Hazardous and Toxic Substances Air emissions
Locally regulated pollutants Nonregulated pollutants Liquid and solid discharges Heavy metals
Locally regulated pollutants Nonregulated pollutants Nonhazardous Substances
Low concentrations of toxic materials Air emissions Liquid and solid emissions Inorganic salts Nonhazardous Waste
Packaging, sanitary, biotreatment wastewater and sludge Carbon dioxide
Water and Air (oxygen and nitrogen) Drinking and breathing standards
Note: Odor, visible plumes, thermal pollution, and noise should also be considered and may rank high on the hierarchy, depending on the project.
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