ok-1881: Department of Environmental Quality — Air Pollution Control
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The Department of Environmental Quality (Department or DEQ) is proposing to amend Appendix F to maintain consistency with the National Ambient Air Quality Standards (NAAQS). The sulfur dioxide secondary standard is being amended to reflect recent changes made by the U.S. Environmental Protection Agency (EPA) in which the 3-hour maximum was changed to an annual arithmetic mean of 10 parts per billion (ppb). Additionally, the secondary standards for particulate matter and nitrogen dioxide are being amended to match the standards previously set by EPA. The gist of the proposed rule is to ensure Appendix F is consistent with the federal NAAQS.
The agency’s own summary, as published.
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