Air Pollution Control District

The Air Pollution Control District implements the Clean Air Act in Louisville, working in partnership with the U. S. Environmental Protection Agency, the Kentucky Division for Air Quality, and the Indiana Department of Environmental Management.

Responsibilities of the District include issuing and enforcing permits for sources of air pollution, monitoring the ambient air to ensure that it meets federal air quality standards, and investigating and addressing community reports of air quality issues.

Other Air Pollution Updates & Resources

  • The APCD is utilizing new equipment to collect data on Louisville’s air quality and has published a report titled Air Toxics Monitoring Report July 2020 - June 2021 to summarize the progress of the project and the first year of quality-assured data that was collected.
  • The 2022 APCD Annual Report is now available. The report provides an update on the state of Louisville's air and an inside look at the work of Air Pollution Control District. A presentation on the report will be found on the APCD Board Meetings & Public Hearings page. 
  • EPA has proposed to revise the annual National Ambient Air Quality Standard (NAAQS) for fine particulate matter (PM₂.₅) from 12 µg/m³ to between 9 and 10 µg/m³, and is taking comment on a range anywhere from 8 to 11 µg/m³. The full proposed rule is now available in the Federal Register. The public comment period will run through March 28. More information on the proposed rule is available on EPA’s website.
  • As part of ongoing enforcement action with APCD, MSD has produced an Odor Control Master Plan addressing odors from Morris Forman WQTC, the sewer collection system, and select pump stations. The full report is available on the APCD Enforcement page under ENF-APCD-19-00025.


  • 701 W. Ormsby Ave. Suite 303
    Louisville, KY 40203
    United States

  • Hours

    8 a.m. - 5 p.m. Monday-Friday

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