 |
| National Ambient Air Quality Standards |
| Primary Standard |
Threshold |
Secondary Standard |
Threshold |
| Carbon Monoxide (CO) 8-hour |
9 ppm (10 mg/m3) |
|
|
| Carbon Monoxide (CO) 1-hour |
35 ppm (40 mg/m3) |
|
|
| Lead (Pb) Rolling 3-Month Average |
0.15 µg/m3 |
Lead (Pb) Rolling 3-Month Average |
0.15 µg/m3 |
| Nitrogen Dioxide (NO2) 1-hour |
100 ppb |
|
|
Nitrogen Dioxide (NO2) Annual
(Arithmetic Average) |
53 ppb |
Nitrogen Dioxide (NO2) Annual
(Arithmetic Average) |
53 ppb |
| Ozone (O3) 8-hour (2008) |
0.075 ppm |
Ozone (O3) 8-hour (2008) |
0.075 ppm |
| Ozone (O3) 8-hour (1997) |
0.08 ppm |
Ozone (O3) 8-hour (1997) |
0.08 ppm |
| Ozone (O3) 1-hour |
0.12 ppm |
Ozone (O3) 1-hour |
0.12 ppm |
| Particulate Matter (PM10) 24-hour |
150 µg/m3 |
Particulate Matter (PM10) 24-hour |
150 µg/m3 |
Particulate Matter (PM25) Annual
(Arithmetic Average) |
15.0 µg/m3 |
Particulate Matter (PM25) Annual
(Arithmetic Average) |
15.0 µg/m3 |
| Particulate Matter (PM25) 24-hour |
35 µg/m3 |
Particulate Matter (PM25) 24-hour |
35 µg/m3 |
Sulfur Dioxide (SO2) Annual
(Arithmetic Average) |
0.03 ppm |
|
|
| Sulfur Dioxide (SO2) 24-hour |
0.14 ppm |
|
|
| Sulfur Dioxide (SO2) 1-hour |
75 ppb |
|
|
| |
|
Sulfur Dioxide (SO2) 3-hour |
0.5 ppm |
 |
