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Washington, DC-MD-VA 8-hour Ozone Map

Washington, DC-MD-VA 8-hour Ozone Map, click for detailed description.

"This map shows the boundaries of the designated Washington, DC-MD-VA 8-hour ozone nonattainment area. It includes the boundaries of associated 1-hour ozone nonattainment and/or maintenance areas, as well as any associated MPOs. The map is intended to depict the extent of 8-hour ozone nonattainment in this area, and how the boundaries of the 8-hour area, 1-hour area, and the MPO planning area relate to each other."

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