What is the air quality trend in Howrah?

Over the past 3 days, Howrah had an average AQI of 118 based on station measurements. The worst day was 2026-09-06 with AQI 155.

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.

112

Current AQI
Unhealthy for sensitive groups Station

48 Hours 7 Days 14 Days 20 Days

CSV JSON

Air Quality Index Station

46h

PM2.5 Station

46h · 98 stations

Temperature GFS model

8pt

Precipitation GFS model

mm/day

Daily Summary Station

Date	AQI	Range	PM2.5 avg	Hours	Stations
2026-09-06	155	90–210	87.6 µg/m³	17h	41
2026-09-05	105	95–118	37.2 µg/m³	24h	96
2026-09-04	96	95–97	33.6 µg/m³	5h	93

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