40 C.F.R. § 52.1021

Current through September 30, 2024

Section 52.1021 - Classification of regions

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

Air quality control region	Pollutant
	Particulate matter	Sulfur oxides	Nitrogen dioxide	Carbon monoxide	Ozone
Metropolitan Portland Intrastate	I	II	III	III	III
Androscoggin Valley Interstate	IA	IA	III	III	III
Down East Intrastate	IA	IA	III	III	III
Aroostook Intrastate	III	III	III	III	III
Northwest Maine Intrastate	III	III	III	III	III

40 C.F.R. §52.1021

37 FR 10870, May 31, 1972, as amended at 45 FR 10774, Feb. 19, 1980