Sector 1 air quality · Noida, Delhi NCR
This level threatens health across the whole population
US AQI 318 (Hazardous) at the UPPCB monitor in Sector 1, Noida, the 45th highest of 81 Delhi NCR monitors reporting. India's official NAQI (CPCB) 388 (Very Poor). Main pollutant: PM2.5.
Updated
Last 24 hours: worst 1830 at midnight yesterday, best 153 at 2 pm yesterday (US AQI)
Pollutants at Sector 1
- PM2.5 · µg/m³23415.6× WHO limit
- PM10 · µg/m³3116.9× WHO limit
- NO₂ · µg/m³95.83.8× WHO limit
- O₃ · µg/m³8.4
- SO₂ · µg/m³4.1Under WHO limit
- CO · mg/m³1.50
This hour's readings at this monitor. WHO multiples use the 2021 24-hour guidelines.
Where Sector 1 ranks in Delhi NCR
- 45thmost polluted of 81 Delhi NCR monitors right now
- 52ndof 68 NCR monitors, 6 to 19 October 2026 (average NAQI 134)
- 175average US AQI, last 30 days
- 573Noida's city figure now
In our study of every Delhi NCR monitor from 6 to 19 October 2026, Sector 1 ranked 52nd of 68, with a mean daily NAQI (CPCB's index) of 134, against 150 in mid-September. Its daily NAQI was above 200 (Poor) on 0 of the 14 days. See the full ranking.
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 1 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 1
Last 7 days, India timeOver the last 7 days, the air at this monitor was worst from midnight to 3 am (average US AQI 465) and cleanest from 1 pm to 4 pm (157). Plan walks, runs and open windows for the cleaner hours.
Sector 1 air quality, last 24 hours
Hourly US AQI, 23 of 24 hours, India timeIn the last 24 hours the US AQI at this monitor was highest at midnight yesterday (1830, Hazardous) and lowest at 2 pm yesterday (153, Unhealthy).
Sector 1 air quality, last 30 days
Daily average, 28 days- 175average US AQI
- 523worst day, 8 November
- 95cleanest day, 15 October
- 17days above 150 (Unhealthy or worse)
Nearby monitors
All of NoidaThe most polluted areas of Delhi NCR, ranked →
Sector 1 air quality: common questions
What is the AQI in Sector 1 right now?
The US AQI at the UPPCB monitor in Sector 1, Noida is 318 (Hazardous), the 45th highest of 81 Delhi NCR monitors reporting. Over the last 24 hours it ranged from 153 (2 pm yesterday) to 1830 (midnight yesterday). The main pollutant is PM2.5. The same air reads India's official NAQI (CPCB) 388 (Very Poor).
What time is the air worst in Sector 1?
Over the last 7 days, from midnight to 3 am India time, when the monitor averaged 465. The cleanest stretch was 1 pm to 4 pm, at 157.
Is Sector 1 one of the most polluted areas in Delhi NCR?
From 6 to 19 October 2026, Sector 1 ranked 52nd of 68 Delhi NCR monitors by mean daily NAQI, CPCB's index (134). Right now it is 45th of 81. See the full ranking.
How has Sector 1's air been over the last 30 days?
The monitor averaged a US AQI of 175 over 28 days with data. The worst day was 8 November at 523 and the cleanest 15 October at 95. 17 days were above 150 (Unhealthy or worse).
Where does Sector 1'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.