What is the air quality trend in New Delhi?

Over the past 3 days, New Delhi had an average AQI of 194 based on station measurements. The worst day was 2026-10-21 with AQI 237.

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.

219

Current AQI
Very unhealthy Station

48 Hours 7 Days 14 Days 20 Days

CSV JSON

Air Quality Index Station

30h

PM2.5 Station

30h · 1 station

Temperature GFS model

8pt

Precipitation GFS model

mm/day

Daily Summary Station

Date	AQI	Range	PM2.5 avg	Hours	Stations
2026-10-21	237	215–256	186.6 µg/m³	3h	2
2026-10-20	210	153–335	142.3 µg/m³	14h	3
2026-10-19	137	70–169	58.8 µg/m³	13h	2

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