The Office of Sustainability collects ambient air quality data in and around Marion County for pollutants which have National Ambient Air Quality Standards (NAAQS). These pollutants are referred to as the criteria pollutants and include carbon monoxide (CO), ozone (O3), sulfur dioxide (SO2), nitrogen dioxide (NO2), particulate matter 10 micron (PM10), particulate matter 2.5 micron (Fine Particles), and lead (Pb).
The air quality standards are set at levels to protect the public health. Air monitoring is conducted by the Indiana Department of Environmental Management (IDEM) to assure compliance of those standards. The gaseous pollutants (CO, O3, SO2) are measured 24 hours a day, 7 days a week by IDEM staff. The particulate type pollutants (Fine Particles, PM10, Pb) are collected over a 24 hour period and measured once every day (Fine Particles) to every 6th day (PM10 and Pb). Each year the agency collects nearly 160,000 total air measurements in cental Indiana.
Up to hour air quality information and readings can also be checked by calling our air quality phone line at 317-327-4AIR. Forecasted AQI levels are also reported.
The Indianapolis Air Pollution Control Board is a nine member board responsible for enhancing and improving the air quality for the City of Indianapolis and Marion County, Indiana.
The Board membership is composed from the following professions: A professional engineer, registered in the State of Indiana; A physician, licensed in the State of Indiana; An attorney, admitted to the Indiana Bar; A member knowledgeable in solid waste disposal; A member knowledgeable in fuel technology and combustion; A member knowledgeable in process manufacturing; A member representing industry; A member representing labor; and A member representing the public at large. Five of the members are appointed by the Mayor of Indianapolis and four are appointed by the City-County Council. All members serve a four year term.
The Board holds public meetings on the second Thursday of each month. The meetings are held in Room 107 of the City-County Building at 9:30 a.m. Copies of the agenda can be requested from our office at 317-327-2234 or through e-mail (contact OES)
To view the videos of meetings or current and previous air pollution board packets, click here
Ordinances and Regulations
Regulation 1 - General Provisions
Regulation 6.5 -Particulate Emission Limitations for Indianapolis/ Marion County