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Enter smellphone: Your next phone may double as an air quality monitor

A new cellphone feature will alert you to open a window or turn on an air purifier.
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The air quality index explained: What it means and how to stay safe

Here’s what we know about pollution and a few tips to protect yourself.
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It’s not just you — Colorado got lucky with wildfire smoke this summer

It's official: Colorado got a huge break from wildfire smoke in 2022.

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AQI: How to use air pollution and wildfire apps in your zip code

Microscopic particles in the air, whether from wildfire smoke or other sources of air pollution such as industrial and automobile exhaust, are dangerous: Their size allows them to penetrate deep into the body, even entering the lungs and bloodstream.