What is the air quality trend in New Delhi?

Over the past 8 days, New Delhi had an average AQI of 162 based on station measurements. The worst day was 2026-10-21 with AQI 224.

How is New Delhi air quality measured?

Air quality in New Delhi is measured by ground-level monitoring stations that report PM2.5 and PM10 concentrations hourly. CERNS.IO aggregates readings from nearby stations and converts PM2.5 to the US EPA Air Quality Index (AQI) scale.

Air Quality History for New Delhi, India

Name: New Delhi Air Quality History
Creator: CERNS.IO
License: https://creativecommons.org/licenses/by/4.0/

Historical PM2.5 and AQI trend from monitoring stations near New Delhi, India.

233

Current AQI
Very unhealthy Station

48 Hours 7 Days 14 Days 20 Days

CSV JSON

Air Quality Index Station

108h

PM2.5 Station

108h · 2 stations

Temperature GFS model

28pt

Precipitation GFS model

mm/day

Daily Summary Station

Date	AQI	Range	PM2.5 avg	Hours	Stations
2026-10-21	224	186–256	170.8 µg/m³	4h	2
2026-10-20	210	153–335	142.3 µg/m³	14h	3
2026-10-19	143	70–169	61.7 µg/m³	19h	2
2026-10-18	150	69–262	76.3 µg/m³	15h	2
2026-10-17	170	151–193	92.0 µg/m³	19h	2
2026-10-16	120	41–185	52.3 µg/m³	15h	2
2026-10-15	123	53–175	50.7 µg/m³	15h	3
2026-10-14	159	116–187	78.0 µg/m³	7h	3

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