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Current Environmental Radiation Levels

Current Environmental Radiation Levels

You can check the current ambient radiation levels around a specified location using the GPS function on your smartphone or by selecting any prefecture. Furthermore, by clicking on a measurement point, you can view the ambient radiation level at that specific location.

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Use location information

Please turn on your GPS function.

Specify location

Current Location: {{ selected_pref.prefname }}
Ambient Dose Rate Threshold(μGy/h)
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Mark Legend

Current Location

Indicates your current location obtained using GPS.

Monitoring Post

An outdoor radiation measurement point equipped with ambient radiation measurement instruments, such as a NaI(T1) scintillation detector, to measure and monitor outdoor ambient dose rate levels. Displayed color-coded based on ambient radiation dose rate values.

Select the area

  • 1. Hokkaido
  • 2. Aomori
  • 3. Iwate
  • 4. Miyagi
  • 5. Akita
  • 6. Yamagata
  • 7. Fukushima
  • 8. Ibaraki
  • 9. Tochigi
  • 10. Gunma
  • 11. Saitama
  • 12. Chiba
  • 13. Tokyo
  • 14. Kanagawa
  • 15. Niigata
  • 16. Toyama
  • 17. Ishikawa
  • 18. Fukui
  • 19. Yamanashi
  • 20. Nagano
  • 21. Gifu
  • 22. Shizuoka
  • 23. Aichi
  • 24. Mie
  • 25. Shiga
  • 26. Kyoto
  • 27. Osaka
  • 28. Hyogo
  • 29. Nara
  • 30. Wakayama
  • 31. Tottori
  • 32. Shimane
  • 33. Okayama
  • 34. Hiroshima
  • 35. Yamaguchi
  • 36. Tokushima
  • 37. Kagawa
  • 38. Ehime
  • 39. Kochi
  • 40. Fukuoka
  • 41. Saga
  • 42. Nagasaki
  • 43. Kumamoto
  • 44. Oita
  • 45. Miyazaki
  • 46. Kagoshima
  • 47. Okinawa
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