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Regulated Pollutants

If a source emits one or more of the following regulated pollutants, it may need some type of air permit or approval from IDEM’s Office of Air Quality.

The same pollutant may be regulated under more than one standard. For example, lead is regulated as a criteria pollutant and a HAP.

New Source Review Pollutants

New source review pollutants include pollutants regulated under a NAAQS and their precursors; pollutants regulated under a NSPS; stratospheric ozone pollutants; greenhouse gasses; and HAPs that are regulated as a constituent or precursor of a general pollutant that could cause adverse impacts to public health.