More than third of the US population is under air quality alerts, covering more than a dozen states from the Midwest to the East Coast, as smoke from Canadian wildfires sweeps across parts of the ...

Here’s what we know about wildfire smoke and a few tips to protect yourself. By Sophie Kasakove As the Dixie Fire rages in California, plumes of noxious smoke have turned the air as far afield as Salt ...

Smoke from Canadian wildfires has lingered in New Jersey enough for the dial on the state’s air quality index to hit “unhealthy” levels Wednesday afternoon. Thicker air, a tangerine hue to the sky and ...