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Road Salt Leading to Rising Chloride Levels in Streams, Study Finds

Road Salt

Story at-a-glance -

  • Chloride levels increased substantially in 84 percent of US urban streams tested, largely as a result of de-icing activity on roadways
  • Elevated chloride levels may inhibit plant growth, impair reproduction in marine life and reduce the diversity of organisms in streams
  • Moose, elk, and birds may also be harmed by salt on roadways, and even soil health is adversely impacted

By Dr. Mercola

Every winter, the US spends more than $2 billion to remove snow and ice from roadways, a cost that includes over 15 million tons of salt. Salt is effective and efficient, as it lowers the freezing temperature of water, making it more difficult for ice to develop and accelerating melting.


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