SmogRank / World / Japan / Hyōgo / January 2026

Most polluted cities in Hyōgo, Japan, January 2026

17 cities in Hyōgo, Japan ranked by their average PM2.5 over the 31 days. Worst: Higashinozoe at 10.2 µg/m³, #1,078 of 2,593 cities in the world. Cleanest: Toyooka at 6.5. 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 0% 0.75%0

Every city in Hyōgo, Japan ranked for January 2026, 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%
2Amagasaki
0%
3Akashi
0%
4Kakogawachō-honmachi
0%
5Sandachō
0%
6Kariya
0%
7Nishinomiya
0%
8Ono
0%
9Aioi
0%
10Kobe
0%
10Himeji
0%
12Takarazuka
0%
12Tatsuno
0%
14Nishiwaki
0%
15Sumoto
0%
15Ikaruga
0%
17Toyooka
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, January 2026 · All cities in Japan, January 2026 · Hyōgo now

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SmogRank, most polluted cities in Hyōgo, Japan, PM2.5, January 2026, smogrank.com/jp/region/hyogo/history/2026-01 (accessed 6 Oct 2026).

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