What is the air quality trend in Chattogram?

Over the past 3 days, Chattogram had an average AQI of 88 based on station measurements. The worst day was 2026-07-22 with AQI 126.

How is Chattogram air quality measured?

Air quality in Chattogram 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 Chattogram, Bangladesh

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

Historical PM2.5 and AQI trend from monitoring stations near Chattogram, Bangladesh.

127

Current AQI
Unhealthy for sensitive groups Station

48 Hours 7 Days 14 Days 20 Days

CSV JSON

Air Quality Index Station

37h

PM2.5 Station

37h · 1 station

Temperature GFS model

8pt

Precipitation GFS model

mm/day

Daily Summary Station

Date	AQI	Range	PM2.5 avg	PM10 avg	Hours	Stations
2026-07-22	126	105–148	45.9 µg/m³	24.2	2h	1
2026-07-21	84	2–326	54.6 µg/m³	49.8	20h	1
2026-07-20	55	10–184	19.6 µg/m³	36.4	15h	1

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