The Forestry Agency believes cedar pollen next spring contaminated by cesium fallout from the Fukushima No. 1 nuclear plant will be well below the legal safety limit.
The exposure from inhaling cesium-contaminated cedar pollen circulating from Fukushima Prefecture will have a maximum radiation reading of 0.000132 microsievert per hour, the agency said, based on a recent calculation of fallout affecting cedar needles and leaves.
Yoshihisa Matsumoto, an associate professor at the Tokyo Institute of Technology and a radiation expert, said he is unaware of any research regarding the transfer of radioactive materials on cedar leaves to pollen.
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