SmogRank / World / Japan / Chiba / June 2025

Most polluted cities in Chiba, Japan, June 2025

31 cities in Chiba, Japan ranked by their average PM2.5 over the 30 days. Worst: Kamagaya at 9.9 µg/m³, #1,281 of 2,453 cities in the world. Cleanest: Tōgane at 6.8. 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.

← Kamagaya 0% 0.75%0
Every city in Chiba, Japan ranked for June 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.
  1. 1Kamagaya
    0%
  2. 2Sakura
    0%
  3. 3Urayasu
    0%
  4. 4Sukayama
    0%
  5. 5Inzai
    0%
  6. 5Yachiyo
    0%
  7. 7Tateyama
    0%
  8. 7Noda
    0%
  9. 7Narita
    0%
  10. 7Chiba
    0%
  11. 11Kashiwa
    0%
  12. 11Narashino
    0%
  13. 13Kimitsu
    0%
  14. 14Matsudo
    0%
  15. 14Baraki
    0%
  16. 14Motona
    0%
  17. 17Kōzaki
    0%
  18. 18Kisarazu
    0%
  19. 19Ajiki
    0%
  20. 20Yachimata
    0%
  21. 21Yokoshiba
    0%
  22. 22Omigawa
    0%
  23. 23Yotsukaidō
    0%
  24. 23Ichihara
    0%
  25. 25Nagadomi
    0%
  26. 26Mobara
    0%
  27. 26Katsuura
    0%
  28. 28Ichinomiya
    0%
  29. 28Sōsa
    0%
  30. 30Sodegaura
    0%
  31. 31Tōgane
    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

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SmogRank, most polluted cities in Chiba, Japan, PM2.5, June 2025, smogrank.com/jp/region/chiba/history/2025-06 (accessed 7 Oct 2026).

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