SmogRank / India / Odisha / Belpahar
Belpahar, month by month
Belpahar has a measured daily mean on 503 days since 19 February 2025. Its worst month was March 2025, at 151 US AQI (55.8 µg/m³), 60th of 2,862 cities on that month's world ranking. Its cleanest was July 2025, at 58 US AQI (12.7 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
6 months
| Month | Why |
|---|---|
| Oct 2026 | 6 of 12 days measured; a month needs 9. The others: 5 with no readings from the monitor, 1 with readings for part of the day (a day needs 18 hours). |
| May 2026 | 20 of 31 days measured; a month needs 22. The others: 11 with under 18 hours of readings or readings that failed our checks. |
| Jan 2026 | 19 of 31 days measured; a month needs 22. The others: 12 with under 18 hours of readings or readings that failed our checks. |
| Jun 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. |
| Apr 2025 | 18 of 30 days measured; a month needs 21. The others: 12 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.
Belpahar's worst months
| Month | US AQI | World rank | Episode |
|---|---|---|---|
| March 2025 | 15155.8 µg/m³ | 60thof 2,862 | India, March 2025 |
| December 2025 | 14653.8 µg/m³ | 182ndof 3,006 | – |
| February 2026 | 13147.6 µg/m³ | 122ndof 2,866 | – |
| March 2026 | 12645.7 µg/m³ | 107thof 2,971 | – |
| November 2025 | 12043.1 µg/m³ | 196thof 2,715 | – |
| April 2026 | 10537.3 µg/m³ | 155thof 2,941 | Eastern India, April 2026 |
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.
Belpahar's worst days
| Day | US AQI | Episode |
|---|---|---|
| 7 Mar 2026 | 204129.0 µg/m³ | – |
| 6 Mar 2026 | 183101.0 µg/m³ | – |
| 14 Mar 2026 | 17793.0 µg/m³ | – |
| 12 Mar 2025 | 17792.1 µg/m³ | India, March 2025 |
| 28 Jan 2026 | 17488.7 µg/m³ | – |
| 13 Mar 2025 | 17284.8 µg/m³ | India, March 2025 |
| 27 Jan 2026 | 17184.4 µg/m³ | – |
| 13 Mar 2026 | 17183.9 µg/m³ | – |
| 25 Jan 2026 | 17083.1 µg/m³ | – |
| 23 Dec 2025 | 16980.6 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, Belpahar, India, 19 Feb 2025 – 7 Oct 2026. Monitor data from CPCB via OpenAQ; sources listed at smogrank.com/sources. smogrank.com/in/belpahar/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.
Belpahar now: the last 24 hours, its ranks today and the last 12 months day by day.
Updated 2026-10-12 22:07 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).