SmogRank / India / Bihar / Munger
Munger, month by month
Munger has a measured daily mean on 429 days since 19 February 2025. Its worst month was December 2025, at 164 US AQI (74.5 µg/m³), 89th of 3,006 cities on that month's world ranking. Its cleanest was August 2025, at 67 US AQI (17.7 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
8 months
| Month | Why |
|---|---|
| Oct 2026 | 4 of 12 days measured; a month needs 9. The others: 5 with no readings from the monitor, 2 with readings for part of the day (a day needs 18 hours), 1 with under 18 hours of readings or readings that failed our checks. |
| Sep 2026 | 10 of 30 days measured; a month needs 21. The others: 20 with readings for part of the day (a day needs 18 hours). |
| Aug 2026 | 9 of 31 days measured; a month needs 22. The others: 22 with under 18 hours of readings or readings that failed our checks. |
| Jul 2026 | 14 of 31 days measured; a month needs 22. The others: 17 with under 18 hours of readings or readings that failed our checks. |
| 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 | 21 of 31 days measured; a month needs 22. The others: 10 with under 18 hours of readings or readings that failed our checks. |
| Apr 2025 | 20 of 30 days measured; a month needs 21. The others: 10 with under 18 hours of readings or readings that failed our checks. |
| Feb 2025 | 8 of 28 days measured; a month needs 20. The others: 2 with under 18 hours of readings or readings that failed our checks. |
A day counts once 18 hours of it are measured; a month needs 70% of its days.
Munger's worst months
| Month | US AQI | World rank | Episode |
|---|---|---|---|
| December 2025 | 16474.5 µg/m³ | 89thof 3,006 | – |
| November 2025 | 15459.7 µg/m³ | 132ndof 2,715 | – |
| March 2025 | 13750.1 µg/m³ | 85thof 2,862 | Northern India, March and April 2025 |
| February 2026 | 12846.5 µg/m³ | 127thof 2,866 | – |
| October 2025 | 11440.8 µg/m³ | 135thof 2,614 | India and Pakistan, October 2025 |
| September 2025 | 10436.7 µg/m³ | 47thof 3,104 | – |
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.
Munger's worst days
| Day | US AQI | Episode |
|---|---|---|
| 2 Sept 2025 | 201126.0 µg/m³ | – |
| 9 Dec 2025 | 193116.0 µg/m³ | – |
| 13 Sept 2025 | 186106.0 µg/m³ | – |
| 8 Dec 2025 | 186106.0 µg/m³ | – |
| 17 Dec 2025 | 182100.0 µg/m³ | – |
| 10 Dec 2025 | 18299.1 µg/m³ | – |
| 1 Dec 2025 | 18097.2 µg/m³ | – |
| 28 Feb 2026 | 17995.7 µg/m³ | – |
| 5 Oct 2026 | 17690.8 µg/m³ | India, Bangladesh and Nepal, October 2026 |
| 11 Dec 2025 | 17489.0 µg/m³ | – |
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, Munger, India, 19 Feb 2025 – 6 Oct 2026. Monitor data from CPCB via OpenAQ; sources listed at smogrank.com/sources. smogrank.com/in/munger/history (accessed 12 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.
Munger now: the last 24 hours, its ranks today and the last 12 months day by day.
Updated 2026-10-12 18:07 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).