Atrazine

Also known as: Atrex, Atranex, Gesaprim, Primatol, Purge, Vectro SC, Cristina
Chemical reference number (CAS): 1912-24-9

Atrazine is a white crystal solid. Farmers have used it widely as a weed killer on corn fields since the early 1960s. In 1985, 77% of the acres of field corn and 49% of the acres of sweet corn in Wisconsin were treated with atrazine.

A recent survey of rural Wisconsin wells found widespread atrazine contamination. In most cases, the amounts detected did not pose a serious risk to health. However, the Wisconsin Department of Agriculture, Trade and Consumer Protection has taken action to reduce atrazine use to prevent any more groundwater contamination.

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Last Revised: April 19, 2016