Title: MAGNITUDE AND PERSISTENCE OF HERBICIDE RESIDUES IN FARM DUGOUTS AND PONDS IN THE CANADIAN PRAIRIES
Abstract: Environmental Toxicology and ChemistryVolume 16, Issue 4 p. 638-643 Environmental Chemistry Magnitude and persistence of herbicide residues in farm dugouts and ponds in the Canadian prairies Raj Grover, Raj Grover Agriculture&Agri-Food Canada, Research Station, Regina, Saskatchewan S4P 3A2, CanadaSearch for more papers by this authorDon T. Waite, Corresponding Author Don T. Waite Environment Canada, 300–2365 Albert Street, Regina, Saskatchewan S4P 4K1, CanadaEnvironment Canada, 300–2365 Albert Street, Regina, Saskatchewan S4P 4K1, CanadaSearch for more papers by this authorAllan J. Cessna, Allan J. Cessna Agriculture&Agri-Food Canada, Research Station, Regina, Saskatchewan S4P 3A2, CanadaSearch for more papers by this authorWally Nicholaichuk, Wally Nicholaichuk National Hydrology Research Center, Saskatoon, Saskatchewan S7N 3H5, CanadaSearch for more papers by this authorDon G. Irvin, Don G. Irvin Toxicology Research Center, University of Saskatchewan, Saskatoon, Saskatchewan S7N 0W0, CanadaSearch for more papers by this authorLorne A. Kerr, Lorne A. Kerr Agriculture&Agri-Food Canada, Research Station, Regina, Saskatchewan S4P 3A2, CanadaSearch for more papers by this authorKelly Best, Kelly Best National Hydrology Research Center, Saskatoon, Saskatchewan S7N 3H5, CanadaSearch for more papers by this author Raj Grover, Raj Grover Agriculture&Agri-Food Canada, Research Station, Regina, Saskatchewan S4P 3A2, CanadaSearch for more papers by this authorDon T. Waite, Corresponding Author Don T. Waite Environment Canada, 300–2365 Albert Street, Regina, Saskatchewan S4P 4K1, CanadaEnvironment Canada, 300–2365 Albert Street, Regina, Saskatchewan S4P 4K1, CanadaSearch for more papers by this authorAllan J. Cessna, Allan J. Cessna Agriculture&Agri-Food Canada, Research Station, Regina, Saskatchewan S4P 3A2, CanadaSearch for more papers by this authorWally Nicholaichuk, Wally Nicholaichuk National Hydrology Research Center, Saskatoon, Saskatchewan S7N 3H5, CanadaSearch for more papers by this authorDon G. Irvin, Don G. Irvin Toxicology Research Center, University of Saskatchewan, Saskatoon, Saskatchewan S7N 0W0, CanadaSearch for more papers by this authorLorne A. Kerr, Lorne A. Kerr Agriculture&Agri-Food Canada, Research Station, Regina, Saskatchewan S4P 3A2, CanadaSearch for more papers by this authorKelly Best, Kelly Best National Hydrology Research Center, Saskatoon, Saskatchewan S7N 3H5, CanadaSearch for more papers by this author First published: 26 October 2009 https://doi.org/10.1002/etc.5620160406Citations: 29Read the full textAboutPDF ToolsRequest permissionExport citationAdd to favoritesTrack citation ShareShare Give accessShare full text accessShare full-text accessPlease review our Terms and Conditions of Use and check box below to share full-text version of article.I have read and accept the Wiley Online Library Terms and Conditions of UseShareable LinkUse the link below to share a full-text version of this article with your friends and colleagues. Learn more.Copy URL Abstract Farm ponds or dugout waters were monitored for residues of seven major herbicides used in the Canadian prairies from fall of 1987 to spring of 1989. The frequencies of confirmed detection of herbicides in water samples, depending on the time of sampling, in decreasing order were: 2,4-dichlorophenoxyacetic acid (2,4-D; 93–100%), diclofop (46–95%), bromoxynil (50–85%), 4-chloro-2-methyl-phenoxyacetic acid (MCPA; 33–70%), triallate (28–63%), dicamba (17–55%), and trifluralin (0–18%). The corresponding frequencies of quantifiable residues (≥0.05 μg/L) were lower, ranging from 75 to 86% for 2,4-D to 0 to 7% for dicamba. Median residues in all water samples were near or below the quantification limits of 0.05 μg/L. Maximum residues varied widely and were (μg/L): trifluralin (not detectable [ND]–0.11), bromoxynil (0.27–0.33), dicamba (ND–11.2), triallate (0.05–0.87), MCPA (0.12–1.97), 2,4-D (0.64–2.67), and diclofop (0.27–3.47). Maximum residues were seasonal and declined to near or below detection limits by the following sampling time. Median values were two to three orders of magnitude less than the corresponding maximum allowable concentration and interim maximum allowable concentration guidelines for drinking water in Canada and the United States. Maximum values were also less than these guidelines. Only the maximum values for residues of MCPA and 2,4-D approached the guidelines for these herbicides in water used for irrigation. Citing Literature Volume16, Issue4April 1997Pages 638-643 RelatedInformation
Publication Year: 1997
Publication Date: 1997-01-01
Language: en
Type: article
Indexed In: ['crossref']
Access and Citation
Cited By Count: 1
AI Researcher Chatbot
Get quick answers to your questions about the article from our AI researcher chatbot