Chiang Mai faces severe air pollution from burning in Myanmar and Laos. 17 Thai provinces exceed PM2.5 safety levels.

The Air Quality Index in Delhi dropped to 999 over the weekend, making it the most polluted capital city in the world. While the safe limit set by the World Health Organisation is 25, anything ...

This measure, based on data from the Environmental Protection Agency, evaluates states on the number of days the Air Quality Index in counties was not rated “good.” U.S. News calculated a ...

In the following California air quality map, you can see how the air quality is where you live or throughout California. This information is provided via the United States Environmental Protection ...

The AQI tracker on Google Maps displays air quality information by using a colour-coded system: The air quality index is colour ... conditions for everyone. Purple indicates very unhealthy air ...

The ozone season in Dallas-Fort Worth lasts most of the year hotter weather can have an impact on ground-level ozone and the ...