Interception of the Fukushima reactor accident‐derived 137 Cs, 134 Cs and 131 I by coniferous forest canopies
نویسندگان
چکیده
منابع مشابه
Global and local cancer risks after the Fukushima Nuclear Power Plant accident as seen from Chernobyl: a modeling study for radiocaesium ((134)Cs &(137)Cs).
The accident at the Fukushima Daiichi Nuclear Power Plant (NPP) in Japan resulted in the release of a large number of fission products that were transported worldwide. We study the effects of two of the most dangerous radionuclides emitted, (137)Cs (half-life: 30.2years) and (134)Cs (half-life: 2.06years), which were transported across the world constituting the global fallout (together with io...
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Forests in Fukushima and neighboring prefectures accumulated atmospheric fallout of radioactive materials after the Fukushima Daiichi Nuclear Power Plant accident. We investigated the initial behavior of Cs deposited in coniferous forest plantations. Furthermore, we conducted in-situ measurements of radioactivity in coniferous and broadleaf forest canopies. The results of this study demonstrate...
متن کاملInternal conversion coefficients in 134 Cs , 137 Ba , and 139 La : A precise test of theory
Recently we measured the ratio ofK-shell internal conversion coefficients, αK , for the 127.5-keV E3 transition in 134Cs and the 661.7-keV M4 transition in 137Ba. We here report a measurement of the 165.9-keV M1 transition in 139La, based on which we convert our earlier ratio measurement into individual αK values for the transitions in 134Cs and 137Ba. These results continue to confirm the Dira...
متن کاملTest of internal - conversion theory with measurements in 134 Cs and 137 Ba
We have measured the ratio of K-shell internal conversion coefficients, αK , for the 127.5-keV E3 transition in 134Cs and the 661.7-keV M4 transition in 137Ba. Previous measurements of these αK values led to a ratio that differed from calculated internal conversion coefficients. Our measured result, 30.01(15), disagrees with, but is a factor of three more precise than, the previous average of a...
متن کاملRadioactive pollution in Athens, Greece due to the Fukushima nuclear accident.
As a result of the nuclear accident in Fukushima Dai-ichi power plant, which started on March 11, 2011, radioactive pollutants were transferred by air masses to various regions of the Northern hemisphere, including Europe. Very low concentrations of (131)I, (137)Cs and (134)Cs in airborne particulate matter were measured in Athens, Greece during the period of March 24 to April 28, 2011. The max...
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ژورنال
عنوان ژورنال: Geophysical Research Letters
سال: 2012
ISSN: 0094-8276,1944-8007
DOI: 10.1029/2012gl052928