Table 7-5: Maryland Air Quality Nonattainment Areas for Carbon Monoxide (CO)
Table 7-5: Maryland Air Quality Nonattainment Areas for Carbon Monoxide (CO)
County | Area | Nonattainment in year | Redesignation to attainment | Classification | Part or whole county | Population (2000) |
---|---|---|---|---|---|---|
Baltimore (City) | Baltimore | 95 | 12/15/95 | Moderate <= 12.7 ppm | Part | 16,207 |
Montgomery | Washington, DC-MD-VA | 95 | 3/15/96 | Moderate <= 12.7 ppm | Part | 426,365 |
Prince George's | Washington, DC-MD-VA | 95 | 3/15/96 | Moderate <= 12.7 ppm | Part | 342,888 |
KEY: ppm = parts per million.
NOTE: Nonattainment areas do not meet the national primary or secondary ambient air quality standard for the specified pollutant. Nonattainment areas are classified based on design values: Serious = an area with a design value of 16.5 ppm and above; Moderate = an area with a design value of 9.1 up to 16.4 ppm.
SOURCES: U.S. Environmental Protection Agency, Green Book, available at http://www.epa.gov/oar/oaqps/greenbk/anay.html as of Apr. 20, 2002.