Pennsylvania's shale boom has drill rigs popping up all over rural parts of the state. Pipeline projects, truck traffic, and hotel construction have followed. Now, industry plans to build large-scale natural gas processing plants. Some question how those projects might impact air quality.
On one side of the state, in Beaver County, Shell wants to build an ethane cracker. On the other side, close to Philadelphia, the Corbett administration is promoting the conversion of former oil refineries into natural gas processing plants. And Governor Corbett recently cheered as a Brazilian company just purchased a shuttered natural gas splitter in Delaware County.