Unhealthy air quality has descended on parts of the Bay Area thanks to a combination of cold weather, dense fog and smoke.

Delhi's air quality improves to 'moderate' category with Air Quality Index at 211, as per CPCB data on Wednesday.

Delhi experiences a slight improvement in air quality as the AQI remains in the poor category for three consecutive days, ...

An updated air quality alert was issued on Tuesday at 3:59 p.m. in effect until Thursday at midnight. The alert is for San ...

On Tuesday at 4:09 p.m. an updated air quality alert was issued valid until Thursday at midnight. The alert is for Catalina ...

The burn bans are issued when air quality becomes a concern and to prevent it from worsening. Stage 2 burns mean that all ...

"It's looking like, at least for the rest of the week into Friday, we're going to have either a stage one or a stage two burn ...

Dhaka, the overcrowded capital city of Bangladesh, has ranked the 7th on the list of cities with the worst air quality with ...

In late November, Delhi’s environment minister Gopal Rai sought permission from the central government to use cloud seeding ...

Topeka had the eighth-highest air quality among U.S. cities in a recent study conducted by Auto Trader, an online vehicle ...

Tech entrepreneur Bryan Johnson, on his India tour, highlights Mumbai's air pollution by comparing it with the filtered air ...

Dallas County is among 10 counties that don’t meet new federal air quality guidelines. What happens next is anyone’s guess.