Factors influencing the occurrence and distribution of neonicotinoid insecticides in surface waters of southern Ontario, Canada
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- 作者：John Struger ; john.struger@canada.ca ; Josey Grabuski ; Steve Cagampan ; Ed Sverko ; Daryl McGoldrick ; Christopher H. Marvin
- 关键词：Neonicotinoid insecticides ; Imidacloprid ; Thiamethoxam ; Clothianidin ; Surface water ; Water quality guidelines
- 刊名：Chemosphere
- 出版年：2017
- 出版时间：February 2017
- 年：2017
- 卷：169
- 期：Complete
- 页码：516-523
- 全文大小：1373 K
- 卷排序：169
文摘
Conducted a survey of neonicotinoids used in full range of agricultural activities in surface waters of Ontario. Statistical correlation of individual compounds with land use was investigated. Relationship between neonicotinoid occurrence and hydrology of water courses was assessed. Imidacloprid, clothianidin, and thiamethoxam detection frequency over 90% at over half the sites sampled. At 2 sites, the Canadian freshwater guideline value for imidacloprid (230 ng/L) was exceeded in 75% of samples.