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Home NEWS Science News Health

Road salts could endanger ecosystems, water supplies

Bioengineer by Bioengineer
February 13, 2019
in Health
Reading Time: 2 mins read
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Lakes, rivers and some private wells are becoming saltier, largely thanks to high levels of road salt sprinkled on streets during winter. According to an article in Chemical & Engineering News (C&EN), the weekly newsmagazine of the American Chemical Society, this situation could cause harm to wildlife and humans.

Contributing editor Deirdre Lockwood notes that scientists have found greatly increased amounts of chloride in streams, lakes and rivers over the last few decades. One of the biggest culprits is salt that’s deposited onto roads before and during snowstorms. The amount used in the U.S. has grown dramatically from about 4,500 metric tons in the early 1940s to 22 million metric tons now. But salt also comes from sewage, fertilizer runoff, mining operations and deteriorating structures. Not only does all of this salt makes water taste bad, it can corrode plumbing and cause health concerns. It also can affect freshwater organisms and disrupt ecosystems.

Some scientists are calling for the U.S. Environmental Protection Agency to start regulating salts. Others are simply trying to bring more attention to this issue. And some municipalities are already implementing changes. In Madison, Wisconsin, crews apply brine, about a 20 percent salt water solution, onto roads before a snowstorm hits. With this approach, they have used about 70 percent less road salt. And the village of Lake George, New York, has reduced road salt application by about 30 percent with brine treatment and new, more effective snow plows.

###

The article, “For healthier lakes, rivers, and drinking water, hold the salt,” is freely available here.

The American Chemical Society, the world’s largest scientific society, is a not-for-profit organization chartered by the U.S. Congress. ACS is a global leader in providing access to chemistry-related information and research through its multiple databases, peer-reviewed journals and scientific conferences. ACS does not conduct research, but publishes and publicizes peer-reviewed scientific studies. Its main offices are in Washington, D.C., and Columbus, Ohio.

To automatically receive news releases from the American Chemical Society, contact [email protected].

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Katie Cottingham
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Tags: AgricultureChemistry/Physics/Materials SciencesMarine/Freshwater BiologyPollution/RemediationPopulation BiologyPublic HealthTransportation/Travel
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