SmogRank / World / Asia / Nepal / Madhesh
Most polluted cities in Madhesh, Nepal
0 measured cities, this year.
No city has enough measurements for this window yet.
The US EPA's Air Quality Index for PM2.5 (2024 breakpoints). Show values as: µg/m³ · US AQI · India AQI · China AQI · European AQI · UK DAQI · Canada AQHI+. About the scales
Estimated: cities without a monitor
Madhesh cities we can't measure, with model estimates for the last 7 days. Listed by population, not ranked: estimates aren't precise enough to rank. Model estimates from the Copernicus Atmosphere Monitoring Service (CAMS), adjusted to measured cities nearby where there are any. Adjusted, a single day lands within ×1.5 of what a monitor would read about two times in three; unadjusted, it can be off by half or double. Treat them as a guide, not a measurement.
| City | 7-day estimate |
|---|---|
| Birgañj | ≈ 23 µg/m³ |
| Janakpur | ≈ 29 µg/m³ |
| Lahān | ≈ 26 µg/m³ |
| Rājbirāj | ≈ 27 µg/m³ |
| Gaur | ≈ 32 µg/m³ |
| Siraha | ≈ 26 µg/m³ |
| Jaleshwar | ≈ 32 µg/m³ |
| Malaṅgawā | ≈ 32 µg/m³ |
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SmogRank, most polluted cities in Madhesh, Nepal, PM2.5, this year to 2 Oct 2026, 04:00 UTC, smogrank.com/np/region/madhesh?w=year.
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Updated 2026-10-02 04:07 UTC. Values are PM2.5 (fine particles), the median of each city's monitors, as the US AQI PM2.5 sub-index.