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Comparison of Bioavailability and Biological Transfer Factor of Arsenic in Agricultural Soils with Different Crops

  • Oh, Se Jin (Department of Biological Environment, Kangwon National University) ;
  • Kim, Sung Chul (Department of Bioenvironmental Chemistry, Chungnam National University) ;
  • Ok, Yong Sik (Department of Biological Environment, Kangwon National University) ;
  • Oh, Seung Min (Department of Biological Environment, Kangwon National University) ;
  • Ji, Won Hyun (Technology Research Center, Korea Mine Reclamation Corporation) ;
  • Yang, Jae E. (Department of Biological Environment, Kangwon National University)
  • Received : 2014.11.20
  • Accepted : 2014.12.16
  • Published : 2014.12.31

Abstract

Heavy metal pollution in agricultural field near at the abandoned metal mines has been a critical issue in Korea. In particular, bioaccumulation in plants can have detrimental effect on human health. Main objective of this research was to examine arsenic (As) concentration in soil with varied extraction methods and to determine bioaccumulation and biological transfer factor in different crops. Results showed that bioaccumulation ratio of As for total contents in soil was ordered leafy and stem vegetables (1.19%) > fruit bearing vegetables (0.79%) > pulses (0.40%) > root vegetables (0.36%) with different crop species. Among 6 different extraction methods, all of extraction methods showed high correlation ($R^2=0.87-0.97$) except DTPA ($R^2=0.25$) when comparing As concentration in soil extracted with different extractants and As concentration in each crops. Calculated biological transfer factor was ranged 0.002-0.018 depending on crop species. Overall, concentration of As in crops can be varied and best management practice for minimizing bioaccumulation of As should be considered depending on crop species.

Keywords

References

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