Sector 39 air quality · Noida, Delhi NCR
Visibility may be dangerously low; drive slowly or not at all
US AQI 824 (Hazardous) at the UPPCB monitor in Sector 39, Noida, the 2nd highest of 81 Delhi NCR monitors reporting. India's official NAQI (CPCB) 498 (Severe). Main pollutant: PM2.5.
Updated
Pollutants at Sector 39
- PM2.5 · µg/m³48832.5× WHO limit
- PM10 · µg/m³79317.6× WHO limit
- NO₂ · µg/m³43.71.7× WHO limit
- O₃ · µg/m³5.3
- SO₂ · µg/m³16.1Under WHO limit
- CO · mg/m³1.70
This hour's readings at this monitor. WHO multiples use the 2021 24-hour guidelines.
Where Sector 39 ranks in Delhi NCR
- 2ndmost polluted of 81 Delhi NCR monitors right now
- 273average US AQI, last 30 days
- 573Noida's city figure now
This monitor started reporting after our October study, so it is not in that ranking yet. See the study.
Most polluted right now: Sector 110 932 · Sector 39 824 · Teri Gram 677 · North Campus, DU 665 · Chandni Chowk 664.
Is it safe outside in Sector 39 right now?
Health warning of emergency conditions: everyone is more likely to be affected.
Walking and commuting
AvoidStay indoors. Postpone non-essential trips.
Running and jogging
AvoidSkip strenuous exercise, even indoors if the air inside is not filtered.
Cycling
AvoidAvoid riding outdoors.
Children playing outside
AvoidKeep children indoors in a room with filtered air.
Older adults and heart or lung conditions
AvoidStay indoors with filtered air and seek care if symptoms appear.
Open windows
AvoidSeal gaps around doors and windows if you can.
Mask outdoors
EssentialN95 or FFP2 mask essential outdoors.
Air purifier indoors
EssentialRun a HEPA purifier on high in a closed room.
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 Sector 39
Last 7 days, India timeOver the last 7 days, the air at this monitor was worst from 1 am to 4 am (average US AQI 351) and cleanest from 3 pm to 6 pm (209). Plan walks, runs and open windows for the cleaner hours.
Sector 39 air quality, last 30 days
Daily average, 6 days- 273average US AQI
- 349worst day, 2 November
- 199cleanest day, 6 November
- 6days above 150 (Unhealthy or worse)
Nearby monitors
All of NoidaThe most polluted areas of Delhi NCR, ranked →
Sector 39 air quality: common questions
What is the AQI in Sector 39 right now?
The US AQI at the UPPCB monitor in Sector 39, Noida is 824 (Hazardous), the 2nd highest of 81 Delhi NCR monitors reporting. The main pollutant is PM2.5. The same air reads India's official NAQI (CPCB) 498 (Severe).
What time is the air worst in Sector 39?
Over the last 7 days, from 1 am to 4 am India time, when the monitor averaged 351. The cleanest stretch was 3 pm to 6 pm, at 209.
How has Sector 39's air been over the last 30 days?
The monitor averaged a US AQI of 273 over 6 days with data. The worst day was 2 November at 349 and the cleanest 6 November at 199. 6 days were above 150 (Unhealthy or worse).
Where does Sector 39's air quality data come from?
From the continuous monitoring station run by the Uttar Pradesh Pollution Control Board (UPPCB) 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: Uttar Pradesh Pollution Control Board (UPPCB), 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.