Classification of regions.

§ 52.1321 Classification of regions.

The Missouri plans were evaluated on the basis of the following classifications:

Air quality control region Pollutant
Particulate matter Sulfur oxides Nitrogen dioxide Carbon monoxide Photochemical oxidants (hydrocarbons)
Metropolitan Kansas City InterstateIIIIIIIII
Southwest Missouri IntrastateIIIIIIIIIIIII
Southeast Missouri IntrastateIIIIIIIIIIIIIII
Northern Missouri IntrastateIIIIIIIIIIIIII
Metropolitan St. Louis InterstateIIIIIII
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