Dense fog in Delhi has caused significant train and flight delays, with the air quality remaining poor and temperatures staying chilly, while authorities continue to monitor the situation.

The city’s average Air Quality Index (AQI) stood at 289 on Thursday, categorized as “Very Poor,” marking a sharp decline from the "Severe" levels earlier this week.

Anti-pollution restrictions under Stage 3 of the Graded Response Action Plan (GRAP) were revoked in Delhi and its ...

Unlike typical wildfires, smoke from the L.A. fires — consisting of toxic materials from burned down homes, cars, and more — ...

The LA wildfires have burned tens of thousands of acres – but on some weather maps, air quality still looks good. What’s ...

The air that women breathe up to three months before they become pregnant can have an effect on the future baby’s size. A ...

A total of six towns in Monmouth and Ocean counties have unhealthy air and ozone levels, according to AirNow.gov.

Poor air quality has been detected in multiple states surrounding California. The state has been hit with multiple deadly ...

Public health officials and researchers urge the public to cover up outside and clean carefully indoors, but many low-income ...

Dhaka, the overcrowded capital city of Bangladesh, has topped the list of cities with the worst air quality with an AQI index of 255 at 09:01am today (17 January).  ​​The air was classified as 'very ...

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.

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