The Purpose of Montana’s ambient air monitoring network is to monitor, assess and provide information on statewide air quality conditions and trends as specified by the Montana and Federal Clean Air Acts. The Air Quality Monitoring Program works in conjunction with local air pollution agencies and some industries, measuring air quality throughout Montana. This data provides the factual basis for regulatory decisions as well as provides air quality information to our local counterparts and the public.
Today's Air Quality
Hourly fine particulate monitoring concentrations and health impact information
Montana DEQ Data Search Tools
Access to current and archived ambient air monitoring data.
Data Search Tools