Table # 1 PSD Increments (Maximum Allowable Increase) (micrograms per cubic meter) OAR 340-202-8000 | ||
Class I | ||
Pollutant | Increment | |
Particulate Matter: | ||
PM2.5, annual arithmetic mean | 1 | |
PM2.5, 24-hour maximum | 2 | |
PM10, annual arithmetic mean | 4 | |
PM10, 24-hour maximum | 8 | |
Sulfur dioxide: | ||
annual arithmetic mean | 2 | |
24-hour maximum | 5 | |
3-hour maximum | 25 | |
Nitrogen dioxide: | ||
annual arithmetic mean | 2.5 | |
Class II | ||
Pollutant | Increment | |
Particulate Matter: | ||
PM2.5, annual arithmetic mean | 4 | |
PM2.5, 24-hour maximum | 9 | |
PM10, annual arithmetic mean | 17 | |
PM10, 24-hour maximum | 30 | |
Sulfur dioxide: | ||
annual arithmetic mean | 20 | |
24-hour maximum | 91 | |
3-hour maximum | 512 | |
Nitrogen dioxide: | ||
annual arithmetic mean | 25 | |
Class III | ||
Pollutant | Increment | |
Particulate Matter: | ||
PM2.5, annual arithmetic mean | 8 | |
PM2.5, 24-hour maximum | 18 | |
PM10, annual arithmetic mean | 34 | |
PM10, 24-hour maximum | 60 | |
Sulfur dioxide: | ||
annual arithmetic mean | 40 | |
24-hour maximum | 182 | |
3-hour maximum | 700 | |
Nitrogen dioxide: | ||
annual arithmetic mean | 50 | |