SmogRank / India / Bihar / Bhāgalpur
Bhāgalpur, month by month
Bhāgalpur has a measured daily mean on 513 days since 19 February 2025. Its worst month was December 2025, at 155 US AQI (61.5 µg/m³), 140th of 3,006 cities on that month's world ranking. Its cleanest was May 2025, at 82 US AQI (26.0 µg/m³).
Every month since 2025
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
Months without a mean, and why
4 months
| Month | Why |
|---|---|
| Oct 2026 | 5 of 12 days measured; a month needs 9. The others: 5 with no readings from the monitors, 2 with readings for part of the day (a day needs 18 hours). |
| Jan 2026 | 21 of 31 days measured; a month needs 22. The others: 10 with under 18 hours of readings or readings that failed our checks. |
| Jul 2025 | 20 of 31 days measured; a month needs 22. The others: 11 with under 18 hours of readings or readings that failed our checks. |
| Feb 2025 | 10 of 28 days measured; a month needs 20. |
A day counts once 18 hours of it are measured; a month needs 70% of its days.
Bhāgalpur's worst months
| Month | US AQI | World rank | Episode |
|---|---|---|---|
| December 2025 | 15561.5 µg/m³ | 140thof 3,006 | – |
| October 2025 | 12846.6 µg/m³ | 100thof 2,614 | India and Pakistan, October 2025 |
| August 2026 | 12043.3 µg/m³ | 35thof 2,896 | Bihar, Odisha and Uttar Pradesh, India, August 2026 |
| March 2025 | 11942.8 µg/m³ | 130thof 2,862 | – |
| September 2026 | 11440.9 µg/m³ | 52ndof 2,997 | North-eastern India and Bhutan, September 2026 |
| March 2026 | 11340.4 µg/m³ | 143rdof 2,971 | – |
Monthly means over the days measured; finished months only. World rank: its place on that month's world ranking of every city with enough days. Each month opens that ranking.
Bhāgalpur's worst days
| Day | US AQI | Episode |
|---|---|---|
| 23 Aug 2026 | 207132.0 µg/m³ | Bihar, Odisha and Uttar Pradesh, India, August 2026 |
| 2 Aug 2025 | 199124.0 µg/m³ | – |
| 9 Dec 2025 | 195118.5 µg/m³ | – |
| 20 Oct 2025 | 189109.3 µg/m³ | India and Pakistan, October 2025 |
| 1 Mar 2025 | 186105.8 µg/m³ | – |
| 8 Dec 2025 | 18097.2 µg/m³ | – |
| 6 Sept 2026 | 17589.8 µg/m³ | North-eastern India and Bhutan, September 2026 |
| 22 Feb 2025 | 17285.3 µg/m³ | Bihar, India, February 2025 |
| 20 Apr 2026 | 17184.7 µg/m³ | – |
| 12 Aug 2025 | 17083.1 µg/m³ | Odisha, Bihar and West Bengal, India, August 2025 |
Daily means, the highest since 19 Feb 2025; the WHO's daily guideline is 15 µg/m³. Each date opens that day's world ranking, and each episode the bad-air spell it was part of.
Use this history
SmogRank, PM2.5 monthly and daily means, Bhāgalpur, India, 19 Feb 2025 – 6 Oct 2026. Monitor data from CPCB via OpenAQ; sources listed at smogrank.com/sources. smogrank.com/in/bhagalpur/history (accessed 13 Oct 2026).
You're welcome to reuse a single chart, image or figure with this citation and a link. Terms. Raw monitor readings in bulk are published by OpenAQ, under each provider's licence.
Bhāgalpur now: the last 24 hours, its ranks today and the last 12 months day by day.
Updated 2026-10-13 03:07 UTC. Values are PM2.5 (fine particles), the median of each city's monitors, as the US AQI PM2.5 sub-index. Some low-cost readings: Sensor.Community, ODbL (data and licence). Some readings: Uzhydromet (Uzbekistan's Hydrometeorological Service); Department of Environment, Nepal; Vietnam's government monitors; Aurassure; Umhverfisstofnun (Environment Agency of Iceland); RMCAB (Secretaría Distrital de Ambiente, Bogotá); Love My Air (City and County of Denver), no reuse terms published (why we use them).