City-wise Status of Air Quality Index (AQI) under National Clean Air Programme (NCAP) in Bihar (2019 to 2021) | |||||||
State | Cities | 2019 | 2020 | 2021 | |||
Good Days (AQI : 0-200) | Bad Days (Poor/ Very- Poor/Severe) (AQI: >200) | Good Days (AQI : 0-200) | Bad Days (Poor/ Very- Poor/Severe) (AQI: >200) | Good Days (AQI : 0-200) | Bad Days (Poor/ Very- Poor/Severe) (AQI: >200) | ||
Bihar | |||||||
India |