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Concentrations, Distributions, and Risk Assessment of HBCD in Sediment in the Weihe River Basin in Northwest China

Author

Listed:
  • Xueli Wang

    (Key Laboratory of Subsurface Hydrology and Ecological Effects in Arid Region, Ministry of Education, Chang’an University, Xi’an 710054, China)

  • Xiaoyu Yuan

    (Key Laboratory of Subsurface Hydrology and Ecological Effects in Arid Region, Ministry of Education, Chang’an University, Xi’an 710054, China)

  • Shengke Yang

    (Key Laboratory of Subsurface Hydrology and Ecological Effects in Arid Region, Ministry of Education, Chang’an University, Xi’an 710054, China)

  • Yaqian Zhao

    (Dooge Centre for Water Resource Research, School of Civil Engineering, University College Dublin, Belfield, 999014 Dublin 4, Ireland)

Abstract

As one of the most widely used brominated flame retardants, hexabromocyclododecane (HBCD) is found widely in the environmental media. In this study, the content and spatial distribution of HBCD and risk posed by HBCD in surface sediment in the Weihe River Basin in Northwest China were investigated. The HBCD concentration ranged nd–4.04 ng/g dw with the mean was 0.45 ng/g dw. The major source of HBCD in surface sediment was local point discharge. The distribution profiles of α-, β-, γ-HBCD were 24.7–87.9%, 0–42.0%, and 0–67.1%, respectively. Specially, α-HBCD was the dominating isomer in most sample sites. This differed significantly from that in HBCD technical product, which might be attributed to the different degradation rates and inter-transformation of the three HBCD isomers. Risk quotient method was used to assess the potential risk posed by HBCD in sediment. HBCD do not pose strong risks to aquatic algae organisms in the Weihe River Basin.

Suggested Citation

  • Xueli Wang & Xiaoyu Yuan & Shengke Yang & Yaqian Zhao, 2018. "Concentrations, Distributions, and Risk Assessment of HBCD in Sediment in the Weihe River Basin in Northwest China," IJERPH, MDPI, vol. 15(11), pages 1-11, October.
    • Handle: RePEc:gam:jijerp:v:15:y:2018:i:11:p:2340-:d:177721
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    References listed on IDEAS

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    1. Yuyun Chen & Rui Jia & Shengke Yang, 2015. "Distribution and Source of Polycyclic Aromatic Hydrocarbons (PAHs) in Water Dissolved Phase, Suspended Particulate Matter and Sediment from Weihe River in Northwest China," IJERPH, MDPI, vol. 12(11), pages 1-16, November.
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