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

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

Toxic smoke and dangerous particulate pollution are spreading far beyond the flames, leaving air quality at unhealthy levels ...

Indicators like the Air Quality Index (AQI), commonly used to track air pollution levels, provide a rough sense of the ...

If you have been hearing about poor air quality in New York City Friday, you can breathe a deep sigh of relief (literally): ...

Calculating air pollution from wildfires and other events has become more complicated. That doesn’t mean it’s necessarily ...

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

Dia Mirza, who was appointed as United Nations goodwill ambassador for the Environment Programme, appealed to the Chief ...

For the next six days, the air quality is likely to remain in the 'poor' to 'very poor' category in Delhi and surrounding ...

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

Ash from the recent LA County fires and burn scars formed by other wildfires in the fall can be dispersed by strong winds.