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- Title
Occurrence and Distribution of Sulfonylurea and Related Herbicides in Central Canadian Surface Waters 2006-2008.
- Authors
Struger, John; Grabuski, Josey; Cagampan, Steve; Rondeau, Myriam; Sverko, Ed; Marvin, Chris
- Abstract
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.
- Subjects
CANADA; HERBICIDE toxicology; SULFONYLUREAS; WATER pollution; PESTICIDE content of water; CROP rotation; STATISTICAL sampling
- Publication
Bulletin of Environmental Contamination & Toxicology, 2011, Vol 87, Issue 4, p420
- ISSN
0007-4861
- Publication type
Article
- DOI
10.1007/s00128-011-0361-5