Current NAAQS Attainment Status for Birmingham

The table below displays the current National Ambient Air Quality Standards (NAAQS) set by the US Environmental Protection Agency and the Birmingham area’s attainment status for each pollutant.

 Carbon Monoxide (CO) 8-hour 9 ppm

Attainment

1-hour 35 ppm

Attainment

 Lead (Pb) Rolling 3-mo. Average 0.15 µg/m3

Attainment

 Nitrogen Dioxide (NO2) 1-hour 100 ppb

Attainment

Annual 53 ppb

Attainment

 Ozone (O3) 8-hour 0.075 ppm

Attainment

 Particulate Matter (PM2.5) Annual 12 µg/m3

Attainment

24-hour 35 µg/m3

Attainment

 Particulate Matter (PM10) 24-hour 150 µg/m3

Attainment

 Sulfur Dioxide (SO2) 1-hour 75 ppb

Pending*

3-hour 0.5 ppm

Attainment

*EPA has acknowledged that the area meets the standard, but is not yet prepared to propose designation action