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Report No.

Vertical and horizontal distributions of $$^{137}$$Cs on paved surfaces affected by the Fukushima Dai-ichi Nuclear Power Plant accident

Yoshimura, Kazuya  ; Watanabe, Takayoshi ; Kurikami, Hiroshi  

To obtain the important information and parameter for the measurement of $$^{137}$$Cs activity per unit area on paved ground, this study evaluated their vertical and horizontal distributions. This study showed that $$^{137}$$Cs was retained in extremely surface layer with mass depth less than 0.5 cm$$^{-2}$$. This study also demonstrated the horizontal variations of $$^{137}$$Cs activity and the relation of the variation with grid size.



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Category:Environmental Sciences



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