Pollution that cannot be prevented or recycled should be treated in an environmentally safe manner. As specified in the Clean Air Act Amendments of 1990, the achievement of the MACT standards can be accomplished via the following pollution prevention measures. Reduce the volume of, or eliminate emissions of, such pollutants through process changes, substitutions of materials or other modifications. Enclose systems or processes to eliminate emissions. Combination of the above.
Pollution prevention is very process and situation specific.
It involves the consideration of materials handling efficiencies, housekeeping measures, process design changes, operastional procedures, and material substitution to prevent the generation of air pollutants.