The Tamil Nadu Pollution Control Board (TNPCB) had installed air quality monitors at three places in the city. Air quality is monitored in terms of Respirable Suspended Particulate Matter (PM 10 and PM 2.5) count and SO2 and NO2 levels in the air.
The Tamil Nadu Pollution Control Board (TNPCB) had installed air quality monitors at three places in the city. Air quality is monitored in terms of Respirable Suspended Particulate Matter (PM 10 and PM 2.5) count and SO2 and NO2 levels in the air.