What is the air quality trend in Chattogram?

Over the past 8 days, Chattogram had an average AQI of 100 based on station measurements. The worst day was 2026-07-22 with AQI 148.

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.

Current AQI
Moderate Station

48 Hours 7 Days 14 Days 20 Days

CSV JSON

Air Quality Index Station

144h

PM2.5 Station

144h · 1 station

Temperature GFS model

28pt

Precipitation GFS model

mm/day

Daily Summary Station

Date	AQI	Range	PM2.5 avg	PM10 avg	Hours	Stations
2026-07-22	148	148–148	54.7 µg/m³	15.4	1h	1
2026-07-21	84	2–326	54.6 µg/m³	49.8	20h	1
2026-07-20	51	10–184	17.6 µg/m³	35.4	18h	1
2026-07-19	79	33–348	33.3 µg/m³	30.4	23h	1
2026-07-18	124	49–311	67.0 µg/m³	33.7	19h	1
2026-07-17	133	45–493	84.7 µg/m³	91.4	20h	1
2026-07-16	90	26–298	45.7 µg/m³	56.5	23h	1
2026-07-15	97	29–241	43.6 µg/m³	44.5	20h	1

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