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| 作者 | Sarah E. Rothenberg; Runsheng Yin; James P. Hurley; David P. Krabbenhoft; Yuyun Ismawati; Chuan Hong; Alexis Donohue
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| 刊名 | Environmental Science & Technology
 ; Environmental Science & Technology
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| 出版日期 | 2017
; 2017
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| 卷号 | 51期号:11页码:6480-6488 |
| 英文摘要 |
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Mercury (Hg) isotopic signatures were characterized in polished rice samples from China, U.S., and Indonesia (n = 45). Hg isotopes were also analyzed in paired hair samples for participants from China (n = 21). For the latter, we also quantified the proportion of methylmercury intake through rice (range: 31-100%), and the weekly servings of fish meals (range: 0-5.6 servings/weekly). For these participants, 29% (n = 6) never ingested fish, 52% (n = 11) ingested fish < twice/weekly, and 19% (n = 4) ingested fish >= twice/weekly. In rice and hair, both mass-dependent fractionation (MDF, reported as delta Hg-202) and mass-independent fractionation (MIF, reported as Delta Hg-199) of Hg isotopes were observed. Compared to rice, hair delta Hg-202 values were enriched on average (+/- 1 standard deviation) by 1.9 +/- 0.61 parts per thousand, although the range was wide (range: 0.45 parts per thousand, 3.0 parts per thousand). Hair Delta Hg-199 was significantly inversely associated with %methylmercury intake from rice (Spearmans rho = -0.61, p < 0.01, n = 21), i.e., as the proportion of methylmercury intake from rice increased, MIF decreased. Additionally, hair Delta Hg-199 was significantly higher for participants ingesting fish >= twice/weekly compared to those who did not ingest fish or ingested fish < twice/weekly (ANOVA, p < 0.05, n = 21); Overall, results suggest that Hg isotopes (especially MIF) in human hair can be used to distinguish methylmercury intake from rice versus fish.
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Mercury (Hg) isotopic signatures were characterized in polished rice samples from China, U.S., and Indonesia (n = 45). Hg isotopes were also analyzed in paired hair samples for participants from China (n = 21). For the latter, we also quantified the proportion of methylmercury intake through rice (range: 31-100%), and the weekly servings of fish meals (range: 0-5.6 servings/weekly). For these participants, 29% (n = 6) never ingested fish, 52% (n = 11) ingested fish < twice/weekly, and 19% (n = 4) ingested fish >= twice/weekly. In rice and hair, both mass-dependent fractionation (MDF, reported as delta Hg-202) and mass-independent fractionation (MIF, reported as Delta Hg-199) of Hg isotopes were observed. Compared to rice, hair delta Hg-202 values were enriched on average (+/- 1 standard deviation) by 1.9 +/- 0.61 parts per thousand, although the range was wide (range: 0.45 parts per thousand, 3.0 parts per thousand). Hair Delta Hg-199 was significantly inversely associated with %methylmercury intake from rice (Spearmans rho = -0.61, p < 0.01, n = 21), i.e., as the proportion of methylmercury intake from rice increased, MIF decreased. Additionally, hair Delta Hg-199 was significantly higher for participants ingesting fish >= twice/weekly compared to those who did not ingest fish or ingested fish < twice/weekly (ANOVA, p < 0.05, n = 21); Overall, results suggest that Hg isotopes (especially MIF) in human hair can be used to distinguish methylmercury intake from rice versus fish.
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| 语种 | 英语
; 英语
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| 源URL | [http://ir.gyig.ac.cn/handle/42920512-1/8091]  |
| 专题 | 地球化学研究所_矿床地球化学国家重点实验室
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| 作者单位 | 1.Department of Environmental Health Sciences, University of South Carolina, Columbia, South Carolina 29208, United States
2.State Key Laboratory of Environmental Geochemistry, Institute of Geochemistry, Chinese Academy of Sciences, Guiyang 550002, China
3.Environmental Chemistry and Technology Program, University of Wisconsin−Madison, Madison, Wisconsin 53706, United States
4.Department of Civil and Environmental Engineering, University of Wisconsin−Madison, Madison, Wisconsin 53706, United States
5.U.S. Geological Survey, 8505 Research Way, Middleton, Wisconsin 53562, United States
6.BaliFokus Foundation, Mandalawangi No. 5, Jalan Tukad Tegalwangi, Denpasar 80223, Bali, Indonesia
7.Medical Research-International Health Center for International Health, Medical Center of the University of Munich, Munich, Germany
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推荐引用方式
GB/T 7714 |
Sarah E. Rothenberg,Runsheng Yin,James P. Hurley,et al. Stable Mercury Isotopes in Polished Rice (Oryza sativa L.) and Hair from Rice Consumers, Stable Mercury Isotopes in Polished Rice (Oryza sativa L.) and Hair from Rice Consumers[J]. Environmental Science & Technology, Environmental Science & Technology,2017, 2017,51, 51(11):6480-6488, 6480-6488.
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| APA |
Sarah E. Rothenberg.,Runsheng Yin.,James P. Hurley.,David P. Krabbenhoft.,Yuyun Ismawati.,...&Alexis Donohue.(2017).Stable Mercury Isotopes in Polished Rice (Oryza sativa L.) and Hair from Rice Consumers.Environmental Science & Technology,51(11),6480-6488.
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| MLA |
Sarah E. Rothenberg,et al."Stable Mercury Isotopes in Polished Rice (Oryza sativa L.) and Hair from Rice Consumers".Environmental Science & Technology 51.11(2017):6480-6488.
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