First-of-its-kind interactive map brings together 40 years of water quality data.
April 5, 2017
2 Min Read
A new USGS interactive map provides a long-term look at changes in the quality of our nation’s rivers and streams, using data from over 70 organizations. Go online and see how 51 water-quality metrics and 38 aquatic-life metrics at nearly 1,400 sites have changed over the last 40 years.(Public domain.)
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