The Inland Northwest is stuck under a ridge of high-pressure and will stay under this ridge for the next several days.

Hanoi authorities are under significant pressure to improve air quality, particularly as the city rotates in and out of the ...

Learn what the air quality index (AQI) means, how it impacts your health, and how to stay safe when pollution is high.

Those groups particularly sensitive to particulate matter in the air may want to limit time outside Friday and Saturday.

One possible reason for bad air quality in the city is a fire that broke out yesterday afternoon in Lancaster, Pennsylvania, where air quality is notably unhealthy. Why would a fire more than 150 ...

The India Meteorological Department (IMD) has predicted more light rain throughout the day, with maximum and minimum ...

Foggy conditions continued to engulf the national capital on Thursday morning causing disruptions in flight schedules ...

The air has improved in the LA region as firefighters get blazes under control, but there are questions about how safe the ...

“Researchers analyzed 175 countries,” using the most recent data from leading scientific and environmental research ...

There's confusion over how safe air quality is in L.A. as fires continue to burn, spewing wildfire smoke and toxins. We look at air quality readings, what's real and what's not and what people can do.

Delhi's AQI on Thursday dropped to 302, categorised as "Very Poor," from "Severe " levels recorded earlier this week. On Friday, the overall AQI stood at 294.

After fires destroyed multiple neighborhoods across Los Angeles County, many residents looked up to find blue, smoke-free ...