Rain on the intervening night of Wednesday and Thursday brought Delhi's air quality index down from the severe range to poor, ...

Air quality in wildfire-stricken Los Angeles improved on Thursday from hazardous peaks hit earlier this month, as tiny soot ...

CAQM said it promptly withdrew the GRAP-4 restrictions owing to its vast impact on daily life and disruption to a large ...

Gurgaon: Light rain on Thursday morning helped the city breathe easier as the air quality index was 161 (moderate).

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

Wildfire ash carries many carcinogens that could cause short- and long-term health problems, including asthma attacks and ...

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

Los Angeles is now a week removed from the day that multiple devastating wildfires erupted to torch tens of thousands of ...

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

Wildfires are tearing through thousands of acres in Los Angeles County in California, as strong Santa Ana winds stoke the ...

Arizona is the only state with 'unhealthy' air quality. Part of it stems from our geography, but part also comes from our ...