Air Quality Index (AQI)
The Air Quality Index (AQI) is a number used to tell people how clean or polluted the air is, and what health effects might be a concern. A higher AQI value means greater air pollution and a greater health concern. Different numbers on the AQI scale correspond to different levels of air quality, like "Good," "Moderate," "Unhealthy," or "Severe."
In the news
- Mumbai's Air Quality Worsens, Ranked Among Most Polluted Cities The Air Quality Index (AQI) is a number used to tell people how clean or polluted the air is, and what health effects might be a concern. A higher AQI value means greater air pollution and a greater health concern. Different numbers on the AQI scale correspond to different levels of air quality, like "Good," "Moderate," "Unhealthy," or "Severe."