What is the air quality trend in Sylhet?

Over the past 8 days, Sylhet had an average AQI of 99 based on station measurements. The worst day was 2026-05-26 with AQI 206.

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.

Current AQI
Moderate Station

48 Hours 7 Days 14 Days 20 Days

CSV JSON

Air Quality Index Station

146h

PM2.5 Station

146h · 1 station

Temperature GFS model

28pt

Precipitation GFS model

mm/day

Daily Summary Station

Date	AQI	Range	PM2.5 avg	PM10 avg	Hours	Stations
2026-05-29	64	57–70	17.9 µg/m³	50.4	14h	1
2026-05-28	74	42–139	22.5 µg/m³	50.0	21h	1
2026-05-27	83	52–153	26.8 µg/m³	61.0	22h	1
2026-05-26	206	28–492	171.9 µg/m³	198.1	22h	1
2026-05-25	112	32–494	71.6 µg/m³	96.3	22h	1
2026-05-24	128	32–495	87.3 µg/m³	117.3	21h	1
2026-05-23	79	28–279	40.3 µg/m³	77.9	17h	1
2026-05-22	52	28–81	14.5 µg/m³	69.3	7h	1

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