What is the air quality trend in Sylhet?

Over the past 8 days, Sylhet had an average AQI of 139 based on station measurements. The worst day was 2026-10-10 with AQI 304.

How is Sylhet air quality measured?

Air quality in Sylhet 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 Sylhet, Bangladesh

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

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

146

Current AQI
Unhealthy for sensitive groups CAMS model

48 Hours 7 Days 14 Days 20 Days

CSV JSON

Air Quality Index Station

145h

PM2.5 Station

145h · 1 station

Temperature GFS model

56pt

Precipitation GFS model

mm/day

Daily Summary Station

Date	AQI	Range	PM2.5 avg	PM10 avg	Hours	Stations
2026-10-18	98	98–98	34.6 µg/m³	76.6	17h	1
2026-10-17	84	57–132	27.6 µg/m³	75.5	23h	1
2026-10-16	82	53–156	26.8 µg/m³	73.0	22h	1
2026-10-15	149	64–495	91.8 µg/m³	160.6	17h	1
2026-10-10	304	304–304	254.5 µg/m³	142.9	8h	1
2026-10-09	226	49–304	178.7 µg/m³	55.6	22h	1
2026-10-08	62	40–87	17.8 µg/m³	47.3	21h	1
2026-10-07	109	41–163	40.6 µg/m³	110.2	15h	1

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