Air Quality

Industrial Sources

For information and requirements for an industrial air quality construction permit, visit the Montana Department of Environmental Quality.

Outdoor Burning

For information about the online outdoor burn permit system and open burning visit Yellowstone County Open Burning.

Dust Control

Dust from unpaved roads is a common seasonal issue in Yellowstone County. The Public Works Department Road & Bridge Division is responsible for construction and maintenance of over 1,540 miles of county roads in Yellowstone County. For information on dust control visit Public Works Department.


Radon is a colorless, odorless and tasteless gas found in some Montana homes. Long-term exposure can lead to a risk of lung cancer. For information on radon, how to test your home and what to do about it, visit the Radon Control Program at Montana Department of Environmental Quality.
RiverStone Health

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