Arsenic accumulation, distribution and source analysis of rice in a typical growing area in north China.
Arsenic accumulation, distribution and source analysis of rice in a typical growing area in north China.
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北方典型稻区水稻砷积累、分布及来源分析
DOI：
10.1016/j.ecoenv.2018.10.015
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发表时间：
2019-01
影响因子：
6.8
通讯作者：
Luan Lingyu
中科院分区：
文献类型：
--
作者：
Wang Lihong;Gao Sulian;Yin Xixiang;Yu Xiongjun;Luan Lingyu
稻米被认为是人类接触砷(As)的主要来源，特别是在亚洲。本文研究了中国北部重要水稻产区南四湖地区5个地点(SZ、QH、XZ、WS和JX)水稻体内As的积累、分布和来源分析。结果表明，水稻土和灌溉水中总砷的平均浓度分别为6.3~13.6 mg kg−1和5.5~9.9 μg L−1。精米中无机砷As(III)和二甲基砷酸DMAS(V)是主要形态，有少量As(V)存在。值得注意的是，As(III)的百分比增加了63.9-68.5%。根据调查数据，农田土壤因施肥而增加的总砷为31.5-11580 mg/hm2/hm2/a。根据Spearman等级相关分析和主成分分析的结果，土壤和灌溉水中的砷水平可能是影响水稻中砷含量的重要因素。
Rice (Oryza sativa) is believed to be a major source of arsenic (As) exposure in humans, especially in Asia. In this study, As accumulation, distribution and source analysis of rice are investigated in five sites (SZ, QH, XZ, WS and JX) in the Nansi Lake area, an important rice-growing region in north China. Findings show that total As average concentrations were 6.3–13.6 mg kg−1and 5.5–9.9 μg L−1in paddy soil and irrigation water, respectively. Inorganic arsenic As(III) and dimethylarsinic acid DMAs(V) were the major speciation in polished rice, with a small proportion of As(V) evident. Notably, the percentage of As(III) increased by 63.9–68.5%. Based on survey data, the addition of total As to farm soil due to fertilizer application was 31.5–11,580 mg per hectare per year. According to the results of Spearman's rank correlation analysis and Principal Component Analysis (PCA), As levels in soil and irrigation water may be important factors influencing As concentration in rice.
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影响因子：
2.2
作者：
Bhattacharya, P.;Samal, A. C.;Santra, S. C.
通讯作者：
Santra, S. C.
影响因子：
11.4
作者：
Williams, Paul N.;Villada, Antia;Meharg, Andrew A.
通讯作者：
Meharg, Andrew A.
影响因子：
11.4
作者：
Sun, Guo-Xin;Williams, Paul N.;Meharg, Andrew A.
通讯作者：
Meharg, Andrew A.
DOI：
10.3923/jbs.2004.542.546
发表时间：
2004-04
期刊：
Journal of Biological Sciences
影响因子：
--
作者：
M.R. Islam;S. Islam;M. Jahiruddin;M.A. Islam
通讯作者：
M.R. Islam;S. Islam;M. Jahiruddin;M.A. Islam
影响因子：
7.4
作者：
Xi Yin;Jian Chen;J. Qin;Guoxin Sun;B. Rosen;Yong-guan Zhu
通讯作者：
Xi Yin;Jian Chen;J. Qin;Guoxin Sun;B. Rosen;Yong-guan Zhu