Ill. Admin. Code tit. 35 § 244.161
Current through Register Vol. 49, No. 2, January 10, 2025
Pollutant | Averaging Time | Advisory | Yellow Alert | Red Alert | Emergency |
Sulfur dioxide (ppm) | 2-hour | 0.30 | -- | -- | -- |
4-hour | -- | 0.30 | 0.35 | 0.40 | |
(PM10 µg/m3 | 2-hour | 420 | -- | -- | -- |
24-hour | -- | 350 | 420 | 500 | |
Carbon Monoxide (ppm) | 2-hour | 30 | -- | -- | |
8-hour | -- | 15. | 30. | 40. | |
Ozone (ppm) | 1-hour | 0.12 | 0.20 | 0.30 | 0.50 |
Nitrogen dioxide (ppm) | 2-hour | 0.40 | -- | -- | -- |
1-hour | -- | 0.60 | 1.20 | 1.60 | |
24-hour | -- | 0.15 | 0.30 | 0.40 |
Ill. Admin. Code tit. 35, § 244.161
Amended at 16 Ill. Reg. 8191, effective May 15, 1992