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Air Quality in Indiana

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Partners for Clean Air

Partners for Clean Air (PCA) is a coalition of Northwest Indiana and Chicago area businesses, industry, and community groups committed to improving air quality through voluntary actions.

Members of the Partners for Clean Air Program develop Air Quality Action Plans. These plans are designed to be implemented on Air Quality Action Days as a way of reducing ozone, PM 2.5 (particulate matter 2.5 µm and smaller), and other harmful pollutants.

Air Quality Action Days are days in which ground level ozone and particulate matter are predicted to reach unhealthy levels. The Air Quality Action Season for Indiana ozone concerns begins May 1st and ends September 30th of each year while PM 2.5 action days can occur year round. Review your Action Day notification for information regarding what the primary pollutant for the day is. IDEM and the Illinois EPA employ a team of forecasters who analyze weather patterns, ozone concentrations, and PM 2.5 to determine if ground level ozone and PM 2.5 may reach unhealthy levels.

The Indiana Department of Environmental Management Northwest Regional Office is located in Merrillville, Indiana and serves Lake, Porter, and LaPorte counties of Northwest Indiana. The office provides local access to permits, inspection reports, and general information on environmental activities with state, municipal, and industrial facilities in the area. In addition, staff members answer questions from the public about a wide range of environmental subjects.

Partners for Clean Air Brochure (Currently Unavailable)

For questions or comments, contact the Partners for Clean Air Coordinator at info at idem.IN.gov.

Upcoming Events

  • 2014 PCA Asthma Awareness Event at Garwood Orchards:
    • When: September 13, 2014
    • Where: Garwood Orchards, 5921 W. 50 South, LaPorte County
    • Phone: (219) 362-4385