What is the air quality trend in Chilmāri?

Over the past 2 days, Chilmāri had an average AQI of 175 based on station measurements. The worst day was 2026-10-20 with AQI 177.

How is Chilmāri air quality measured?

Air quality in Chilmāri 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 Chilmāri, Bangladesh

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

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

119

Current AQI
Unhealthy for sensitive groups CAMS model

48 Hours 7 Days 14 Days 20 Days

CSV JSON

Air Quality Index Station

11h

PM2.5 Station

11h · 1 station

Temperature GFS model

8pt

Precipitation GFS model

mm/day

Daily Summary Station

Date	AQI	Range	PM2.5 avg	PM10 avg	Hours	Stations
2026-10-21	174	170–178	99.2 µg/m³	78.6	5h	1
2026-10-20	177	172–180	105.9 µg/m³	97.3	6h	1

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