Source: Adam Allington, BLOOMBERG NEWS, 2/5/18


A class of pesticide linked to declining populations of bees was found year-round in major tributaries to the Great Lakes, and some scientists say the finding suggests the substances also could pose a danger to fish, birds, and aquatic insects.
A recent study by the U.S. Geological Survey detected neonicotinoid pesticides in 10 Great Lakes tributaries throughout the year, although the levels were highest during the growing season. The study is the first to gather a year’s worth of field data on levels of the insecticides in major waterways...

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