当前位置: X-MOL 学术J. Environ. Radioact. › 论文详情
Our official English website, www.x-mol.net, welcomes your feedback! (Note: you will need to create a separate account there.)
Radiocesium (137Cs) concentrations in the two-toed amphiuma (Amphiuma means) and the lesser siren (Siren intermedia).
Journal of Environmental Radioactivity ( IF 2.3 ) Pub Date : 2019-11-18 , DOI: 10.1016/j.jenvrad.2019.106107
David L Haskins 1 , Albert L Bryan 2
Affiliation  

This study sought to determine radiocesium (137Cs) concentrations in two species of aquatic salamanders - the two-toed amphiuma (Amphiuma means) and the lesser siren (Siren intermedia) on the Savannah River Site. Concentrations (137Cs Bq/g, dry wt) of the two species were similar at both 137Cs-contaminated (A. means = 0.733 ± 0.242, n = 5; S. intermedia = 0.839 ± 0.722, n = 5) and reference sites (A. means = 0.028 ± 0.020, n = 5; S. intermedia = 0.042 ± 0.027, n = 11). Salamanders captured in areas impacted by 137Cs contamination exhibited significantly higher 137Cs concentrations than individuals captured at reference sites (U = 146, p < 0.001). Salamander size (snout-vent length) was not correlated with whole-body 137Cs. An analysis of our data using the ERICA tool suggests that negative impacts due to 137Cs exposure are unlikely in these species. Overall, these data indicate that A. means and S. intermedia inhabiting contaminated sites bioaccumulate but do not biomagnify 137Cs.

中文翻译:

两趾两栖动物(两栖动物)和小警报器(中间警报器)中的放射性铯(137Cs)浓度。

这项研究试图确定两种水生sal中的放射性铯(137Cs)浓度-萨凡纳河站点上的两趾两栖phi(Amphiuma指)和小警报器(Siren intermedia)。在受137Cs污染的两个物种(A.平均值= 0.733±0.242,n = 5; S. intermedia = 0.839±0.722,n = 5)和参照位点上,这两个物种的浓度(137Cs Bq / g,干重)相似。 A.平均值= 0.028±0.020,n = 5; S. intermedia = 0.042±0.027,n = 11)。在受137Cs污染影响的地区捕获的显示的137Cs浓度明显高于在参考地点捕获的individuals(U = 146,p <0.001)。大小(口鼻长度)与全身137Cs不相关。使用ERICA工具对我们的数据进行的分析表明,在这些物种中不太可能由于137Cs暴露而产生负面影响。总的来说,这些数据表明,A。手段和S.intermedian居住受污染的站点生物积累,但没有生物放大137 Cs。
更新日期:2019-11-01
down
wechat
bug