New scoring scale tracks the harmful effects of salt pollution in freshwater streams and rivers

Read the full story from the University of Maryland.

A new study sheds light on how salinization from winter road salt combined with other pollutants creates ‘chemical cocktails’ that can jeopardize the ecological balance of waterways, including those in the Washington, D.C. area. The researchers developed a new five-stage scale (Stage 0-IV) to track the progression of this damage, a tool that could inform public policy in the future. Parts of the Potomac, the Anacostia and Rock Creek waterways are in Stage III on the scale for at least part of the year.

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