What is the air quality trend in Chilmāri?

Over the past 14 days, Chilmāri had an average AQI of 70 based on station measurements. The worst day was 2026-07-15 with AQI 134.

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.

Current AQI
Moderate CAMS model

48 Hours 7 Days 14 Days 20 Days

CSV JSON

Air Quality Index Station

274h

PM2.5 Station

274h · 1 station

Temperature GFS model

56pt

Precipitation GFS model

mm/day

Daily Summary Station

Date	AQI	Range	PM2.5 avg	Hours	Stations
2026-07-21	63	47–119	17.8 µg/m³	21h	1
2026-07-20	43	24–70	10.7 µg/m³	23h	1
2026-07-19	78	65–93	25.0 µg/m³	22h	1
2026-07-18	68	59–75	19.8 µg/m³	22h	1
2026-07-17	80	62–89	26.1 µg/m³	23h	1
2026-07-16	57	39–76	15.2 µg/m³	22h	1
2026-07-15	134	76–163	57.2 µg/m³	9h	1
2026-07-14	111	76–162	43.1 µg/m³	15h	1
2026-07-13	20	13–31	4.8 µg/m³	7h	1
2026-07-12	57	35–71	15.5 µg/m³	21h	1
2026-07-11	68	59–79	20.2 µg/m³	22h	1
2026-07-10	89	65–107	30.2 µg/m³	23h	1
2026-07-09	69	32–106	21.2 µg/m³	22h	1
2026-07-08	50	27–64	12.7 µg/m³	22h	1

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