Ill. Admin. Code tit. 35, § 204.910 – Ambient Air Ceilings | Midpage
§ 204.910
Ill. Admin. Code tit. 35, § 204.910
Ambient Air Ceilings
AUTHORITY: Implementing Sections 9.1 and 10 and authorized by Sections 27 and 28 of the Environmental Protection Act [415 ILCS 5/9.1, 10, 27 and 28].POLLUTION CONTROL BOARD
a) The concentration permitted under the national secondary ambient air quality standard; or
b) The concentration permitted under the national primary ambient air quality standard, whichever concentration is lowest for the pollutant for a period of exposure.