Air Quality

Nonattainment means that a geographic area has not consistently met the clean air levels set by the U.S. Environmental Protection Agency in the National Ambient Air Quality Standards. Legal descriptions of these areas are available in Oregon Administrative Rules, Chapter 340, Division 204-0010.

Current nonattainment areas in Oregon

PM_2.5

Klamath Falls

Overview
Klamath Falls 2020 Exceptional Event EPA Concurrence Request
2006 24-Hour PM_2.5 Standards (EPA website)
Oregon's recommendations for 2006 24-hour standard PM_2.5 designations and EPA's responses
EPA's 2006 24-hour PM_2.5 standard
Final designations for Oregon
Presentation to EQC Klamath Falls Oct. 22, 2009

Oakridge PM_2.5 Nonattainment Area

DEQ oversees the Oakridge PM_2.5 Nonattainment Area, under the authority of the Lane Regional Air Protection Agency

Oakridge 2020 PM_2.5 Exceptional Event EPA Concurrence Request

PM₁₀

DEQ oversees the Oakridge PM₁₀ Nonattainment Area, under the authority of the Lane Regional Air Protection Agency

Oakridge 2020 PM₁₀ Exceptional Event EPA Concurrence Request

Air Quality

Nonattainment Areas

Current nonattainment areas in Oregon

PM2.5

Klamath Falls

Oakridge PM2.5 Nonattainment Area

PM10

PM_2.5

Oakridge PM_2.5 Nonattainment Area

PM₁₀