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The Conversation USA

The Conversation USA

Can road salt and other pollutants disrupt our circadian rhythms?

  • Written by Jennifer Marie Hurley, Assistant Professor of Biological Sciences, Rensselaer Polytechnic Institute
imageSalting streets in Milwaukee.Michael Pereckas, CC BY-SA

Every winter, local governments across the United States apply millions of tons of road salt to keep streets navigable during snow and ice storms. Runoff from melting snow carries road salt into streams and lakes, and causes many bodies of water to have extraordinarily high salinity.

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