There exist numerous websites that rank the environmental performance of individual
companies within the US economy and within a particular industry. One of the best such
websites is the Newsweek Green Rankings. You can filter the Newsweek data by 20
industries (ranging from Aerospace to Vehicles).
Toxic Release Inventory, an EPA database of toxic emission by facilities operating in the
US, is a useful source. The database can be queried to generate a report about the toxic
emissions of an entire industry.