Depending on the different pollutants in the air, like pollen or wildfire smoke, some days can be easier to breathe than others for Oklahomans.

Dhaka, the overcrowded capital of Bangladesh, ranked tenth on the list of cities with the worst air quality, with an AQI ...

The Commission for Air Quality Management (CAQM) sub-committee on Monday lifted the Stage 2 anti-pollution curbs under the Graded Response Action Pla ...