Category Archives: pesticide concentrations

Levels of several pesticides declining in salmon-bearing streams

OLYMPIA — Pesticide concentrations have declined over the past decade in several salmon-bearing streams in Washington, according to results of water quality monitoring conducted by the Washington state departments of Agriculture (WSDA) and Ecology. In addition, when detected, scientists found that most pesticides showed up at concentrations below levels of concern for aquatic species. READ MORE
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