Clean Wisconsin Calls on DNR to Set Limits on Silica
Asks agency to set limits, monitor this carcinogen MADISON — Today, Clean Wisconsin asked the Wisconsin Department of Natural Resources (DNR) to classify crystalline silica a “hazardous air pollutant” and to monitor how much of this carcinogenic toxin is being released into Wisconsin’s air. “There are at least 375 sources of this dangerous toxin in Wisconsin,