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Contact: Alex Demas
United States Geological Survey

Study Site Map

Caption: These are locations of sites in Iowa sampled for neonicotinoids in 2013. Watersheds for the Mississippi River and Missouri River sites are shown in the inset.

Credit: USGS

Usage Restrictions: None

Related news release: Corn and soy insecticides similar to nicotine found widespread in Midwest rivers -- USGS news

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