The EPA measures regional air quality index (AQI) by how hazardous it is to the general public. Discover the AQI in your city by searching below.

Air quality in Western Pennsylvania dropped ... AirNow.gov predicted that Pittsburgh’s AQI would reach 130 on Thursday and 100 on Friday. The Pittsburgh region was forecast to see code orange ...

“The minimum will drop till the western disturbance impacts the region. After that, we will likely see a rise in the minimum temperature again,” added the Met official. Delhi’s AQI had last ...