Illinois Administrative Code
Title 35 - ENVIRONMENTAL PROTECTION
Part 244 - EPISODES
Subpart D - EPISODE STAGES
Section 244.161 - Advisory, Alert and Emergency Levels
Universal Citation: 35 IL Admin Code ยง 244.161
Current through Register Vol. 48, No. 38, September 20, 2024
|
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 |
Disclaimer: These regulations may not be the most recent version. Illinois may have more current or accurate information. We make no warranties or guarantees about the accuracy, completeness, or adequacy of the information contained on this site or the information linked to on the state site. Please check official sources.
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