SmogRank / Japan / Iwate / Takizawa
Takizawa, month by month
Takizawa has a measured daily mean on 1,135 days since 28 July 2023. Its worst month was March 2026, at 52 US AQI (9.4 µg/m³), 1,799th of 2,971 cities on that month's world ranking. Its cleanest was December 2024, at 17 US AQI (3.1 µg/m³). 2025 averaged 36 US AQI (6.4 µg/m³), against 33 US AQI (6.0 µg/m³) in 2024.
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
1 month
| Month | Why |
|---|---|
| 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.
Takizawa's worst months
| Month | US AQI | World rank | Episode |
|---|---|---|---|
| March 2026 | 529.4 µg/m³ | 1,799thof 2,971 | – |
| April 2024 | 519.1 µg/m³ | 1,150thof 2,520 | Japan and South Korea, April 2024 |
| July 2025 | 509.0 µg/m³ | 1,519thof 2,889 | – |
| July 2024 | 488.7 µg/m³ | 1,103rdof 2,566 | Japan, 12 to 14 July 2024 |
| March 2025 | 458.1 µg/m³ | 1,915thof 2,862 | – |
| June 2024 | 437.8 µg/m³ | 1,392ndof 2,563 | – |
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.
Takizawa's worst days
| Day | US AQI | Episode |
|---|---|---|
| 13 Jul 2024 | 8929.6 µg/m³ | Japan, 12 to 14 July 2024 |
| 18 Apr 2024 | 8627.9 µg/m³ | Japan and South Korea, April 2024 |
| 14 Jul 2024 | 8427.0 µg/m³ | Japan, 12 to 14 July 2024 |
| 29 Mar 2026 | 8024.5 µg/m³ | – |
| 16 Jul 2024 | 7320.8 µg/m³ | – |
| 30 Mar 2026 | 7220.6 µg/m³ | – |
| 24 Mar 2026 | 7220.3 µg/m³ | – |
| 15 Jul 2024 | 6918.5 µg/m³ | – |
| 26 Apr 2025 | 6818.2 µg/m³ | – |
| 2 Mar 2025 | 6717.7 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, Takizawa, 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/takizawa/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.
Takizawa now: the last 24 hours, its ranks today and the last 12 months day by day.
Updated 2026-10-13 01:07 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).