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Have you ever had a Bad Air Day? How bad was it? What exactly does it feel like to live with air pollution?0000017c-7f7e-d4f8-a77d-fffffe0d0000Through our partnership with the Public Insight Network, we're encouraging Cache County residents to talk about their experiences with air pollution in the valley and we're giving you a space to ask questions about air pollution. Your stories and questions will help shape our coverage of this complicated and important topic.Having a Bad Air Day? Tell us about it.Read more about the project at the Public Insight Networks' blog.

Air Quality In Northern Utah Worsens As Inversion Hits

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Inversion in Utah

A dirty layer of winter air is hovering over many northern Utah cities as an inversion sets in that is expected to last for days, if not weeks.

National Weather Service meteorologist Pete Wilensky said Friday that a high-pressure system over much of the U.S. West is leading to the murky winter air that causes problems for people with asthma and other respiratory illnesses.

Wilensky says the inversions are expected to last through all next week with air quality gradually deteriorating. The earliest possible break is the weekend of Dec. 16-17.

The winter inversions are a phenomenon in Utah's urban corridor caused by weather and geography. Cold, stagnant air settles in the bowl-shaped mountain basins, trapping tailpipe and other emissions that have no way of escaping to create a brown, murky haze the engulfs the metro area.