SmogRank / Countries / India / Bihar
Most polluted cities in Bihar, India
7 measured cities ranked by PM2.5, last 7 days. Worst: Chāpra at 53.9 µg/m³, #23 in the world.
| # | City | µg/m³ | |
|---|---|---|---|
| 1 | Chāpra Bihar | 53.9 | |
| 2 | Arāria Bihar | 51.0 | |
| 3 | Sasarām Bihar | 29.6 | |
| 4 | Gaya Bihar | 24.5 | |
| 5 | Hājīpur Bihar | 19.8 | |
| 6 | Rājgīr Bihar | 16.4 | |
| 7 | Bettiah Bihar | 13.8 |
Good 0–9.0Moderate 9.1+Unhealthy for sensitive groups 35.5+Unhealthy 55.5+Very unhealthy 125.5+Hazardous 225.5+No data
Estimated: cities without a monitor
Bihar 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 |
|---|---|
| Darbhanga estimated | ≈ 24 µg/m³ |
| Dinapur Nizamat estimated | ≈ 24 µg/m³ |
| Dinapore estimated | ≈ 24 µg/m³ |
| Madhurampur Dehri estimated | ≈ 19 µg/m³ |
| Bagaha estimated | ≈ 23 µg/m³ |
| Jamālpur estimated | ≈ 19 µg/m³ |
| Jahānābād estimated | ≈ 25 µg/m³ |
| Luckeesarai estimated | ≈ 23 µg/m³ |
| Nawāda estimated | ≈ 20 µg/m³ |
| Bagaha estimated | ≈ 16 µg/m³ |
| Jamūī estimated | ≈ 16 µg/m³ |
| Bāruni estimated | ≈ 22 µg/m³ |
| Phulwari Sharif estimated | ≈ 24 µg/m³ |
| Madhubani estimated | ≈ 30 µg/m³ |
| Benipur estimated | ≈ 24 µg/m³ |
| Barauni estimated | ≈ 22 µg/m³ |
| Bihāt estimated | ≈ 22 µg/m³ |
| Sītāmarhi estimated | ≈ 29 µg/m³ |
| Gopālganj estimated | ≈ 27 µg/m³ |
| Supaul estimated | ≈ 22 µg/m³ |
| Sheikhpura estimated | ≈ 23 µg/m³ |
| Bārh estimated | ≈ 23 µg/m³ |
| Mokameh estimated | ≈ 23 µg/m³ |
| Bangaon estimated | ≈ 22 µg/m³ |
| Masaurhi Buzurg estimated | ≈ 24 µg/m³ |
| Teghra estimated | ≈ 22 µg/m³ |
| Raxaul estimated | ≈ 27 µg/m³ |
| Madhepura estimated | ≈ 23 µg/m³ |
| Dumraon estimated | ≈ 24 µg/m³ |
| Sultānganj estimated | ≈ 19 µg/m³ |
| Daudnagar estimated | ≈ 24 µg/m³ |
| Arwal estimated | ≈ 23 µg/m³ |
| Khagaul estimated | ≈ 24 µg/m³ |
| Hilsa estimated | ≈ 24 µg/m³ |
| Fatwa estimated | ≈ 24 µg/m³ |
| Forbesganj estimated | ≈ 30 µg/m³ |
| Bhabhua estimated | ≈ 21 µg/m³ |
| Khagaria estimated | ≈ 20 µg/m³ |
| Narkatiāganj estimated | ≈ 21 µg/m³ |
| Naugachhia estimated | ≈ 18 µg/m³ |
Updated 2026-10-01 08:07 UTC. Values are PM2.5 in µg/m³ (fine particles), the median of each city's monitors.