World Air Quality Index
It tells the air quality index(AQI) around you. The Air Quality Indexes are based on PM2.5, PM10, Ozone, NO2, SO2 and CO hourly measurements. The table below defines the Air Quality Index scale as defined by the US-EPA 2016 standard. 0~50: Good 51~100: Moderate 101~150: Unhealthy for Sensitive Groups 151 ~ 200: Unhealthy 201 ~ 300: Very Unhealthy 301 ~ : Hazardous Air Quality Data is provided by the World Air Quality Index (AQI) Project. To know more about Air Quality Index, check the following site.
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