AQI scale

The Air Quality Index (AQI) is a standardized tool that communicates how clean or polluted the air is and the potential health effects. It ranges from 0 to 500, with lower values indicating better air quality. Values are divided into categories like "Good" (0-50), meaning there's little or no risk, up to "Hazardous" (301-500), where serious health effects or emergencies can occur. The AQI considers pollutants such as ozone, particles, carbon monoxide, sulfur dioxide, and nitrogen dioxide, providing a clear way to understand daily air quality and protect health.