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

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• 作者：Weiqin Xing ; Hongyi Zhang ; Kirk G. Scheckel…
• 关键词：Wheat grain ; Cd ; Pb ; Henan ; Lead smelting ; Variety
• 刊名：Environmental Monitoring and Assessment
• 出版年：2016
• 出版时间：January 2016
• 年：2016
• 卷：188
• 期：1
• 全文大小：1,035 KB
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• 作者单位：Weiqin Xing (1)
  Hongyi Zhang (1)
  Kirk G. Scheckel (2)
  Liping Li (1)
  
  1. School of Chemistry and Chemical Engineering, Henan University of Technology, Zhengzhou, Henan, 450001, China
  2. National Risk Management Research Laboratory, U. S. Environmental Protection Agency, Cincinnati, OH, 45224, USA
  
• 刊物类别：Earth and Environmental Science
• 刊物主题：Environment
  Monitoring, Environmental Analysis and Environmental Ecotoxicology
  Ecology
  Atmospheric Protection, Air Quality Control and Air Pollution
  Environmental Management
  
• 出版者：Springer Netherlands
• ISSN：1573-2959

文摘

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鈭?, 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鈥?.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. Keywords Wheat grain Cd Pb Henan Lead smelting Variety