Delaware is under a Code Red air alert due to smoke from Canadian wildfires. What does a code purple mean and what is AQI?

Canadian wildfire smoke has caused air quality in Washington DC to go beyond Code Red into Code Purple, "Very unhealthy" levels.

Wildfire smoke has all of Central Pennsylvania, including York County, under a Code Purple alert. The Pennsylvania Department of Environmental Protection (DEP) issued the Code Pur ...

Trade on MLB futures with Kalshi referral code ALCOM15 and get $15. Sign up for the Kalshi promo code ALCOM15 for $15 to ...

Preview this article 1 min Pending changes to the city of Sacramento's zoning code would make the city about as friendly to ...

Use the Kalshi referral code ALCOM15 to get a $15 bonus instead of the standard $10 offer when you trade on The Open ...

Make $10 in trades on the Mets vs. Phillies with the Kalshi promo code TSN15 to unlock a $15 MLB prediction bonus.

Philadelphia issued a "Code Red" air quality alert Thursday due to Canadian wildfire smoke, with air quality reaching "Very ...

The Metropolitan Washington Council of Governments has issued a Code Purple air day in the metropolitan Washington region ...

Kalshi offers a $10 bonus with code OREGONLIVE1 for new users trading MLB contracts after the All-Star break, with ...

The Pennsylvania Department of Environmental Protection has declared a statewide Code Purple air quality alert for ...