Ballygunge, Kolkata - WBPCB
Kolkata, West_Bengal. Readings are pollutant sub-indices (min / max / average) from the CPCB monitoring network—not a single composite national AQI headline.
Last update (source): · Coordinates: 22.5367507, 88.3638022
Showing data from our last import: .
| Pollutant | Min | Max | Average |
|---|---|---|---|
| CO | 9 | 52 | 14 |
| NH3 | 7 | 13 | 9 |
| NO2 | 16 | 80 | 29 |
| OZONE | 11 | 49 | 38 |
| PM10 | 49 | 107 | 75 |
| PM2.5 | 44 | 100 | 65 |
| SO2 | 12 | 30 | 18 |
FAQ
- What do min, max, and average mean here?
- These are pollutant sub-index values for the monitoring station as held in DeshSeva. They are not the same as a single composite National AQI headline number; readings are per pollutant (e.g. PM2.5, PM10).
- Where does this data come from?
- DeshSeva can sync snapshots into our database on a schedule; otherwise this page may fetch live readings depending on setup.
- Why do some values show NA?
- When a pollutant is not reported or not available for that interval, the source may publish NA for min, max, or average.
For methodology and official readings, see CPCB.