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HERO ID
1280599
Reference Type
Journal Article
Title
Occurrence of glyphosate in surface waters of Southern Ontario
Author(s)
Struger, J; Thompson, D; Staznik, B; Martin, P; Mcdaniel, T; Marvin, C
Year
2008
Is Peer Reviewed?
Yes
Journal
Bulletin of Environmental Contamination and Toxicology
ISSN:
0007-4861
EISSN:
1432-0800
Volume
80
Issue
4
Page Numbers
378-384
Language
English
PMID
18320130
DOI
10.1007/s00128-008-9373-1
Abstract
Glyphosate in surface waters of southern Ontario (Canada) was studied over a 2-year period. A small percentage of samples exhibited glyphosate concentrations greater than the analytical limit of quantitation (17 microg a.e./L), and the maximum concentration of glyphosate measured was 40.8 microg/L. No samples of roughly 500 analyzed exceeded the Canadian Water Quality Guideline of 65 microg a.e./L considered protective of aquatic life. Typical concentrations of glyphosate in amphibian habitats were well below a range of toxicity thresholds for aquatic organisms, and were thus judged to be unlikely to pose a substantial risk to either sensitive amphibian larvae or other aquatic biota.
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