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

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

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

The Air Quality Index, or AQI, is the primary system used to warn the public when air pollution is dangerous. It’s based on ...

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

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

Delhi experienced its warmest Republic Day in eight years with a maximum temperature of 23.7°C. Clear skies and northwesterly ...

Lahore, Pakistan, has topped the global air pollution list today, with Dhaka, the capital of Bangladesh, holding the second ...

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

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

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

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