SmogRank / World / Japan / Hyōgo / October 2025

Most polluted cities in Hyōgo, Japan, October 2025

17 cities in Hyōgo, Japan ranked by their average PM2.5 over the 31 days. Worst: Higashinozoe at 7.2 µg/m³, #1,056 of 2,564 cities in the world. Cleanest: Sumoto at 4.3. A city needs measurements on 70% of the days to be ranked.

Ranked by unhealthy days: the share of each city's measured days with a daily mean over 35.4 µg/m³ (US AQI 101+), Unhealthy for Sensitive Groups or worse on the US EPA's scale. Ties go to the higher average.

← Higashinozoe 0% 0.75%0

Every city in Hyōgo, Japan ranked for October 2025, one column each, ranked by unhealthy days: height is the share of its measured days that were unhealthy, colour its average. Point at it to read a city; tap to open it.

1Higashinozoe
0%
2Kakogawachō-honmachi
0%
3Ono
0%
3Amagasaki
0%
5Kariya
0%
5Tatsuno
0%
7Sandachō
0%
7Aioi
0%
9Akashi
0%
10Toyooka
0%
11Ikaruga
0%
12Kobe
0%
13Takarazuka
0%
13Nishinomiya
0%
13Himeji
0%
16Nishiwaki
0%
17Sumoto
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, October 2025 · All cities in Japan, October 2025 · Hyōgo now

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SmogRank, most polluted cities in Hyōgo, Japan, PM2.5, October 2025, smogrank.com/jp/region/hyogo/history/2025-10 (accessed 7 Oct 2026).

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