Air Quality Lab — Biratnagar, Nepal
Air Quality Profile·
Biratnagar reports an annual PM2.5 of 48.0 µg/m³. That's above the EU annual limit of 25 µg/m³ — long-term exposure here carries documented health trade-offs.
Biratnagar
Nepal
NepalAnnual Average
UnhealthyWHO annual classification
48.0µg/m³
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
PM2.5
6262 µg/m³ — Very Unhealthy
8686 µg/m³ — Hazardous
6060 µg/m³ — Very Unhealthy
5858 µg/m³ — Very Unhealthy
3737 µg/m³ — Unhealthy
3838 µg/m³ — Unhealthy
3030 µg/m³ — Poor
2929 µg/m³ — Poor
2929 µg/m³ — Poor
3636 µg/m³ — Unhealthy
5858 µg/m³ — Very Unhealthy
5454 µg/m³ — Very Unhealthy
Jan
Feb
Mar
Apr
May
Jun
6262 µg/m³ — Very Unhealthy
8686 µg/m³ — Hazardous
6060 µg/m³ — Very Unhealthy
5858 µg/m³ — Very Unhealthy
3737 µg/m³ — Unhealthy
3838 µg/m³ — Unhealthy
Jul
Aug
Sep
Oct
Nov
Dec
3030 µg/m³ — Poor
2929 µg/m³ — Poor
2929 µg/m³ — Poor
3636 µg/m³ — Unhealthy
5858 µg/m³ — Very Unhealthy
5454 µg/m³ — Very Unhealthy
Best months: Jul–SepWorst months: Jan–Mar
Poor25–35 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 Nepal
Biratnagar: 48.0 µg/m³. Typical range in Nepal: 31.0–45.5 µg/m³. Low anchor: Dārchulā, 22.5 µg/m³. High anchor: Gaur, 55.8 µg/m³.
40 cities tracked