Scientists testing alternative to road salt to protect water
March 22, 2020
DULUTH, Minn. (AP) — Researchers in Minnesota are trying to find an alternative to road salt in an effort to protect the state's water bodies from contamination.
The Minneapolis Star Tribune reported Saturday that road salt is the top source of chloride in state waters. Scientists have been ramping up warnings that rising chloride levels could harm aquatic life and turn tap water salty.
Fifty water bodies across the state fail to meet the Pollution Control Agency's water-quality standards because they contain too much chloride. And once salt gets into a water body it's difficult to remov...