C.F.R. » Title 40 » CHAPTER I—ENVIRONMENTAL PROTECTION AGENCY › SUBCHAPTER C—AIR PROGRAMS › PART 52—APPROVAL AND PROMULGATION OF IMPLEMENTATION PLANS › Subpart XX—West Virginia

40 C.F.R. § 52.2521

Classification of regions

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The West Virginia plan was evaluated on the basis of the following classifications:

Air quality control regionPollutant
Particulate matterSulfur oxidesNitrogen dioxideCarbon monoxidePhotochemical oxidants (hydrocarbons)
Steubenville-Weirton-Wheeling InterstateIIIIIIIIIII
Parkersburg-Marietta InterstateIIIIIIIIIIII
Huntington-Ashland-Portsmouth-Ironton InterstateIIIIIIIIIIIII
Kanawha Valley IntrastateIIIIIIIIIIIII
Southern West Virginia IntrastateIIIIIIIIIIIIIII
North Central West Virginia IntrastateIIIIIIIIIIIII
Cumberland-Keyser InterstateIIIIIIIIIII
Central West Virginia IntrastateIIIIIIIIIIIIIII
Allegheny IntrastateIIIIIIIIIIIIIII
Eastern Panhandle IntrastateIIIIIIIIIIIIIII
[37 FR 10902, May 31, 1972]