Stage II Air Pollution Warning remains for Missoula Valley


MISSOULA, Mont. - The following is a press release from the Missoula City-County Health Department:

As of 4 PM on Friday, a Stage II Air Pollution Warning remains in place.  The current 24-hour particulate (PM2.5) average in Missoula is at 38 ug/m3 and the 24-hour National Ambient Air Quality Standard is 35 ug/m3. This value exceeds the National Ambient Air Quality Standard.

The high pressure ridge parked over the Missoula Valley is expected to last past the weekend.  The high pressure ridge coupled with strong inversions means air alert may last into next week.  Residents are encouraged to avoid nonessential driving, carpool or use non-motorized or public transportation. In addition, woodstove restrictions are in effect.

Woodstove Restrictions: Inside the Missoula Air Stagnation Zone and Impact Zone M, no visible emissions are allowed from any woodstove or other solid fuel burning devices without a valid Sole Source of Heat Permit.

In Missoula the 24-hour average particulate levels are at Unhealthy.  In Frenchtown the 24-hour average is at Unhealthy for Sensitiva Groups.

Health Advisory: People with heart or lung disease, smokers, children and the elderly should:

· limit heavy or prolonged exertion; and

· limit time spent outdoors.

People with asthma should follow their asthma management plan.

Anyone experiencing signs of respiratory distress should talk to their health care provider.

For the most current information on particulate air pollution levels in Seeley Lake and throughout the state, access Montana's  web site. More air quality information can be found at

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