What is the air quality trend in Howrah?

Over the past 8 days, Howrah had an average AQI of 142 based on station measurements. The worst day was 2026-10-16 with AQI 184.

How is Howrah air quality measured?

Air quality in Howrah 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 Howrah, India

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

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

140

Current AQI
Unhealthy for sensitive groups Station

48 Hours 7 Days 14 Days 20 Days

CSV JSON

Air Quality Index Station

112h

PM2.5 Station

112h · 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	128	81–239	65.7 µg/m³	5h	38
2026-10-20	107	87–144	38.0 µg/m³	17h	37
2026-10-19	113	81–151	40.2 µg/m³	12h	1
2026-10-18	113	102–135	40.3 µg/m³	9h	73
2026-10-17	157	89–196	91.0 µg/m³	19h	23
2026-10-16	184	173–189	118.9 µg/m³	19h	1
2026-10-15	156	78–179	85.0 µg/m³	18h	6
2026-10-14	179	149–190	110.3 µg/m³	13h	2

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