About half the nation’s streams are polluted by pesticides at a level of concern for aquatic life.
90 percent of urban streams show signs of contamination
Staff Report
FRISCO — A huge number of rivers and streams around the country are still polluted with pesticides that can kill bugs and other aquatic organisms at the base of the food chain.
Streams in agricultural areas are polluted at about the same level as they were 1990s, but pesticide pollution is increasing in urban streams, according to a U.S. Geological Survey study spanning about 20 years.