Some banned pesticides fade from Great Lakes air, while others persist
Two recently banned pesticides have all but disappeared from the atmosphere around the Great Lakes, while others phased out decades ago are still hanging around.
Marta Venier, an environmental chemist at Indiana University, and her team looked at air samples taken every 12 days since 1990 by the Environmental Protection Agency around the Great Lakes region, which measure the atmospheric concentration of hundreds of compounds, including pesticides, PCBs, and other persistent chemicals.