Environmental experts voice concern on road salt pollution in Minnesota waterways as snow melts
Experts say in a recent study, U of M researchers - using purchasing records - found about 250,000 tons of road salt are used in the metro every year. The same study back in 2009 found about 365,000 tons were used per year, a drop of 115,000 tons.
Thompson Lake United States University Of Minnesota Candy Erickson Brooke Asleson Minnesota Pollution Control Agency
Source: kstp.com