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

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

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

The city experienced another warm day with the maximum temperature reaching 23.7 degrees Celsius on Friday, three degrees ...

Delhi recorded a maximum temperature of 23.7 degrees Celsius with moderate air quality on Friday, the India Meteorological Department (IMD) said. The 24-hour average Air Quality Index (AQI) was ...

One possible reason for bad air quality in the city is a fire that broke out yesterday afternoon in Lancaster, Pennsylvania, where air quality is notably unhealthy. Why would a fire more than 150 ...

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

The popular tourist destination recorded an Air Quality Index of 168 which is considered ‘unhealthy’ while the level of PM2.5 ...

Erin Davis/Axios Visuals Air quality is worsening in the Upper Midwest and Northern California, according to year-over-year data. Why it matters: Poor air quality can lead to long-term health problems ...

Air quality levels across most cities in Sri Lanka were reported to be good on yesterday Thursday, with moderate levels ...

Today’s air was classified as ‘very unhealthy', referring to a severe health threat, according to the AQI index ...

BANGKOK: All 50 districts of the Thai capital were shrouded by PM2.5 pollution for the fifth consecutive day on Friday (Jan 24), with Nong Khaem, Khan Na Yao, Min Buri, Thawi Watthana and Lak Si the ...