March 03, 2016

Driveway pavement sealers- Make a greener choice

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 have been identified as "reasonably anticipated human carcinogens", meaning they could cause cancer in humans and make pets sick.

March 03, 2016

Coal-Tar-Based Pavement Sealcoat, Polycyclic Aromatic Hydrocarbons (PAHs), and Environmental Health

Studies by the U.S. Geological Survey (USGS) have identified coal-tar-based sealcoat—the black, viscous liquid sprayed or painted on asphalt pavement such as parking lots—as a major source of polycyclic aromatic hydrocarbon (PAH) contamination in urban areas for large parts of the Nation. Several PAHs are suspected human carcinogens and are toxic to aquatic life. Sealcoat is the black, viscous liquid sprayed or painted on the asphalt pavement of many parking lots, driveways, and playgrounds.

March 03, 2016

Changed Empire State of Mind Toward Coal Tar Sealers

Last May the nation's fourth largest state with billions of dollars in pavement assets, in the midst of a statewide legislative debate on coal tar sealers and on the heels of the Tonawanda Coke decision quietly put into place an alternative sealer specification which calls on state agencies to use "where such products meet form function and utility requirements, to the maximum extent practicable, affected entities shall purchase alternative-based sealers."

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