region, China

Author:
Li, Chao; Li, Huajiao; Feng, Sida; Liu, Xueyong; Guo, Sui
Source:
Journal of cleaner production 2019 v.211 pp. 27-35
ISSN:
0959-6526
Subject:
pollutants,   etc   ; carrying capacity; cities; monitoring; China;     Show all 5 Subjects
Abstract:
... The Jing-Jin-Ji region is one of the most atmospherically polluted regions in the world. In this study, the concepts, calculations, and classifications of the atmospheric environmental overloading index (AEOI) have been further developed. The AEOI has been calculated using the daily monitoring values of the concentrations of six main atmospheric pollutants from a total of 13 cities in the region f ...
DOI:
10.1016/j.jclepro.2018.11.045

13. Recent advances in supported molecular sieve catalysts with wide temperature range for selective catalytic reduction of NOX with C₃H₆

Author:
Xu, Junqiang; Wang, Honglin; Guo, Fang; Zhang, Chuan; Xie, Jiaqing
Source:
RSC advances 2019 v.9 no.2 pp. 824-838
ISSN:
2046-2069
Subject:
pollutants,   etc   ; catalysts; catalytic activity; reducing agents; temperature;     Show all 5 Subjects
Abstract:
... NOX is a major atmospheric pollutant that is emanated by motor vehicles, thermal power plants, and industrial boilers. Therefore, the removal of NOX is a research hotspot in the exhaust gas treatment field. Numerous methods have been used to eliminate NOX: the selective catalytic reduction of NOX using C₃H₆ as the reducing agent (C₃H₆-SCR) is an effective method to remove NOX. The key issue in NOX ...
DOI:
10.1039/c8ra08635d

14. Transient dispersion of an initial point pollutant concentration in wetland flows

Author:
Wang, Ping; Zeng, Li; Huai, Wenxin
Source:
Environmental science and pollution research international 2018 v.25 no.34 pp. 34414-34425
ISSN:
0944-1344
Subject:
pollutants,   etc   ; statistical analysis; wetlands;     Show all 3 Subjects
Abstract:
... Initial point pollutant transport in wetland flows acts as a typical form in various applications. Accurate determination of the basic characteristics for dispersion fundamentally supports the predication of pollutant transport especially in the transient stage. This work analytically studies the transient dispersion of an initial point pollutant concentration in wetland flows through the phase av ...
DOI:
10.1007/s11356-018-3376-1

15. Emissions of Phthalates from Indoor Flat Materials in Chinese Residences

Author:
Shi, Shanshan; Cao, Jianping; Zhang, Yinping; Zhao, Bin
Source:
Environmental science & technology 2018 v.52 no.22 pp. 13166-13173
ISSN:
1520-5851
Subject:
pollutants,   etc   ; air; emissions; phthalates;     Show all 4 Subjects
Abstract:
... Phthalates are ubiquitous pollutants in residential environments. Indoor airborne phthalate concentrations in Chinese residences are comparable to, or even higher than, those of western countries. However, the major sources of phthalates in Chinese residences are not well-known. In this study, we measured the phthalates emission features of 23 flat materials used in Chinese residences in the labor ...
DOI:
10.1021/acs.est.8b03580

16. Input of Pollutants with Winter Precipitation onto Vorkuta Agglomeration Territory

Author:
Vasilevich, M.I.; Vasilevich, R.S.; Shmarikova, E.V.
Source:
Water resources 2018 v.45 no.3 pp. 338-347
ISSN:
0097-8078
Subject:
pollutants,   etc   ; cement; chemistry; snowpack;     Show all 4 Subjects
Abstract:
... The chemistry of snow cover in the territory of Vorkuta agglomeration is assessed. Pollutant inputs onto the territories of sanitary protection zones of industrial plants of Vorkuta C., including the mines of Vorkutinskaya and Yun’-Yaga and cement factory are calculated. Schematic maps are constructed for the distribution of substances in the examined territory. The input of pollutants onto cement ...
DOI:
10.1134/S0097807818030156

17. Sorption of non-ionic organic compounds by polystyrene in water

Author:
Uber, Tobias H.; Hüffer, Thorsten; Planitz, Sibylle; Schmidt, Torsten C.
Source:
The Science of the total environment 2019 v.682 pp. 348-355
ISSN:
0048-9697
Subject:
pollutants,   etc   ; absorption; hydrophobic bonding; models; packaging; plastics; polystyrenes; sorbates;     Show all 8 Subjects
Abstract:
... Polystyrene (PS) is a plastic material that is well known for its use in many different applications, e.g. as shock sensitive packaging. With its prevalence across society, PS contributes significantly to the overall plastic load in aqueous systems. Sorption of organic compounds by the plastics, especially micrometer-sized particles, in the environment has become a concern in the past years. The a ...
DOI:
10.1016/j.scitotenv.2019.05.040

18. Probing the effects of different lead compounds on the bioavailability of lead to plants

Author:
De Silva, Shamali; Bernett, Chloe; Meaklim, Jean; Abeywardane, Erandika; Reichman, Suzie M.
Source:
Chemosphere 2019 v.230 pp. 24-28
ISSN:
0045-6535
Subject:
pollutants,   etc   ; bioavailability; grasses; lead; lettuce; risk; shoots; soil; solubility; toxicity;     Show all 10 Subjects
Abstract:
... Lead (Pb) is an important pollutant and is released into the environment in many forms. Different lead compounds have a variety of solubilities and so may impact on lead bioavailability and toxicity when added to soil. In this experimental study, we investigated the bioavailability of Pb in soil spiked with 300, 900 and 1500 mg/kg of Pb-acetate, PbCl2 and PbO using lettuce and wallaby grass. The c ...
DOI:
10.1016/j.chemosphere.2019.04.122

19. Diagnosing atmospheric stability effects on the modeling accuracy of PM2.5 /AOD relationship in eastern China using radiosonde data

Author:
Bai, Kaixu; Chang, Ni-Bin; Zhou, Jiayuan; Gao, Wei; Guo, Jianping
Source:
Environmental pollution 2019 v.251 pp. 380-389
ISSN:
0269-7491
Subject:
air pollutants,   etc   ; air pollution; models; particulates; prediction; China;     Show all 6 Subjects
Abstract:
... Atmospheric stability significantly influences the accumulation and dispersion of air pollutants in the near-surface atmosphere, yet few stability metrics have been applied as predictors in statistical PM2.5 concentration mapping practices. In this study, eleven stability metrics were derived from radiosonde soundings collected in eastern China for the time period of 2015–2018 and then applied as ...
DOI:
10.1016/j.envpol.2019.04.104

20. Investigation of chlorophyll degradation by tetracycline

Author:
Rydzyński, Dariusz; Piotrowicz-Cieślak, Agnieszka I.; Grajek, Hanna; Wasilewski, Janusz
Source:
Chemosphere 2019 v.229 pp. 409-417
ISSN:
0045-6535
Subject:
pollutants,   etc   ; absorbance; acidification; chlorophyll; fluorescence; ions; magnesium; protons; spectroscopy; tetracycline;     Show all 10 Subjects
Abstract:
... Antibiotics represent a novel type of environment pollutants which modify chlorophyll content in plants. Spectroscopic methods were employed to investigate the effect of tetracycline on chlorophyll degradation. Changes in absorbance and fluorescence demonstrated that tetracycline reaction with chlorophyll results in the formation of pheophytin, which was confirmed by new bands typical of pheophyti ...
DOI:
10.1016/j.chemosphere.2019.05.035