Coal-Tar-Based Pavement Seal Coat, Polycyclic AromaticHydrocarbons (PAHs), and Environmental Health

U.S. Department of the Interior U.S. Geological Survey Fact Sheet 2011–3010 February 2011 Coal-Tar-Based Pavement Seal Coat, Polycyclic AromaticHydrocarbons (PAHs), and Environmental Health Key Findings • Dust from pavement with coal-tar-based seal coat has greatly elevated PAH concentrations compared to dust from unsealed pavement.• Coal-tar-based seal coat is the largest source of PAH contamination to 40 urban lakes[…]

Driveway Pavement Sealers Make a Greener Choice

Environmental and health issues with coal tar-based pavement sealers Driveway sealers containing coal tar have been used for decades to protect asphalt driveways and keep them looking “new” or uniformly black. Coal tar-based sealcoat products contain high levels of polycyclic aromatic hydrocarbons (PAHs) which can be inhaled or ingested from dust or small particles. PAHs[…]