OAR 340-202-0210
PSD Increments (Maximum Allowable Increase)
Micrograms per cubic meter |
CLASS I |
Pollutant | Micrograms per cubic meter |
Particulate matter:
PM10, Annual arithmetic mean
PM10, 24-hour maximum |
4
8 |
Sulfur dioxide:
Annual arithmetic mean
24-hour maximum
3-hour maximum |
2
5
25 |
Nitrogen dioxide:
Annual arithmetic mean |
2.5 |
Class II |
Pollutant | Micrograms per cubic meter |
Particulate matter:
PM10, Annual arithmetic mean
PM10, 24-hour maximum |
17
30 |
Sulfur dioxide:
Annual arithmetic mean
24-hour maximum
3-hour maximum |
20
91
512 |
Nitrogen dioxide:
Annual arithmetic mean |
25 |
Class III |
Pollutant | Micrograms per cubic meter |
Particulate matter:
PM10, Annual arithmetic mean
PM10, 24-hour maximum |
34
60 |
Sulfur dioxide:
Annual arithmetic mean
24-hour maximum
3-hour maximum |
40
182
700 |
Nitrogen dioxide:
Annual arithmetic mean |
50 |