USGS scientist collecting a water sample from Boulder Creek, Colorado.

USGS scientist collecting a water sample from Boulder Creek, Colorado.

Detailed Description

A USGS scientist collecting a water-quality sample from Boulder Creek, Colorado. USGS scientists have shown that many chemicals discharged from municipal wastewater treatment facilities persist for miles downstream at levels known, or suspected, to cause adverse health impacts to aquatic organisms—including endocrine disruption in fish. Photo credit: Jennifer Beck, USGS.

Details

Image Dimensions: 1688 x 1466

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