Welcome to Indiana's Smog Watch Web site!
SmogWatch is an informational tool created by IDEM to share air quality forecasts for each day. SmogWatch provides daily information about ground-level ozone and particulate matter air quality forecasts, health information, and monitoring data for seven regions of Indiana.
Indiana experiences its highest levels of ground-level ozone from mid-May until mid-September. During this time, Smog Watch will provide daily health information and ozone forecasts. Particulate matter information and forecasts are available year-round.
To access the air quality forecast and health scale reading for your area, please click on the appropriate regional area on the map above or in the table below.. The forecasts are based on actual air quality readings and weather patterns analyzed by state and federal meteorologists. Symbols on the map represent the regional air quality forecast for today as follows:
*Air Quality Index
|Region||Health Level||Primary Pollutant|
The primary pollutant is the pollutant that is forecast to have the highest potential health impact.
Indiana's air quality forecasts can also be accessed using the link below