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| Web URL(s): | https://dl.sciencesocieties.org/publications/jeq/articles/33/2/419
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| Publication Type:
| Refereed |
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| Author(s): | Schulz, Ralf |
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| Author Affiliation: | Zoological Institute, Technical University, Braunschweig, Germany |
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| Title: | Field studies on exposure, effects, and risk mitigation of aquatic nonpoint-source insecticide pollution: A review |
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| Section: | Reviews and analysis
Other records with the "Reviews and analysis" Section
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| Source: | Journal of Environmental Quality. Vol. 33, No. 2, March/April 2004, p. 419-448. |
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| Publishing Information: | Madison, Wisconsin: American Society of Agronomy, Crop Science Society of America, and Soil Science Society of America |
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| # of Pages: | 30 |
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| Keywords: | TIC Keywords: Insecticides; Pollution; Environmental pollution; Water pollution; Contamination; Surface runoff; Chemical exposure; Aquatic organisms; Pesticides; Irrigation; Toxicity; Risk assessment; Invertebrates; Application rates; Wetlands; Watersheds
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| Abstract/Contents: | "Recently, much attention has been focused on insecticides as a group of chemicals combining high toxicity to invertebrates and fishes with low application rates, which complicates detection in the field. Assessment of these chemicals is greatly facilitated by the description and understanding of exposure, resulting biological effects, and risk mitigation strategies in natural surface waters under field conditions due to normal farming practice. More than 60 reports of insecticide-compound detection in surface waters due to agricultural nonpoint-source pollution have been published in the open literature during the past 20 years, about one-third of them having been undertaken in the past 3.5 years. Recent reports tend to concentrate on specific routes of pesticide entry, such as runoff, but there are very few studies on spray drift-borne contamination. Reported aqueous-phase insecticide concentrations are negatively correlated with the catchment size and all concentrations of >10μg/L (19 out of 133) were found in smaller-scale catchments (<100 km2). Field studies on effects of insecticide contamination often lack appropriate exposure characterization. About 15 of the 42 effect studies reviewed here revealed a clear relationship between quantified, non-experimental exposure and observed effects in situ, on abundance, drift community structure, or dynamics. Azinphos-methyl, chlorpyrifos, and endosulfan were frequently detected at levels above those reported to reveal effects in the field; however, knowledge about effects of insecticides in the field is still sparse. Following a short overview of various risk mitigation or best management practices, constructed wetlands and vegetated ditches are described as a risk mitigation strategy that have only recently been established for agricultural insecticides. Although only 11 studies are available, the results in terms of pesticide retention and toxicity reduction are very promising. Based on the reviewed literature, recommendations are made for future research activities." |
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| Language: | English |
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| References: | 283 |
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| Note: | Graphs
Tables |
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| ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete):
Schulz, R. 2004. Field studies on exposure, effects, and risk mitigation of aquatic nonpoint-source insecticide pollution: A review. J. Environ. Qual. 33(2):p. 419-448. |
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| Web URL(s):
https://dl.sciencesocieties.org/publications/jeq/articles/33/2/419
Last checked: 11/07/2016
Access conditions: Item is within a limited-access website
https://dl.sciencesocieties.org/publications/jeq/pdfs/33/2/419
Last checked: 11/08/2016
Requires: PDF Reader
Access conditions: Item is within a limited-access website |
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MSU catalog number: S 900 .J6 |
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