India Open Data Public government data, in plain language

Air quality in Tamil Nadu

10 monitoring stations across 4 cities.

Live Measured 1 hour ago · updated every hour

Highest reading by city

  • Gummidipoondi 129 1 station · highest is Fine dust (PM2.5)
  • Chennai 102 7 stations · highest is Coarse dust (PM10)
  • Thoothukudi 65 1 station · highest is Coarse dust (PM10)
  • Coimbatore 29 1 station · highest is Carbon monoxide

Every station in Tamil Nadu

Each station's own readings, exactly as published. The unit is not declared by the source — see the note on the national page.

Gummidipoondi

StationHighestValueOther readings
Anthoni Pillai Nagar, Gummidipoondi - TNPCBFine dust (PM2.5)129PM10 111NH3 5SO2 20NO2 22

Chennai

StationHighestValueOther readings
Velachery Res. Area, Chennai - CPCBCoarse dust (PM10)102OZONE 13CO 25NH3 9PM2.5 57
Arumbakkam, Chennai - TNPCBCoarse dust (PM10)100NO2 30SO2 1PM2.5 37NH3 1
Manali, Chennai - CPCBCoarse dust (PM10)84SO2 6OZONE 18NO2 10CO 25PM2.5 76NH3 6
Perungudi, Chennai - TNPCBCoarse dust (PM10)75PM2.5 26NO2 8NH3 4SO2 2CO 25OZONE 18
Kodungaiyur, Chennai - TNPCBCoarse dust (PM10)66CO 53OZONE 32NH3 2PM2.5 39NO2 14SO2 6
Royapuram, Chennai - TNPCBCoarse dust (PM10)64SO2 3CO 33NO2 14NH3 4PM2.5 34OZONE 30
Manali Village, Chennai - TNPCBCarbon monoxide43PM2.5 29PM10 42NH3 1SO2 12NO2 24

Thoothukudi

StationHighestValueOther readings
Meelavittan, Thoothukudi - TNPCBCoarse dust (PM10)65OZONE 30NO2 16SO2 5CO 31

Coimbatore

StationHighestValueOther readings
SIDCO Kurichi, Coimbatore - TNPCBCarbon monoxide29OZONE 20

Data belongs to the Government of India and is republished here under the terms of the source portals. Figures are shown exactly as published — never estimated, never filled in.

Sources: data.gov.in · CPCB · Agmarknet · India-WRIS