View all text of Subpart Y [§ 52.1219 - § 52.1241]
§ 52.1221 - Classification of regions.
The Minnesota 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) | Central Minnesota Intrastate | II | III | III | III | III | Southeast Minnesota-La Crosse (Wisconsin) Interstate | II | Ia | III | III | III | Duluth (Minnesota)-Superior (Wisconsin) Interstate | I | II | III | III | III | Metropolitan Fargo-Moorhead Interstate | II | III | III | III | III | Minneapolis-St. Paul Intrastate | I | I | III | I | III | Northwest Minnesota Intrastate | II | III | III | III | III | Southwest Minnesota Intrastate | III | III | III | III | III |
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