The EPA (Environmental Protection Agency) monitors various pollutants in the manufacturing industry, including:
- Air emissions (e.g. nitrogen oxides, sulfur dioxide, particulate matter)
- Water discharges (e.g. chemicals, heavy metals, organic matter)
- Hazardous waste management and disposal practices
- Use of ozone-depleting substances
- Release of toxic chemicals (e.g. under the Toxic Release Inventory program)
