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Sorption Constant of Bisphenol A and Octylphenol Onto Size-Fractioned Dissolved Organic Matter Using a Fluorescence Method

Author

Listed:
  • Cheng-Wen Chuang

    (Department of Environmental Science and Engineering, National Pingtung University of Science and Technology, Pingtung 91201, Taiwan)

  • Wei-Shiang Huang

    (Department of Environmental Science and Engineering, National Pingtung University of Science and Technology, Pingtung 91201, Taiwan)

  • Hong-Sheng Chen

    (Department of Environmental Science and Engineering, National Pingtung University of Science and Technology, Pingtung 91201, Taiwan)

  • Liang-Fong Hsu

    (Department of Applied English, Tainan University of Technology, Tainan 71002, Taiwan)

  • Yung-Yu Liu

    (Department of Environmental Science and Engineering, National Pingtung University of Science and Technology, Pingtung 91201, Taiwan)

  • Ting-Chien Chen

    (Department of Environmental Science and Engineering, National Pingtung University of Science and Technology, Pingtung 91201, Taiwan)

Abstract

Dissolved organic matter (DOM) is a complex and heterogeneous mixture ubiquitously present in aquatic systems. DOM affects octylphenol (OP) and bisphenol A (BPA) distribution, transport, bioavailability, and toxicity. This study investigated OP and BPA sorption constants, log K COC , with three size-fractioned DOM. The molecular weights of the sized fractions were low molecular weight DOM (LDOM, <1 kDa), middle molecular weight DOM (MDOM, 1–10 kDa), and high molecular weight DOM (HDOM, 10 kDa–0.45 μm). The log K COC ranged from 5.34 to 6.14 L/kg-C for OP and from 5.59 to 6.04 L/kg-C for BPA. The OP and BPA log K COC values were insignificantly different ( p = 0.37) and had a strong positive correlation (r = 0.85, p < 0.001). The OP and BPA LDOM log K COC was significantly higher than the HDOM and MDOM log K COC ( p = 0.012 for BPA, p = 0.023 for OP). The average specific ultraviolet absorption (SUVA 254 ) values were 32.0 ± 5.4, 13.8 ± 1.0, and 17.9 ± 2.8 L/mg-C/m for LDOM, MDOM, and HDOM, respectively. The log K COC values for both OP and BPA had a moderately positive correlation with the SUVA 254 values (r = 0.79–0.84, p < 0.002), which suggested the aromatic group content in the DOM had a positive impact on sorption behavior.

Suggested Citation

  • Cheng-Wen Chuang & Wei-Shiang Huang & Hong-Sheng Chen & Liang-Fong Hsu & Yung-Yu Liu & Ting-Chien Chen, 2021. "Sorption Constant of Bisphenol A and Octylphenol Onto Size-Fractioned Dissolved Organic Matter Using a Fluorescence Method," IJERPH, MDPI, vol. 18(3), pages 1-14, January.
    • Handle: RePEc:gam:jijerp:v:18:y:2021:i:3:p:1102-:d:487573
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    References listed on IDEAS

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    1. Jue Ding & Yu Cheng & Zulin Hua & Cong Yuan & Xiaoju Wang, 2019. "The Effect of Dissolved Organic Matter (DOM) on the Release and Distribution of Endocrine-Disrupting Chemicals (Edcs) from Sediment under Hydrodynamic Forces, A Case Study of Bisphenol A (BPA) and Non," IJERPH, MDPI, vol. 16(10), pages 1-13, May.
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