Carbon and nitrogen stable isotope ratios and mercury concentration in the scalp hair of residents from Taiji, a whaling town
Carbon and nitrogen stable isotope ratios and mercury concentration in the scalp hair of residents from Taiji, a whaling town
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DOI：
10.1016/j.marpolbul.2013.01.018
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发表时间：
2013-04-15
影响因子：
5.8
通讯作者：
Haraguchi, Koichi
中科院分区：
文献类型：
--
作者：
Endo, Tetsuya;Hayasaka, Moriaki;Haraguchi, Koichi
我们分析了食用鲸鱼肉和不食用鲸鱼肉的日本人头发中碳(C-13)和氮(N-15)的稳定同位素比值以及汞(Hg)浓度，并研究了C-13和N-15的稳定同位素比值与汞浓度的关系。鲸鱼食肉者的平均增量N-15和增量C-13分别为10.11‰和-18.5‰，显著高于非食肉者的平均值(9.28‰和-18.9‰)。鲸鱼肉食者的平均汞浓度(20.6微克/克)显著高于非食肉者(2.20微克/克)。食鲸者毛发中的增量C-13与增量N-15及增量N-15与汞浓度呈显著正相关，而非食性鲸鱼的增量N-15与汞浓度之间的相关性不显著。食用鲸鱼肉可能会增加头发中的汞浓度以及增量N-15和增量C-13的值。(C)2013爱思唯尔有限公司。保留所有权利。
We analyzed stable isotope ratios of carbon (delta C-13) and nitrogen (delta N-15) as well as mercury (Hg) concentration in the scalp hair of Japanese who consumed whale meat and those who did not, and investigated the relationships among the delta C-13 and delta N-15 values and Hg concentration. The average delta N-15 and delta C-13 values of whale meat-eaters (10.11 parts per thousand and -18.5 parts per thousand) were significantly higher than those of non-eaters (9.28 parts per thousand and -18.9 parts per thousand), respectively. The average Hg concentration of whale meat-eaters (20.6 mu g/g) was significantly higher than that of non-eaters (2.20 mu g/g). Significant positive correlations were found between the delta C-13 and delta N-15 values and between the delta N-15 value and Hg concentration in the hair of whale meat-eaters, while the correlation between the delta N-15 value and Hg concentration was not statistically significant in the non-eaters. The consumption of whale meat may increase Hg concentration as well as delta N-15 and delta C-13 values in scalp hair. (C) 2013 Elsevier Ltd. All rights reserved.