What is AQI Index: The Air Quality Index (AQI) is used by government agencies to measure the quality of air. AQI measure all ...

Air Quality Numbers Explained: As pollution in Delhi continues to rise without pause, residents are constantly checking the AQI levels to decide when it might be safe to step outdoors. Air Quality ...

(WLUK) — Hazy skies and poor air quality continue to impact Wisconsin, driven by smoke from Canadian wildfires. This phenomenon is becoming more frequent compared to a decade or two ago, as wildfire ...

Air pollution is in the "unhealthy" category for a part of eastern California on Thursday morning, including the town of Keeler.

Weather conditions trapping wood smoke pollution near the ground prompted the Bay Area Air District to issue a Spare the Air ...