SmogRank / Japan / Gifu / Takayama
Takayama, month by month
Takayama has a measured daily mean on 997 days since 28 July 2023. Its worst month was July 2026, at 59 US AQI (13.3 µg/m³), 682nd of 2,784 cities on that month's world ranking. Its cleanest was September 2026, at 25 US AQI (4.5 µg/m³).
Every month since 2023
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
7 months
| Month | Why |
|---|---|
| May 2025 | 17 of 31 days measured; a month needs 22. The others: 14 with under 18 hours of readings or readings that failed our checks. |
| Apr 2025 | No day measured. The others: 30 with under 18 hours of readings or readings that failed our checks. |
| Mar 2025 | No day measured. The others: 31 with under 18 hours of readings or readings that failed our checks. |
| Feb 2025 | No day measured. The others: 28 with under 18 hours of readings or readings that failed our checks. |
| Jan 2025 | No day measured. The others: 31 with under 18 hours of readings or readings that failed our checks. |
| Dec 2024 | 16 of 31 days measured; a month needs 22. The others: 15 with under 18 hours of readings or readings that failed our checks. |
| Jul 2023 | 4 of 31 days measured; a month needs 22. |
A day counts once 18 hours of it are measured; a month needs 70% of its days.
Takayama's worst months
| Month | US AQI | World rank | Episode |
|---|---|---|---|
| July 2026 | 5913.3 µg/m³ | 682ndof 2,784 | Japan and South Korea, July 2026 |
| July 2025 | 5410.5 µg/m³ | 1,155thof 2,889 | – |
| April 2024 | 5310.1 µg/m³ | 1,005thof 2,520 | – |
| May 2026 | 5310.0 µg/m³ | 773rdof 2,874 | – |
| March 2026 | 529.6 µg/m³ | 1,755thof 2,971 | – |
| August 2025 | 529.4 µg/m³ | 1,374thof 2,901 | – |
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.
Takayama's worst days
| Day | US AQI | Episode |
|---|---|---|
| 22 Jul 2026 | 8728.2 µg/m³ | Japan and South Korea, July 2026 |
| 10 Jul 2026 | 8426.8 µg/m³ | – |
| 21 May 2025 | 8326.5 µg/m³ | Japan, May 2025 |
| 18 Apr 2024 | 8024.8 µg/m³ | – |
| 21 Jul 2026 | 8024.8 µg/m³ | Japan and South Korea, July 2026 |
| 19 May 2026 | 7823.8 µg/m³ | – |
| 29 Mar 2026 | 7723.0 µg/m³ | – |
| 19 Apr 2024 | 7722.9 µg/m³ | – |
| 30 Mar 2026 | 7622.3 µg/m³ | – |
| 10 Jul 2025 | 7522.1 µg/m³ | – |
Daily means, the highest since 28 Jul 2023; 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, Takayama, Japan, 28 Jul 2023 – 12 Oct 2026. Monitor data from Ministry of the Environment Air Pollutant Wide Area Monitoring System via OpenAQ; sources listed at smogrank.com/sources. smogrank.com/jp/takayama/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.
Takayama now: the last 24 hours, its ranks today and the last 12 months day by day.
Updated 2026-10-12 20:07 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).