Springer Link
Chelsea A. Weitekamp, McKayla Lein, Madeleine Strum, Mark Morris, Ted Palma, Darcie Smith, Lukas B. Kerr, Michael J. Stewart,
... 3-butadiene126-99-84.8×10−4VOCStationary point; nonpoint industrial; nonpoint bulk terminals, petroleum, organic, and inorganic chemical storage ... 13-16.8×10−5VOCStationary point; waste disposal; nonpoint industrialalpha-chlorotoluene100-44-74.9×10−5VOCStationary point; nonpoint fuel combustion; waste disposalarsenic*7440-38-20.0043metal/metalloidOn-road light-duty nondiesel vehicles (running); nonpoint fuel combustion; nonpoint industrialbenzene*71-43-27.8×10−6VOCOn-road ... 06-22.65×10−5VOCCommercial cooking; stationary point; nonpoint industrialfluoranthene**,#206-44-04.8×10−5PAH/POMFires ( ...
Tópico(s): Environmental Justice and Health Disparities
2021 - National Institute of Environmental Health Sciences | Environmental Health Perspectives
Robin Kundis Craig, Anna M. Roberts,
... S. Clean Water Act does not directly regulate nonpoint source water pollution, it does provide mechanisms that prompt states to address nonpoint source water quality problems within their borders. This ... comparison, this Article examines the issue of prompting nonpoint source regulation from an international comparative perspective, focusing ... Australian states of Victoria and Queensland to address nonpoint source pollution and the potential lessons from the various U.S. states’ histories of nonpoint source regulation. Specifically, this Article’s examination of ...
Tópico(s): Environmental law and policy
2015 - | Boston College environmental affairs law review
... phosphorus have declined dramatically since the 1970s, but nonpoint-source pollution continues to pose a significant threat ... The principle source of phosphate and nitrogen is nonpoint-source pollution—the diffuse pollution from myriad inputs ... leach off farmed land generally contribute the most nonpoint-source nutrient pollution to U.S. waterways.10 Other nonpoint sources include stormwater runoff carrying lawn fertilizers and ... Furthermore, the law does not include regulation of nonpoint-source pollution.Section 303(d) of the Clean ...
Tópico(s): Marine and coastal ecosystems
2014 - National Institute of Environmental Health Sciences | Environmental Health Perspectives
Marc Ribaudo, Jeffrey Savage, John Talberth,
... sources. In impaired watersheds where both point and nonpoint sources contribute to pollution, the U.S. Environmental ... Agency (EPA) is encouraging the use of point‐nonpoint trading to reduce the cost of point sources to meet their permit requirement, and to encourage nonpoint sources to voluntarily contribute more towards meeting overall ... EPA guidance encourages trading programs to set a nonpoint source eligibility baseline that extracts some “extra” abatement from nonpoint sources. Research has shown that setting an eligibility ...
Tópico(s): Climate Change Policy and Economics
2014 - Wiley | Applied Economic Perspectives and Policy
Jinliang Huang, Qingsheng Li, Ling Huang, Zhifeng Zhang, Jingli Mu, Yaling Huang,
... approach was used to evaluate the land-based nonpoint source nutrients in the Bohai Sea Bay, which ... km. Loads and source apportionment of land-based nonpoint source nutrients from the 13 coastal cities, seven ... sub-sea areas were quantified. The land-based nonpoint source total nitrogen (TN) and total phosphorus (TP) ... and 12.5% of the total land-based nonpoint source TN and TP loads entering the Bohai ... sea integration was highlighted for managing land-based nonpoint source TN and TP loads entering the Bohai ...
Tópico(s): Groundwater and Isotope Geochemistry
2012 - Elsevier BV | Ocean & Coastal Management
... computer program, Better Assessment Science Integrating point and Nonpoint Sources (BASINS) (EPA 2001), which can be used ... model contaminant input to streams from point and nonpoint sources. These and other EPA modeling tools (such ... of the total load from point (WLA) and nonpoint (LA) sources exceeding the TMDL, or water quality ... decision may be to collect additional data on nonpoint source contaminant loads. The question is whether it ... collection effort. Given an initial assessment of the nonpoint source load and a proposed monitoring plan, the ...
Tópico(s): Water Quality and Pollution Assessment
2008 - Wiley | Journal of Contemporary Water Research & Education
Salina Parveen, R. L. Murphree, Lee Edmiston, Charles W. Kaspar, Kenneth M. Portier, Mark L. Tamplin,
... of 765 Escherichia coli isolates from point and nonpoint sources were collected from the Apalachicola National Estuarine ... antibiotics and higher MAR indices than isolates from nonpoint sources. Specifically, 65 different resistance patterns were observed among point source isolates, compared to 32 among nonpoint source isolates. Examples of this contrast in MAR ... versus 15.4 and 1.7%, respectively, for nonpoint source isolates. MAR profile homology, based on coefficient ... sources were markedly more diverse than isolates from nonpoint sources. Seven clusters were observed among point source ...
Tópico(s): Vibrio bacteria research studies
1997 - American Society for Microbiology | Applied and Environmental Microbiology
Abstract If stochastic nonpoint pollution loads create socially costly risk, then an economically optimal point/nonpoint trading ratio—the rate point source controls trade for nonpoint controls—is adjusted downward (a risk reward for nonpoint controls), encouraging more nonpoint controls. However, in actual trading programs, ratios are adjusted upward in response to nonpoint uncertainties (a risk premium for nonpoint controls). This contradiction is explained using a public ... and a trading market that encourages economically suboptimal nonpoint controls.
Tópico(s): Fiscal Policy and Economic Growth
2001 - Wiley | American Journal of Agricultural Economics
张亦涛 ZHANG Yitao, 刘宏斌 LIU Hongbin, 王洪媛 WANG Hongyuan, 翟丽梅 ZHAI Limei, 刘申 LIU Shen, 雷秋良 LEI Qiuliang, 任天志 REN Tianzhi,
... Author: Affiliation: Ministry of Agriculture Key Laboratory of Nonpoint Source Pollution Control/ Institute of Agricultural Resources and Regional Planning,Ministry of Agriculture Key Laboratory of Nonpoint Source Pollution Control/ Institute of Agricultural Resources and Regional Planning,Ministry of Agriculture Key Laboratory of Nonpoint Source Pollution Control/ Institute of Agricultural Resources and Regional Planning,Ministry of Agriculture Key Laboratory of Nonpoint Source Pollution Control/ Institute of Agricultural Resources and ...
Tópico(s): Soil and Water Nutrient Dynamics
2016 - Elsevier BV | Acta Ecologica Sinica
... water contaminated by human sewage outfalls.2 However, nonpoint pollution is also a major source of contamination ... bacterial indicators and the presence of sources of nonpoint pollution. Compared with point source pollution, nonpoint pollution sources are diffuse and heterogeneous, and they ... risk when relying on classic bacterial indicators. Importantly, nonpoint pollution can also contribute to high levels of ... in assessing the risk to swimmers posed by nonpoint pollution is selecting appropriate indicators. One microbial group ...
Tópico(s): Environmental Justice and Health Disparities
2006 - Lippincott Williams & Wilkins | Epidemiology
Stephen R. Carpenter, David W. Bolgrien, Richard C. Lathrop, Craig A. Stow, Tara Reed, Matthew Wilson,
Abstract The hypothesis that economic damage due to nonpoint pollution exceeds costs of mitigation can be tested ... and economic information to compare management scenarios for nonpoint pollution. Eutrophication of lakes caused by nonpoint phosphorus pollution, a common environmental problem, is the focus of our approach. Economic advantages of mitigating nonpoint pollution increase as the uncertainty of ecological predictions ... Uncertainty is measured by the prediction variance of nonpoint pollution models. A major source of variance in ...
Tópico(s): Economic and Environmental Valuation
1998 - Wiley | Australian Journal of Ecology
Carl F. Myers, James Meek, Stuart Tuller, Anne Weinberg,
THE water pollution generated by nonpoint sources, from a nationwide perspective, can appear over-whelming. The sheer size of the land area involved, the vast number of ... institutional considerations that come into play in managing nonpoint sources can lead to the feeling that the nonpoint problem is too big to address. But such ... the most important water quality problems caused by nonpoint sources. Second, to maximize the effectiveness of limited ... bodies where there is potential for improvement if nonpoint sources are controlled and where other sources will ...
Tópico(s): Water Quality and Pollution Assessment
1985 - Soil and Water Conservation Society | Journal of Soil and Water Conservation
Jun Ma, Huixian Gao, Changgao Cheng, Zhou Fang, Qin Zhou, Haiwei Zhou,
... chemical substances such as fertilizers and pesticides, agricultural nonpoint source pollution has surpassed industrial and urban residential pollution to become the number one contributor to nonpoint source pollution in China. Promoting farmers' participation in agricultural nonpoint source pollution management is a key link to ... key influencing factors of farmers' participation in agricultural nonpoint source pollution management. According to microsurvey data from ... the formation mechanism of their participation in agricultural nonpoint source pollution management behavior. The study shows that, ...
Tópico(s): Economic and Environmental Valuation
2023 - Elsevier BV | Agricultural Water Management
Huicai Yang, Guoqiang Wang, Yang Yan, Baolin Xue, Binbin Wu,
... to assess relationships between land use changes and nonpoint pollutant indexes upstream of the TGR. Results indicated ... with the adjusted parameters, could successfully reproduce the nonpoint indexes at the water quality monitoring sites in ... change types were shown to be sensitive to nonpoint pollutants in the study area. The land use ... and total phosphorus. An empirical regression equation between nonpoint indexes and different land use change types was ... of land use change types on changes in nonpoint pollutants over a long time period. The results ...
Tópico(s): Groundwater and Watershed Analysis
2014 - Hindawi Publishing Corporation | The Scientific World JOURNAL
... Science®Google Scholar Duda, A.M. 1993. Addressing nonpoint sources of water pollution must become an international ... T. Auer. 1993. Application of a GIS-based nonpoint source nutrient loading model for assessment of land ... Clausen. 1985. Land use monitoring and assessment for nonpoint source pollution control. p. 25–29. In Perspective on nonpoint source pollution. USEPA, Kansas City, MO. Google Scholar ... Smolen, and S.A. Dressing. 1987. Pollution from nonpoint sources: Where we are and where we should ...
Tópico(s): Atmospheric and Environmental Gas Dynamics
2013 - | SSSA special publication series
Jussi Lankoski, Markku Ollikainen,
... For example, in the Baltic Sea catchment area, nonpoint source loading represents 71% of nitrogen and 44 % ... wonder the need to develop policies to reduce nonpoint source nutrient loads has emerged. By the gradual ... agricultural policies targeting nutrient loads from point and nonpoint sources. The key means of the EU environmental ... Agricultural Policy (CAP) provides the basis for agricultural nonpoint source policies. CAP consists of partly decoupled farm ... Denmark, Finland, and Sweden have developed ambitious voluntary nonpoint source policies. Agri-environmental policies in the EU ...
Tópico(s): Agricultural Economics and Policy
2013 - Agricultural & Applied Economics Association | Choices
Yuhong Yang, Baixing Yan, Wanbin Shen,
... and to quantify the load, especially in modeling nonpoint source. In this study a revised model was established by integrating point and nonpoint sources into one-dimensional Streeter-Phelps (S-P) ... showed that COD loads of point source and nonpoint source were 134 958 t/yr and 86 ... respectively. NH3-N loads of point source and nonpoint source were 16 739 t/yr and 14 ... 02%, respectively. Point source pollution was stronger than nonpoint source pollution in the study area at present. ... identify pollution source and quantify point source and nonpoint source loads by calibrating and validating.
Tópico(s): Soil and Water Nutrient Dynamics
2010 - Science Press | Chinese Geographical Science
... an overall trend of deterioration in recent years. Nonpoint source pollution from agricultural and rural regions is the leading source of water pollution. The agricultural nonpoint source pollutants are mainly from fertilization of cropland, ... of daily living wastes in rural areas. Agricultural nonpoint sources contribute the main source of pollution to ... quality standard systems and practical legislative regulations, agricultural nonpoint source pollution will become one of the biggest ... society as a whole. The system for agricultural nonpoint source pollution control in China should include an ...
Tópico(s): Environmental and Agricultural Sciences
2006 - Pergamon Press | Water Science & Technology
Stephen R. Carpenter, N. F. Caraco, David L. Correll, Robert W. Howarth, Andrew N. Sharpley, V. H. Smith,
... ApplicationsVolume 8, Issue 3 p. 559-568 Article NONPOINT POLLUTION OF SURFACE WATERS WITH PHOSPHORUS AND NITROGEN ... further contributes as a source of N. These nonpoint inputs of nutrients are difficult to measure and ... caused by overenrichment with P and N; (2) nonpoint pollution, a major source of P and N ... eventually reaching aquatic ecosystems. If current practices continue, nonpoint pollution of surface waters is virtually certain to ... measures are capable of decreasing the flow of nonpoint P and N into surface waters. From our ...
Tópico(s): Soil and Water Nutrient Dynamics
1998 - Wiley | Ecological Applications
Stephen R. Crutchfield, David Letson, Arun Malik,
... the trading of pollution abatement between point and nonpoint sources. Point‐nonpoint trading would allow point sources to sponsor nonpoint source controls rather than install further controls of their own. If nonpoint source loadings are significant and the marginal costs ... difficulties particular to incentive policies such as point‐nonpoint trading and then screen coastal watersheds for those ... in emphasizing agriculture, the single largest cause of nonpoint source pollution. Our screening analysis provides an initial, ...
Tópico(s): Fiscal Policy and Economic Growth
1994 - Wiley | Water Resources Research
... measurable improvement in the lake condition because of nonpoint sources. So the objectives of this paper are to quantify the nonpoint sources and to assess theimpact to the lake. ... sources are unlikely to have been alteredsignificantly, but nonpoint nutrient inputs have great monthly variation. Contributionof nonpoint sources to the external input of total phosphorus ... in the dry season. Assuming that a substantial nonpoint source reductionis made by the Hoedong Lake basin, ... the lake waterquality by mass balance equation. The nonpoint source impact to Hoedong Lake waterquality is more ...
Tópico(s): Ecology and Conservation Studies
1993 - Pergamon Press | Water Science & Technology
Vladimír Novotný, G. Chesters,
... U.S. Environmental Protection Agency (EPA) concluded that nonpoint pollution was a leading cause of the nation' ... quality problems. Half of the states specified that nonpoint pollution was a significant water quality problem, and ... as the Chesapeake Bay, were particularly vulnerable to nonpoint pollution. Recognizing the need for a massive, federal nonpoint pollution cleanup program, the EPA administrator called for ... federal, state, local, and private resources to assess nonpoint source problems of national significance ( 45 ). Managers of ...
Tópico(s): Water Quality and Pollution Assessment
1989 - Soil and Water Conservation Society | Journal of Soil and Water Conservation
AGRICULTURAL nonpoint pollution is that aspect of soil erosion that everyone agrees is a policy problem. It happens off ... action. Even within the pollution control community, the nonpoint problem has currency. Nearly all regional offices of the U.S. Environmental Protection Agency (EPA) identify nonpoint pollution as their most difficult pollution problem. Nonpoint pollution involves far more than agriculture, of course. ... agriculture. But farms are a major source of nonpoint pollution. There is no real mystery about the ...
Tópico(s): Soil and Water Nutrient Dynamics
1985 - Soil and Water Conservation Society | Journal of Soil and Water Conservation
Noëlle Sarkis, Chloé Meymy, Olivier Geffard, Yves Souchon, A. Chandesris, M. Ferréol, Laurent Valette, Rémi Recoura-Massaquant, Jérémy Piffady, Arnaud Chaumot, Bertrand Villeneuve,
... point source industry density, point source road density, nonpoint source industry density, nonpoint source road density, nonpoint source urban density, nutrients and organic matter, slope, ... correlated positively with PAH bioavailable contamination. In contrast, nonpoint source urban density, nonpoint source industry density, nonpoint source road density and watershed size are positively ...
Tópico(s): Environmental Toxicology and Ecotoxicology
2021 - Elsevier BV | Water Research
Kurt Stephenson, Leonard Shabman,
... sources can reduce compliance costs by purchasing agricultural nonpoint source credits. Yet, such “point‐nonpoint” trades are rare. This article assesses the demand for agricultural nonpoint sources in well‐developed nutrient trading programs in ... agricultural lands. The lack of demand for agricultural nonpoint source credits can be attributed to a substantial ... legal setting that dampens regulated source demand for nonpoint source credits in Virginia is broadly representative of ...
Tópico(s): Climate Change Policy and Economics
2017 - Wiley | JAWRA Journal of the American Water Resources Association
Cuiyun Xiang, Yuan Wang, Huiwen Liu,
... is to make insights into certain characteristics of nonpoint source pollution research, and consequently to show the ... E and SSCI databases, 3246 journal articles on nonpoint source pollution were retrieved from 2001 to 2015. Nonpoint source pollution research maintained steady growth in the ... word and reference co-citation analysis by Citespace, nonpoint source pollution research includes multiple areas (control measures, ... research regions and technologies). And future researches on nonpoint source pollution will likely focus on SWAT application, ...
Tópico(s): Environmental Impact and Sustainability
2016 - Elsevier BV | Ecological Engineering
Yu Wang, Jianmin Bian, Sining Wang, Jie Tang, Fei Ding,
... the SWAT model's snowmelt parameters by simulating nonpoint source pollution in the source area of the ... the simulation were adjusted.The exports rule of nonpoint source pollution for the spring snowmelt period was ... SWAT model had good performance simulating the seasonal nonpoint source pollution with large snowmelt.According to the ... rainfall and snowmelt is a main driver of nonpoint source pollution in the cold area, and that ... study provides a new and suitable method of nonpoint source pollution simulation for the cold areas.
Tópico(s): Hydrology and Watershed Management Studies
2016 - HARD Publishing Company | Polish Journal of Environmental Studies
Kurt Stephenson, Stephen Aultman, Todd Metcalfe, Alex Miller,
... in the United States frequently assume that agricultural nonpoint sources will be the primary trading partner for ... new nutrient discharges. Nutrient offsets generated by agricultural nonpoint source reductions are compared against urban nonpoint source and nutrient assimilation offsets. Evidence suggests that agricultural nonpoint source offsets may not be a technically feasible ...
Tópico(s): Water resources management and optimization
2010 - Wiley | Water Resources Research