This week state environmental officials will publish, online, the first complete list of chemicals being used to hydraulically fracture natural gas wells in Pennsylvania.
The list was compiled using information drilling companies are required to provide.
Compounds associated with neurological problems or other serious health effects are on the list.
Environmentalists are concerned the chemicals are poisoning underground drinking water sources, while industry officials say the chemicals pose no threat because they are handled safely.
LINK to Marc Levy's AP article.