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Saturday's storm brought some air quality relief for Wasatch Front residents.

Levels of pollution went down Sunday to moderate from high.

"We cleared up pretty good today. Most of the inversion was swept out with the cold front that went through last night," Christine Kruse, of the National Weather Service said Sunday.

But the blue skies are not expected to last for long. According to the Utah Division of Air Quality forecast, Salt Lake City, Davis and Weber counties will return to red air alert levels by Tuesday. That means children, older adults and people with heart or lung disease are advised to avoid prolonged or heavy exertion.

Box Elder and Cache counties' respite will be even shorter, with air quality worsening to red by Monday.

Tooele and Utah counties, on the other hand, are expected to remain in good or moderate air-quality levels with no health advisory for residents in the area.

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