SmogRank / World / Asia / Japan / Hyōgo

Most polluted cities in Hyōgo, Japan

17 measured cities, this year; 17 above the WHO annual guideline. Worst: Kakogawachō-honmachi at 10.4 µg/m³, #902 in the world.

About 271 people in these 8 cities breathed unhealthy air on an average day so far this year.

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.

Hyōgo: 17 measured citiesKagawa: 8 measured citiesKyoto: 14 measured citiesNara: 6 measured citiesOkayama: 12 measured citiesOsaka: 16 measured citiesTokushima: 9 measured citiesTottori: 4 measured citiesWakayama: 8 measured citiesFukui: 7 measured cities#17 Takarazuka: 8.7 µg/m³#16 Kobe: 8.8 µg/m³#15 Toyooka: 8.9 µg/m³#12 Ikaruga: 9.0 µg/m³#13 Himeji: 9.0 µg/m³#14 Tatsuno: 9.0 µg/m³#11 Sandachō: 9.2 µg/m³#10 Nishinomiya: 9.3 µg/m³#9 Aioi: 9.4 µg/m³#7 Akashi: 9.5 µg/m³#8 Kariya: 9.5 µg/m³#5 Sumoto: 9.6 µg/m³#6 Ono: 9.6 µg/m³#4 Nishiwaki: 9.7 µg/m³#3 Amagasaki: 10.1 µg/m³#2 Higashinozoe: 10.3 µg/m³#1 Kakogawachō-honmachi: 10.4 µg/m³
Each dot is a measured city, coloured by its PM2.5; tap a dot to open the city.
← Tatsuno 271 2000
Every measured city in Hyōgo, Japan 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. 1Tatsuno 271
  2. 2Kakogawachō-honmachi 0
  3. 3Higashinozoe 0
  4. 4Akashi 0
  5. 5Sandachō 0
  6. 6Himeji 0
  7. 7Kobe 0
  8. 8Takarazuka 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

Estimated: cities without a monitor

Hyōgo cities we can't measure, with model estimates for the last 7 days. Listed by population, not ranked: estimates aren't precise enough to rank. Model estimates from the Copernicus Atmosphere Monitoring Service (CAMS), adjusted to measured cities nearby where there are any. Adjusted, a single day lands within ×1.5 of what a monitor would read about two times in three; unadjusted, it can be off by half or double. Treat them as a guide, not a measurement.

City7-day estimateBand
Itami≈ 8 µg/m³Good
Kawanishi≈ 7 µg/m³Good
Ashiya≈ 5 µg/m³Good
Takasago≈ 6 µg/m³Good
Miki≈ 6 µg/m³Good
Tanba≈ 6 µg/m³Good
Tamba≈ 6 µg/m³Good
Minamiawaji≈ 6 µg/m³Good
Kasai≈ 5 µg/m³Good
Awaji≈ 6 µg/m³Good
Katō≈ 7 µg/m³Good
Sasayama≈ 5 µg/m³Good
Tatsunochō-tominaga≈ 6 µg/m³Good
Tamba-Sasayama≈ 5 µg/m³Good
Shisō≈ 6 µg/m³Good
Inami≈ 6 µg/m³Good
Kimokawa≈ 4 µg/m³Good
Wadayama≈ 5 µg/m³Good
Yamazakichō-nakabirose≈ 6 µg/m³Good
Shirahamachō-usazakiminami≈ 6 µg/m³Good
Yabu≈ 5 µg/m³Good
Yashiro≈ 6 µg/m³Good
Nishitawara≈ 6 µg/m³Good
Kajiya≈ 5 µg/m³Good
Fukura≈ 7 µg/m³Good
Kasumi≈ 5 µg/m³Good
Sayō≈ 5 µg/m³Good
Kamigōri≈ 6 µg/m³Good

Bad-air episodes in Hyōgo

Times when many cities around here had PM2.5 at twice their usual or more on the same days.

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SmogRank, most polluted cities in Hyōgo, Japan, PM2.5, this year to 6 Oct 2026, 22:00 UTC, smogrank.com/jp/region/hyogo?w=year.

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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.

Updated 2026-10-06 22:07 UTC. Values are PM2.5 (fine particles), the median of each city's monitors, as the US AQI PM2.5 sub-index.