SmogRank / World / Japan / Shizuoka / April 2025

Most polluted cities in Shizuoka, Japan, April 2025

19 cities in Shizuoka, Japan ranked by their average PM2.5 over the 30 days. Worst: Kosai at 12.0 µg/m³, #759 of 2,896 cities in the world. Cleanest: Izunokuni at 8.4. A city needs measurements on 70% of the days to be ranked.

About 0 people in these 7 cities breathed unhealthy air on an average day of April 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.

← Kosai 0 0.750
Every city in Shizuoka, Japan ranked for April 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. 1Kosai
    0
  2. 2Kanbara
    0
  3. 3Hamamatsu
    0
  4. 4Fuji
    0
  5. 5Numazu
    0
  6. 6Shizuoka
    0
  7. 7Fujieda
    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, April 2025 · All cities in Japan, April 2025 · Shizuoka now

Use this board

SmogRank, most polluted cities in Shizuoka, Japan, PM2.5, April 2025, smogrank.com/jp/region/shizuoka/history/2025-04 (accessed 6 Oct 2026).

Download top 10 (PNG)

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.