CRRI Mathura Road air quality · Delhi, Delhi NCR
Severe pollution can affect lungs within minutes, not just hours
US AQI 567 (Hazardous) at the IITM monitor in CRRI Mathura Road, also known as Central Road Research Institute, Mathura Road, Delhi, the 9th highest of 81 Delhi NCR monitors reporting. India's official NAQI (CPCB) 444 (Severe). Main pollutant: PM2.5.
Updated
Last 24 hours: worst 1379 at 4 am yesterday, best 179 at noon yesterday (US AQI)
Pollutants at CRRI Mathura Road
- PM2.5 · µg/m³35923.9× WHO limit
- PM10 · µg/m³52611.7× WHO limit
- NO₂ · µg/m³17.3Under WHO limit
- O₃ · µg/m³13.4
- CO · mg/m³3.71
This hour's readings at this monitor. WHO multiples use the 2021 24-hour guidelines.
Where CRRI Mathura Road ranks in Delhi NCR
- 9thmost polluted of 81 Delhi NCR monitors right now
- 40thof 68 NCR monitors, 6 to 19 October 2026 (average NAQI 161)
- 222average US AQI, last 30 days
- 325Delhi's city figure now
In our study of every Delhi NCR monitor from 6 to 19 October 2026, CRRI Mathura Road ranked 40th of 68 and 25th of 45 in Delhi, with a mean daily NAQI (CPCB's index) of 161, against 134 in mid-September. Its daily NAQI was above 200 (Poor) on 4 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 CRRI Mathura Road 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 CRRI Mathura Road
Last 7 days, India timeOver the last 7 days, the air at this monitor was worst from 8 pm to 11 pm (average US AQI 497) and cleanest from 11 am to 2 pm (245). Plan walks, runs and open windows for the cleaner hours.
CRRI Mathura Road air quality, last 24 hours
Hourly US AQI, 19 of 24 hours, India timeIn the last 24 hours the US AQI at this monitor was highest at 4 am yesterday (1379, Hazardous) and lowest at noon yesterday (179, Unhealthy).
CRRI Mathura Road air quality, last 30 days
Daily average, 28 days- 222average US AQI
- 497worst day, 8 November
- 93cleanest day, 11 October
- 21days above 150 (Unhealthy or worse)
Nearby monitors
All of DelhiThe most polluted areas of Delhi NCR, ranked →
CRRI Mathura Road air quality: common questions
What is the AQI in CRRI Mathura Road right now?
The US AQI at the IITM monitor in CRRI Mathura Road, Delhi is 567 (Hazardous), the 9th highest of 81 Delhi NCR monitors reporting. Over the last 24 hours it ranged from 179 (noon yesterday) to 1379 (4 am yesterday). The main pollutant is PM2.5. The same air reads India's official NAQI (CPCB) 444 (Severe).
What time is the air worst in CRRI Mathura Road?
Over the last 7 days, from 8 pm to 11 pm India time, when the monitor averaged 497. The cleanest stretch was 11 am to 2 pm, at 245.
Is CRRI Mathura Road one of the most polluted areas in Delhi NCR?
From 6 to 19 October 2026, CRRI Mathura Road ranked 40th of 68 Delhi NCR monitors by mean daily NAQI, CPCB's index (161), and 25th of 45 in Delhi. Right now it is 9th of 81. See the full ranking.
How has CRRI Mathura Road's air been over the last 30 days?
The monitor averaged a US AQI of 222 over 28 days with data. The worst day was 8 November at 497 and the cleanest 11 October at 93. 21 days were above 150 (Unhealthy or worse).
Where does CRRI Mathura Road's air quality data come from?
From the continuous monitoring station run by the Indian Institute of Tropical Meteorology (IITM) 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. CRRI Mathura Road is also known as Central Road Research Institute, Mathura Road.
Source: Indian Institute of Tropical Meteorology (IITM), 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.