Air Quality Lab — Chattogram, Bangladesh
Air Quality Profile·
Chattogram reports an annual PM2.5 of 69.9 µg/m³. That's above the EU annual limit of 25 µg/m³ — long-term exposure here carries documented health trade-offs.
Chattogram
Bangladesh
BangladeshAnnual Average
Very UnhealthyWHO annual classification
69.9µg/m³
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
PM2.5
136136 µg/m³ — Hazardous
133133 µg/m³ — Hazardous
9898 µg/m³ — Hazardous
4848 µg/m³ — Unhealthy
3939 µg/m³ — Unhealthy
2727 µg/m³ — Poor
2525 µg/m³ — Moderate
2424 µg/m³ — Moderate
2828 µg/m³ — Poor
6262 µg/m³ — Very Unhealthy
101101 µg/m³ — Hazardous
118118 µg/m³ — Hazardous
Jan
Feb
Mar
Apr
May
Jun
136136 µg/m³ — Hazardous
133133 µg/m³ — Hazardous
9898 µg/m³ — Hazardous
4848 µg/m³ — Unhealthy
3939 µg/m³ — Unhealthy
2727 µg/m³ — Poor
Jul
Aug
Sep
Oct
Nov
Dec
2525 µg/m³ — Moderate
2424 µg/m³ — Moderate
2828 µg/m³ — Poor
6262 µg/m³ — Very Unhealthy
101101 µg/m³ — Hazardous
118118 µg/m³ — Hazardous
Best months: Jun–AugWorst months: Jan–Feb, Dec
Moderate15–25 µg/m³Poor25–35 µg/m³Unhealthy35–50 µg/m³Very Unhealthy50–75 µg/m³Hazardous>75 µg/m³
Based on WUSTL PM2.5 dataset (2020–2024) · WHO 2021 thresholds
Confidence: ●●●
How air quality compares
Compared across Bangladesh
Chattogram: 69.9 µg/m³. Typical range in Bangladesh: 52.7–65.2 µg/m³. Low anchor: Bāndarban, 32.6 µg/m³. High anchor: Dhaka, 80.6 µg/m³.
97 cities tracked