Occurrence and Distribution of Sulfonylurea and Related Herbicides in Central Canadian Surface Waters 2006–2008

Surface water sampling in 2006–2008 measured the occurrence of sulfonylureas and related herbicides (SUs) during base flow conditions and wet weather events. Flumetsulam (29.2%), diuron (36.5%) and fomesafen (25.3%) were most frequently detected over the course of the study. Typical SU concentration...

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Bibliographic Details
Published in:Bulletin of environmental contamination and toxicology 2011-10, Vol.87 (4), p.420-425
Main Authors: Struger, John, Grabuski, Josey, Cagampan, Steve, Rondeau, Myriam, Sverko, Ed, Marvin, Chris
Format: Article
Language:English
Subjects:
Aquatic Pollution
Base flow
Benzamides - analysis
Canada
Corn
Crops
Diuron
Diuron - analysis
Earth and Environmental Science
Ecotoxicology
Environment
Environmental Chemistry
Environmental Health
Environmental Monitoring
Fresh Water - chemistry
Herbicides
Herbicides - analysis
Linuron - analysis
Pesticides
Pollution
Pyrimidines - analysis
Scientific imaging
Soil Science & Conservation
Soybeans
Sulfonamides - analysis
Sulfonylurea Compounds - analysis
Surface water
Waste Water Technology
Water analysis
Water Management
Water Pollutants, Chemical - analysis
Water Pollution Control
Water Pollution, Chemical - statistics & numerical data
Water sampling
Wheat
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Summary:Surface water sampling in 2006–2008 measured the occurrence of sulfonylureas and related herbicides (SUs) during base flow conditions and wet weather events. Flumetsulam (29.2%), diuron (36.5%) and fomesafen (25.3%) were most frequently detected over the course of the study. Typical SU concentrations were in the low parts per trillion range; however, maximum concentrations of fomesafen (873 ng/L), linuron (856 ng/L) and diuron (2,900 ng/L) approached or exceeded 1 μg/L. The temporal trend in SUs showed a correlation with application periods. In general, detections of SUs were more frequent where rotation of row crops was more intense. Sampling during wet-weather events indicated potential for a range of SUs to be flushed into surface waters at relatively high concentrations.
ISSN:0007-4861
1432-0800
DOI:10.1007/s00128-011-0361-5