Toronto and most of southern Ontario are under a special air quality statement due to the smoke from wildfires burning across Canada.

A plume of dust is affecting air quality in Florida and may reach other Southern states soon. Here’s what we know about the ...

An air quality alert has been extended for the Chicago area as "unhealthy" levels are expected to continue into the start of ...

The latest edition of "Column Watch" features our annual review of new liquid chromatography columns and accessories, ...

New data shows that CO2 levels have broken through 430 parts per million, an indication that human-caused global warming will ...

As of early Thursday, the air quality for much of northeast Illinois, including multiple suburbs to the north and some to the west, fell into the "unhealthy for sensitive groups" category, which ranks ...

When the New Horizons spacecraft swept past Pluto and Charon in 2015, it revealed two amazingly complex worlds and an active ...

Subatomic particles such as quarks can pair up when linked by ‘strings’ of force fields — and release energy when these strings are pulled to the point of breaking. Two teams of physicists have now ...

"There's no such thing as safe wildfire smoke; any of it is too much for us. It's important that we get prepared and we're ...

Smoke from a series of wildfires burning across central Canada has prompted officials to issue an air quality alert for the ...

Crater still smouldering after tourists flee strongest volcanic blast in four years - Footage shared on social media shows ...