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.

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 2% 2%0

Every city in Hyōgo, Japan ranked for 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
2%
2Kariya
2%
3Kakogawachō-honmachi
2%
4Ono
1%
4Aioi
1%
6Sandachō
1%
7Tatsuno
1%
8Takarazuka
1%
9Nishiwaki
1%
10Akashi
1%
11Ikaruga
1%
12Amagasaki
1%
13Nishinomiya
1%
14Kobe
0%
15Toyooka
0%
16Himeji
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, 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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