FREE: New research indicating more concerns about air quality from frac sand mining. Dr. Crispin Pierce's study was published in the Journal of Environmental Health last month.
Dec. 4, 2015 - Wis. Public Radio: A University of Wisconsin-Eau Claire professor (Dr. Crispin Pierce) has published a study investigating air quality near frac sand mines. The results suggests there are higher levels of harmful, microscopic particles in the air near active mining sites. Full story HERE