SmogRank / World / Japan / Chiba / June 2026

Most polluted cities in Chiba, Japan, June 2026

31 cities in Chiba, Japan ranked by their average PM2.5 over the 30 days. Worst: Sukayama at 7.7 µg/m³, #1,168 of 2,466 cities in the world. Cleanest: Tōgane at 4.5. 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.

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

All cities in the world, June 2026 · All cities in Japan, June 2026 · Chiba now

Use this board

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