Bee-Killing Pesticides Found in Midwest Rivers

Pesticides linked to declining bee and bird populations have been found in streams across the upper Midwest, raising yet more concerns about these chemicals’ environmental effects.

Researchers from the United States Geological Survey tested waters at nine sites in Iowa and Nebraska. They found neonicotinoids in each, frequently at levels that may harm insects and the life that depends on them.

“This wasn’t a toxicity study, but there’s research out there indicating that these concentrations could be of concern,” said USGS chemist Michelle Hladik, lead author of the paper describing the survey in the journal Environmental Pollution.

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