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

NCR's air quality on Wednesday invoked curbs under stage 4 of the Graded Response Action Plan (GRAP) amid a sharp dip in air ...

Wildfire smoke causes particularly dangerous air quality, especially for sensitive groups including children and pregnant people.

Several parts of southern California are currently under windblown dust and ash advisories as deadly wildfires continue to ...

I've lived in Oregon for a decade, meaning I've experienced multiple wildfire seasons. You learn quickly, in these conditions ...

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

Air quality in Metro Vancouver is not being impacted by the wildfires raging in California. According to officials, the air ...

A Reuters analysis shows that Berkshire coal plants emit more nitrogen oxide gases than any other coal-fired fleet in the ...

Major air pollutants have declined in recent decades, but USA TODAY’s analysis shows wildfire smoke is taking their place.

As people return to the structures spared from Los Angeles wildfires, experts warn that they should be careful of the air ...

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

The Air Quality Index (AQI), an indicator for pollution levels, is surprisingly poor in two cities- Utica and New York City.