134Cs and 137Cs concentrations in surface air at Chiba City, Japan during 2016 to 2023: 137Cs/239+240Pu activity ratio as a proxy of late effects of Fukushima Dai-ichi Nuclear Power Station accident
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To elucidate current levels of 134Cs and 137Cs in surface air at Chiba City, we carried out measurements of their radionuclides during the period from March 2016 to December 2023. The 137Cs activity concentrations in surface air exhibited gradual decrease with... ...
