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Heavy metal and metalloid concentrations in components of 25 wheat (Triticum aestivum) varieties in the vicinity of lead smelters in Henan province, China

机译：河南省铅冶炼厂附近25个小麦品种的重金属和准金属含量

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摘要

Soil contamination and human impacts have been reported in the vicinity of lead (Pb) smelters in Henan, China. However, no information is available on crop uptake of soil contaminants near these smelters. Grains, glume, rachis, and stem/leaf samples of 25 wheat (Triticum aestivum) varieties were collected from a small, smelter-impacted agricultural area of Beishe Village, Henan Province, and were analyzed for arsenic (As), cadmium (Cd), copper (Cu), Pb, and zinc (Zn) concentrations. The study aim was to evaluate the level of contaminant uptake in wheat and ostensibly observe if specific varieties of wheat were more susceptible to uptake. The mean concentrations of As, Cd, Cu, Pb, and Zn in whole grain flour were 0.0915, 0.192, 3.22, 0.280, and 32.5 mg kg(-1), respectively. Grain concentrations of all 25 varieties for Cd as well as 16 varieties for Pb exceeded the maximum permissible concentrations (MPC) for consumption. Mean pollution indexes (MPI) (element concentration of wheat grain/MPC for As, Cd or Pb) of the grains varied 0.562-2.15. As, Pb, and Cd contributed 5.22, 40.0, and 54.8 % to the MPI for all 25 varieties, respectively. This survey highlights Cd and Pb contamination of wheat grains in the vicinity of lead smelters in Henan Province, and likely other farm villages in the area. Further work is needed to examine uptake and contamination of other crops and vegetables impacted from the lead smelters in Henan Province and the absorption of toxic elements from food sources by local inhabitants.
机译：据报道，中国河南的铅冶炼厂附近发生了土壤污染和人类影响。但是，没有关于这些冶炼厂附近作物吸收土壤污染物的信息。从河南省北社村一个受冶炼厂影响的小型农业区收集了25个小麦品种的籽粒，颖花，轮轴和茎/叶样品，并对其中的砷，镉和镉进行了分析。 ，铜（Cu），Pb和锌（Zn）的浓度。研究目的是评估小麦中污染物的吸收水平，表面上观察特定品种的小麦是否更容易吸收。全谷物面粉中As，Cd，Cu，Pb和Zn的平均浓度分别为0.0915、0.192、3.22、0.280和32.5 mg kg（-1）。所有25个Cd品种和16个Pb品种的谷物浓度都超过了消费的最大允许浓度（MPC）。谷物的平均污染指数（MPI）（小麦籽粒/砷，镉或铅的MPC的元素浓度）变化为0.562-2.15。 As，Pb和Cd分别对所有25个品种的MPI贡献了5.22％，40.0％和54.8％。这项调查突出了河南省铅冶炼厂附近以及该地区其他农场村庄附近小麦籽粒中Cd和Pb的污染。需要做进一步的工作来检查河南省铅冶炼厂对其他农作物和蔬菜的吸收和污染，以及当地居民从食物来源中吸收有毒元素的情况。

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  • 来源
    《Environmental Monitoring and Assessment》 |2016年第1期|23.1-23.10|共10页
  • 作者

    Xing Weiqin; Zhang Hongyi; Scheckel Kirk G.; Li Liping;

  • 作者单位

    Henan Univ Technol, Sch Chem & Chem Engn, Zhengzhou 450001, Henan, Peoples R China;

    Henan Univ Technol, Sch Chem & Chem Engn, Zhengzhou 450001, Henan, Peoples R China;

    US EPA, Natl Risk Management Res Lab, Cincinnati, OH 45224 USA;

    Henan Univ Technol, Sch Chem & Chem Engn, Zhengzhou 450001, Henan, Peoples R China;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);美国《化学文摘》(CA);
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    Wheat grain; Cd; Pb; Henan; Lead smelting; Variety;

    机译：小麦籽粒;镉;铅;河南;铅冶炼;品种;

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