"As winter sets in across the northern United States, the road salt that keeps people out of ditches is flowing into rivers at levels that could harm fish and other creatures. With billions of pounds of salt spread on U.S. roads every year, researchers say that rivers, streams and lakes in the nation’s wintry cities are getting saltier. And, according to new research, the salt, or sodium chloride, in rivers remains toxic not just in winter, but throughout two-thirds of the year."
"Rivers in Wintry Cities Remain Salty Year-Round"
Source: EHN, 12/19/2013