Thai authorities advised the public on Tuesday to wear face masks and avoid outdoor activities due to high levels of air ...

What we’re really worried about is the PM2.5 levels,” or the fine particles in wildfire smoke, which have a diameter of less ...

Officials are warning of windblown ash and other pollutants from Los Angeles-area fires and say air quality readers won't ...

There are many pollutants of concern in wildfire smoke,” including ozone, carbon monoxide and other toxic gases, says ...

NASA selected 25 new citizen science proposals for funding that will lead to new projects and new results to look forward to ...

Fine particulate matter contributed to about 239,000 deaths in Europe, but the burden was felt more deeply in some parts of ...

Smoke from the wildfires can wreak havoc on your health. Here are tips to stay safe.

High pressure in the Great Basin and low pressure over northern Baja California, plus a very strong jet stream roaring ...

As the Los Angeles wildfires continue, there are several sites and apps for checking air quality information in your area.

New data from 2.5 million marathon finishers finds that subtle changes in air quality can affect your race time ...