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Anthropogenic radionuclides in Antarctic biota - dosimetrical considerations.
Journal of Environmental Radioactivity ( IF 2.3 ) Pub Date : 2019-12-23 , DOI: 10.1016/j.jenvrad.2019.106140
K M Szufa 1 , J W Mietelski 2 , M A Olech 3 , A Kowalska 4 , K Brudecki 2
Affiliation  

The article presents results of the research on artificial radionuclides (137Cs, 90Sr, 241Am) in the Antarctic environment. Samples of 12 species from the marine environment: Pygoscelis adeliae, Pygoscelis papua, Macronectes giganteus, Pagodroma nivea, Catharacta antarctica, Leptonychotes weddellii, Mirounga leonina, Harpagifer antarcticus, Chaenocephalus aceratus, Nacella concinna, Himantothallus grandifolius, Iridaea cordata (bones, feathers, soft tissues, eggs' shells of birds, bones, skin, fur of mammals, fish, mollusks' soft tissues and shells, algae) and samples of 4 species from the terrestrial environment: Sanionia uncinata, Usnea antarctica, Usnea aurantiaco-atra, Deschampsia antarctica (mosses, lichens, grass) were investigated. Differences in the accumulation of 137Cs between marine and terrestrial ecosystem were shown, which are mostly due to conservatism of mosses and lichens and active removal of cesium by animal body. Furthermore discrepancy between mosses and lichens in the radioceasium accumulation was statistically proven with the additional use of Neutron Activation Analysis. Moreover, the internal weighted dose rates assessment was prepared using the ERICA Tool. The dose rates were relatively low, not exceeding several dozen nGy/h. Nonetheless, one species - Pagodroma nivea, was significantly outstanding due to the highest weighted dose rate it is burdened with.

中文翻译:

南极生物区系中的人为放射性核素-剂量学考虑。

本文介绍了南极环境中人工放射性核素(137Cs,90Sr,241Am)的研究结果。海洋环境中的12种物种的样本:Pygoscelis adeliae,Pygoscelis papua,Macronectes giganteus,Pagodroma nivea,Cathaacta antarctica,Leptonychotes weddellii,Mirounga leonina,Harpagifer antarcticus,Chaenocephalus aceratus,Hindapanetes,Hifantbones,Hifantanates,Nifanta conta组织,鸟类的蛋壳,骨骼,皮肤,哺乳动物的皮毛,鱼类,软体动物的软组织和贝壳,藻类)以及来自陆地环境的4种物种的样本:桑尼翁(Siononia uncinata),南极洲(Usnea),南极洲USnea aurantiaco-atra,南极Deschampsia (苔藓,地衣,草)进行了调查。显示了海洋和陆地生态系统之间137Cs积累的差异,这主要是由于苔藓和地衣的保守性以及动物体内铯的主动清除。此外,通过额外使用中子活化分析,可以证明放射性铯积聚中的苔藓和地衣之间存在差异。此外,内部加权剂量率评估是使用ERICA工具进行的。剂量率相对较低,不超过几十nGy / h。但是,由于负担最大的加权剂量率,一种物种-Pagodroma nivea非常出色。内部加权剂量率评估是使用ERICA工具进行的。剂量率相对较低,不超过几十nGy / h。然而,由于负担最大的加权剂量率,一种物种-Pagodroma nivea非常出色。内部加权剂量率评估是使用ERICA工具进行的。剂量率相对较低,不超过几十nGy / h。然而,由于负担最大的加权剂量率,一种物种-Pagodroma nivea非常出色。
更新日期:2019-12-23
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