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R 72-007 07/10/75 Order
IN THE MATTER OF: PROPOSED AIR QUALITY STANDARDS
Handle: Document-34681
Owner: Site Administrator (User-2, admin:DocuShare)DS
Tuesday, February 4, 2003 12:06:27 PM CST
Wednesday, May 21, 2003 03:48:56 PM CDT
Modified By: Site Administrator (User-2, admin:DocuShare)DS
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  • ILLINOIS POLLUTION CONTROL BOARD
July 1g., 1975IN THE MATTER OF ) PROPOSED AIR QUALITY STANDARDS ) R72-7ORDER OF THE BOARD (by Mr.
  • The primary ambient air quality
standards for sulfur oxides measured as sulfur dioxideare: (A) an annual arithmetic mean concentration of 80micrograms per cubic meter (0.03 ppm); and (B) a maximum24—hour concentration not to be exceeded more than onceper year of 365 micrograms per cubic meter (0.14 ppm).
  • (h) Secondary Standard.
  • For determining conformance
with sulfur oxide air quality standards, sulfur oxidesshall be measured as sulfur dioxide by the pararosanilinemethod as described in 40 ...
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Appears In: R 72-007
Preferred Version: R 72-007 07/10/75 Order