Scientists have discovered an overall improvement in the amount of pesticides flowing in Washington State streams….State Agriculture officials said pesticide concentrations declined over the past decade in salmon bearing streams. They also said most were below levels of concern. But they did find 10 of the 74 pesticides they test for were increasing in concentrations.
Gary Chittim reports.
http://www.king5.com/news/local/Study-shows-streams-pesticide-improvements199062471.html