What are "Code Red" and "Code Purple" air quality alerts? The Air Quality Index has six color-coded categories, ranging from ...

I know we have Sky 11 up in the air showing what the haziness looks like from up above, and I know experts across our area, ...

When an air quality alert is announced, here are what the code colors mean and what the health dangers are as Canadian ...

Air quality alerts can change quickly during wildfire smoke events. Here’s what Code Orange and Code Red mean, who is most at ...

If you've stepped outside in Philadelphia today, you've probably noticed hazy skies and a smoky scent in the air as wildfire ...

Pennsylvania is under a statewide Code Red Air Quality Action Day due to wildfire smoke from Canada. Officials say particle pollution is expected to reach unhealthy levels across the Commonwealth.