The physical dangers to recreationists at abandoned mine sites are well known, but the hazards associated with exposure to heavy metals in dust at abandoned mine sites are not well understood. This pilot study identified contaminants of concern at popular recreation areas around Downieville, Nevada City, and Foresthill, CA.
More details about The Sierra Fund’s Recreational Trails and Abandoned Mines Assessment project.
The Full Report of this scientific study.
The Executive Summary of this scientific study.