Classification of regions.

§ 52.2221 Classification of regions.

The Tennessee plan was evaluated on the basis of the following classifications:

Air quality control region Pollutant
Particulate matter Sulfur oxides Nitrogen dioxide Carbon monoxide Photochemical oxidants (hydrocarbons)
Eastern Tennessee-Southwestern Virginia InterstateIIIIIIIIIII
Tennessee River Valley-Cumberland Mountains IntrastateIIIIIIIIIII
Middle Tennessee IntrastateIIIIIIIIII
Western Tennessee IntrastateIIIIIIIIIIIII
Chattanooga InterstateIIIIIIIIIIII
Metropolitan Memphis InterstateIIIIIIIIIII
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