If your facility has any process which emits any gases or materials (other than pure water vapor) to the
atmosphere, an air quality permit may be required. The main pollutants of concern are referred to as
"criteria pollutants," and include:
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PM10 (particulate matter less than 10 microns in diameter)
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Ozone (regulated in part by controlling emissions of volatile organic compounds or VOCs)
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Sulfur Dioxide (SO2)
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Oxides of Nitrogen (NOx)
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Carbon Monoxide (CO)
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Lead (Pb)
Hazardous Air Pollutants (HAPs) and Toxic Air Pollutants (TAPs) must also be considered. Many are commonly
used as solvents, coating ingredients or may be emitted as byproducts of industrial processes.