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Pesticides in Surface Drinking-Water Supplies of the Northern Great Plains
BACKGROUND: Human health anomalies have been associated with pesticide exposure for people living in rural landscapes in the northern Great Plains of North America. OBJECTIVE: The objective of this study was to investigate the occurrence of 45 pesticides in drinking water from reservoirs in this are...
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Formato: | Texto |
Lenguaje: | English |
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National Institute of Environmental Health Sciences
2007
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC1940079/ https://www.ncbi.nlm.nih.gov/pubmed/17687445 http://dx.doi.org/10.1289/ehp.9435 |
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author | Donald, David B. Cessna, Allan J. Sverko, Ed Glozier, Nancy E. |
author_facet | Donald, David B. Cessna, Allan J. Sverko, Ed Glozier, Nancy E. |
author_sort | Donald, David B. |
collection | PubMed |
description | BACKGROUND: Human health anomalies have been associated with pesticide exposure for people living in rural landscapes in the northern Great Plains of North America. OBJECTIVE: The objective of this study was to investigate the occurrence of 45 pesticides in drinking water from reservoirs in this area that received water primarily from snowmelt and rainfall runoff from agricultural crop lands. METHODS: Water from 15 reservoirs was sampled frequently during the spring pesticide application period (early May to mid-August) and less frequently for the remainder of the year. Drinking water was sampled in early July. Sample extracts were analyzed for pesticide content using mass spectrometric detection. RESULTS: We detected two insecticides and 27 herbicides in reservoir water. Consistent detection of a subset of 7 herbicides suggested that atmospheric deposition, either directly or in rain, was the principal pathway from fields to the reservoirs. However, the highest concentrations and number of herbicides in drinking water were associated with runoff from a localized 133-mm rainfall over 15 days toward the end of spring herbicide application. Water treatment removed from 14 to 86% of individual herbicides. Drinking water contained 3–15 herbicides (average, 6.4). CONCLUSIONS: We estimated the mean annual calculated concentration of herbicides in drinking water to be 75 ng/L (2,4-dichlorophenoxy)acetic acid, 31 ng/L (2-chloro-4-methylphenoxy)acetic acid, 24 ng/L clopyralid, 11 ng/L dichlorprop, 4 ng/L dicamba, 3 ng/L mecoprop, and 1 ng/L bro-moxynil. The maximum total concentration of herbicides in drinking water was 2,423 ng/L. For the seven herbicides with established drinking water guidelines, all concentrations of the individual chemicals were well below their respective guideline. However, guidelines have not been established for the majority of the herbicides found in drinking water or for mixtures of pesticides. |
format | Text |
id | pubmed-1940079 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2007 |
publisher | National Institute of Environmental Health Sciences |
record_format | MEDLINE/PubMed |
spelling | pubmed-19400792007-08-08 Pesticides in Surface Drinking-Water Supplies of the Northern Great Plains Donald, David B. Cessna, Allan J. Sverko, Ed Glozier, Nancy E. Environ Health Perspect Research BACKGROUND: Human health anomalies have been associated with pesticide exposure for people living in rural landscapes in the northern Great Plains of North America. OBJECTIVE: The objective of this study was to investigate the occurrence of 45 pesticides in drinking water from reservoirs in this area that received water primarily from snowmelt and rainfall runoff from agricultural crop lands. METHODS: Water from 15 reservoirs was sampled frequently during the spring pesticide application period (early May to mid-August) and less frequently for the remainder of the year. Drinking water was sampled in early July. Sample extracts were analyzed for pesticide content using mass spectrometric detection. RESULTS: We detected two insecticides and 27 herbicides in reservoir water. Consistent detection of a subset of 7 herbicides suggested that atmospheric deposition, either directly or in rain, was the principal pathway from fields to the reservoirs. However, the highest concentrations and number of herbicides in drinking water were associated with runoff from a localized 133-mm rainfall over 15 days toward the end of spring herbicide application. Water treatment removed from 14 to 86% of individual herbicides. Drinking water contained 3–15 herbicides (average, 6.4). CONCLUSIONS: We estimated the mean annual calculated concentration of herbicides in drinking water to be 75 ng/L (2,4-dichlorophenoxy)acetic acid, 31 ng/L (2-chloro-4-methylphenoxy)acetic acid, 24 ng/L clopyralid, 11 ng/L dichlorprop, 4 ng/L dicamba, 3 ng/L mecoprop, and 1 ng/L bro-moxynil. The maximum total concentration of herbicides in drinking water was 2,423 ng/L. For the seven herbicides with established drinking water guidelines, all concentrations of the individual chemicals were well below their respective guideline. However, guidelines have not been established for the majority of the herbicides found in drinking water or for mixtures of pesticides. National Institute of Environmental Health Sciences 2007-08 2007-05-15 /pmc/articles/PMC1940079/ /pubmed/17687445 http://dx.doi.org/10.1289/ehp.9435 Text en http://creativecommons.org/publicdomain/mark/1.0/ Publication of EHP lies in the public domain and is therefore without copyright. All text from EHP may be reprinted freely. Use of materials published in EHP should be acknowledged (for example, ?Reproduced with permission from Environmental Health Perspectives?); pertinent reference information should be provided for the article from which the material was reproduced. Articles from EHP, especially the News section, may contain photographs or illustrations copyrighted by other commercial organizations or individuals that may not be used without obtaining prior approval from the holder of the copyright. |
spellingShingle | Research Donald, David B. Cessna, Allan J. Sverko, Ed Glozier, Nancy E. Pesticides in Surface Drinking-Water Supplies of the Northern Great Plains |
title | Pesticides in Surface Drinking-Water Supplies of the Northern Great Plains |
title_full | Pesticides in Surface Drinking-Water Supplies of the Northern Great Plains |
title_fullStr | Pesticides in Surface Drinking-Water Supplies of the Northern Great Plains |
title_full_unstemmed | Pesticides in Surface Drinking-Water Supplies of the Northern Great Plains |
title_short | Pesticides in Surface Drinking-Water Supplies of the Northern Great Plains |
title_sort | pesticides in surface drinking-water supplies of the northern great plains |
topic | Research |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC1940079/ https://www.ncbi.nlm.nih.gov/pubmed/17687445 http://dx.doi.org/10.1289/ehp.9435 |
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