SmogRank / World / Japan / Hyōgo / 2025

Most polluted cities in Hyōgo, Japan, 2025

17 cities in Hyōgo, Japan ranked by their average PM2.5 over the 365 days; 17 above the WHO annual guideline (5.0 µg/m³). Worst: Higashinozoe at 12.5 µg/m³, #569 of 2,624 cities in the world. Cleanest: Sumoto at 7.5. A city needs measurements on 70% of the days to be ranked.

About 18K people in these 8 cities breathed unhealthy air on an average day of 2025.

Ranked by people: each city's population times its share of unhealthy days, those with a daily mean over 35.4 µg/m³ (US AQI 101+). That is how many people living there breathed unhealthy air on an average day. Only cities measured at 2 or more places at least 3 km apart are ranked: one monitor shouldn't speak for a whole city. Population is the city itself, not its wider metro area.

← Kakogawachō-honmachi 5.21K 5K0
Every city in Hyōgo, Japan ranked for 2025 with monitors in two or more places, one column each, ranked by people breathing unhealthy air: height is people on an average day, colour its average. Point at it to read a city; tap to open it.
  1. 1Kakogawachō-honmachi
    5.21K
  2. 2Kobe
    4.21K
  3. 3Akashi
    2.5K
  4. 4Takarazuka
    2.48K
  5. 5Sandachō
    1.82K
  6. 6Tatsuno
    1.02K
  7. 7Higashinozoe
    737
  8. 8Himeji
    0
Good0–50
Moderate51–100
Sensitive groups101–150
Unhealthy151–200
Very unhealthy201–300
Hazardous301+

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

All cities in the world, 2025 · All cities in Japan, 2025 · Hyōgo now

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SmogRank, most polluted cities in Hyōgo, Japan, PM2.5, 2025, smogrank.com/jp/region/hyogo/history/2025 (accessed 6 Oct 2026).

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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.