Air quality alerts can change quickly during wildfire smoke events. Here’s what Code Orange, Code Red, Code Purple and Code ...

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

Smoke from Canadian wildfires has impacted the air quality throughout United States, including in the northern High Plains, Midwest, Great Lakes, southern Mid-Atlantic and into the Northeast. This has ...

(WHTM) — If you thought air quality was bad in Code Red conditions, there are two worse levels. The Pennsylvania Department ...

Air quality worsened to code red Thursday in the Washington, D.C., area because of smoke from Canadian wildfires, posing a health risk to anyone who spends time outside. It comes less than three weeks ...

We're used to hearing intercom messages in big box stores like Target and Costco as well as grocery stores. One thing you may not know is that there is a universal color-coded announcement system to ...