Office of Air Quality

The Office of Air Quality (OAQ) is the office of IDEM responsible for protecting public health and the environment by serving the citizens of Indiana through the fulfillment of its responsibilities as set forth in the Environmental Acts. These responsibilities are fulfilled through the following programs:

• Air Attainment and Redesignations
• Air Dispersion Modeling
• Air Quality Monitoring:
  • Continuous Air Quality Monitoring
  • Carbon Monoxide (CO)
  • Meteorological (Various)
  • Oxides of Nitrogen (NO_x)
  • Ozone (O₃)
  • Particulate (PM2.5)
  • Particulate (PM10)
  • Sulfur Dioxide (SO₂)
  • Toxics
• Be Air Aware Campaign
• Clean Energy Credit
• DieselWise
• Eight-Hour Ozone
• Emissions Reporting Program
• Fine Particulate Matter PM2.5
• Indiana Clean Air Interstate Rule (CAIR) and Indiana Mercury Rule (CAMR)
• Local Air Agencies
• Nitrogen Oxide SIP Call Information
• Partners for Clean Air
• Risk Assessment
• SmogWatch
• Southwest Indianapolis Air Toxics Study
• Vehicle Emissions Testing Program
• Voluntary Idling Program
• Workgroups
  • Regional Haze and Best Available Retrofit Technology (BART)

What's New

• BP Products, Whiting Air Permit Information
  • Significant Source Modification - Final Permit [PDF - 6.95MB]
• Jefferson County (Madison Township) and Clark and Floyd Counties: Fine Particle Attainment Demonstration and Technical Support Document [PDF]
• Dearborn County: Fine Particle Attainment Demonstration and Technical Support Document [DOC]
• Central Indiana: Fine Particle Attainment Demonstration and Technical Support Document [DOC]
• The United States Environmental Protection Agency (U.S. EPA) Releases New Ozone Standard (March 12, 2008)
• Southwestern Indiana: Final Request for Redesignation and Maintenance Plan for Annual Fine Particles [PDF]
• Commissioner's Order #2008-01 and Variance; ALCOA Power Generating, Inc.
  • Notice and Order of the IDEM Commissioner
  • ALCOA Legal Notice of Public Hearing - March 20 hearing cancelled
• Lake and Porter Counties: Final Redesignation Request and Maintenance Plan for Annual Fine Particles
  • 2007 AQS Monitoring Data
• Proposed Revisions to the 8-hr Ozone Standard
• Commissioner's Order #2007-01
  • Notice and Order of the IDEM Commissioner
  • Variance for BP Products North America Inc.
  • Approval of Commissioner's Order and Variance
  • Notice of Public Hearing - Cancelled

Contact: (317) 233-0178

May 12 2008
IDEM invites public to comment on fine particle air status in Lake and Porter counties (view)

May 01 2008
IDEM issues BP air permit construction approval (view)

May 01 2008
IDEM kicks off ozone season in Northern Indiana (view)

May 01 2008
IDEM kicks off ozone season in Indianapolis (view)

May 01 2008
IDEM kicks off ozone season in Evansville (view)

May 01 2008
IDEM to kick off ozone season in Northern Indiana (view)

Apr 29 2008
IDEM to kick off ozone season in Indianapolis; IndyGo stations to host events (view)

Apr 29 2008
IDEM to kick off ozone season in Evansville; local restaurant to host event (view)

Apr 28 2008
IDEM kicks off ozone season in New Albany (view)

Apr 28 2008
IDEM kicks off ozone season in Fort Wayne (view)

Apr 21 2008
Central Indiana residents can comment on draft plan to meet the fine particle standard (view)

No current Office of Air Quality notices.

May 30 2008 1:00 PM
Central Indiana Air Quality Advisory Group Meeting (view)