Ballygunge air quality · Kolkata, West Bengal
Eyes, nose and throat irritation are common in air like this
US AQI 187 (Unhealthy) at the WBPCB monitor in Ballygunge, Kolkata, the 5th highest of 7 Kolkata monitors reporting. India's official NAQI (CPCB) 253 (Poor). Main pollutant: PM2.5.
Updated
Last 24 hours: worst 332 at 1 am yesterday, best 71 at noon yesterday (US AQI)
Pollutants at Ballygunge
- PM2.5 · µg/m³1067.1× WHO limit
- PM10 · µg/m³1443.2× WHO limit
- NO₂ · µg/m³78.73.1× WHO limit
- O₃ · µg/m³10.3
- SO₂ · µg/m³10.2Under WHO limit
- CO · mg/m³1.23
This hour's readings at this monitor. WHO multiples use the 2021 24-hour guidelines.
Where Ballygunge ranks in Kolkata
- 5thmost polluted of 7 Kolkata monitors right now
- 108average US AQI, last 30 days
- 206Kolkata's city figure now
Most polluted right now: Bidhannagar 328 · Rabindra Bharati University 252 · Jadavpur 204 · Rabindra Sarobar 187 · Ballygunge 187.
Is it safe outside in Ballygunge right now?
Some members of the general public may feel health effects; sensitive groups may feel more serious effects.
Walking and commuting
Take careKeep outdoor walks short and choose quieter streets away from traffic.
Running and jogging
AvoidMove your run indoors or reschedule for a cleaner hour.
Cycling
LimitKeep rides short and easy, or ride indoors.
Children playing outside
LimitLimit outdoor play to short, gentle sessions. Move sports indoors.
Older adults and heart or lung conditions
AvoidAvoid exertion outdoors. Follow your doctor's action plan.
Open windows
AvoidKeep windows closed while the air is unhealthy.
Mask outdoors
RecommendedWear a well-fitted N95 or FFP2 mask outdoors. Cloth and surgical masks do little against fine particles.
Air purifier indoors
RecommendedRun a HEPA purifier in the room you spend most time in.
Based on the US EPA Air Quality Guide, applied to the current US AQI category. If you have symptoms, follow your doctor's advice.
When the air is worst in Ballygunge
Last 7 days, India timeOver the last 7 days, the air at this monitor was worst from 9 pm to midnight (average US AQI 187) and cleanest from noon to 3 pm (128). Plan walks, runs and open windows for the cleaner hours.
Ballygunge air quality, last 24 hours
Hourly US AQI, 22 of 24 hours, India timeIn the last 24 hours the US AQI at this monitor was highest at 1 am yesterday (332, Hazardous) and lowest at noon yesterday (71, Moderate).
Ballygunge air quality, last 30 days
Daily average, 28 days- 108average US AQI
- 190worst day, 8 November
- 52cleanest day, 29 October
- 4days above 150 (Unhealthy or worse)
Nearby monitors
All of KolkataKolkata and Howrah's worst monitors this winter →
Ballygunge air quality: common questions
What is the AQI in Ballygunge right now?
The US AQI at the WBPCB monitor in Ballygunge, Kolkata is 187 (Unhealthy), the 5th highest of 7 Kolkata monitors reporting. Over the last 24 hours it ranged from 71 (noon yesterday) to 332 (1 am yesterday). The main pollutant is PM2.5. The same air reads India's official NAQI (CPCB) 253 (Poor).
What time is the air worst in Ballygunge?
Over the last 7 days, from 9 pm to midnight India time, when the monitor averaged 187. The cleanest stretch was noon to 3 pm, at 128.
How has Ballygunge's air been over the last 30 days?
The monitor averaged a US AQI of 108 over 28 days with data. The worst day was 8 November at 190 and the cleanest 29 October at 52. 4 days were above 150 (Unhealthy or worse).
Where does Ballygunge's air quality data come from?
From the continuous monitoring station run by the West Bengal Pollution Control Board (WBPCB) in CPCB's national network. Good Air shows the US EPA AQI worked out from those readings, and CPCB's own National Air Quality Index (NAQI) beside it. Good Air does not estimate or adjust the readings.
Source: West Bengal Pollution Control Board (WBPCB), via CPCB's national monitoring network. One monitor shows the air around it, which can differ from a few streets away. Readings are published by the monitoring agency and may be revised.