News: 10.50uSv/h on the train

10.50uSv/h was detected on the train from Narita airport (Chiba) to Tokyo,Yokohama.

This is one of the major train line called JR Sobu sen.

10.50uSv/h was detected while the person held the Geiger counter in the air.

He also detected 4.97uSv/h on the seat.

0.50uSv/h at a platform.

0.50uSv/h near air conditioner.

This person thinks the seat is the most contaminated.

Anyway,if you are on the train for 1 hour every day,

you’ll be exposed to 3.83mSv/h annually,which is four times higher than the safety limit of WHO.



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