A professional applies coal-tar-based seal coat to a test plot used to measure emission of polycyclic aromatic carbons into the air. PETE VAN METRE, USGS
Playground and Driveway Sealer Can Damage DNA
DISCOVERY NEWS | APRIL 28, 2015
http://pulse.me/s/3WKAVq
Run-off from coal-tar based sealants are hazardous to marine life, new government studies find, and can damage DNA and the ability to repair the damage. Continue reading → read more