New doubts cast on safety of common driveway sealant
http://www.latimes.com/health/ct-met-toxic-coal-tar-sealant-20110115,0,5561376.story
"Extremely high levels of toxic chemical in coal tar found in booming suburb"
http://www.latimes.com/health/ct-met-toxic-coal-tar-sealant-20110115,0,5561376.story
"Extremely high levels of toxic chemical in coal tar found in booming suburb"
