Toxicity of bisphenol A and its bioaccumulation and removal by a marine microalga Stephanodiscus hantzschii

Rui Li, Gui-Zhu Chen, Nora Fung Yee Tam, Tian-Gang Luan, Paul K.S. Shin, S. G. Cheung, Yu Liu

    Research output: Journal Publications and ReviewsRGC 21 - Publication in refereed journalpeer-review

    158 Citations (Scopus)

    Abstract

    The toxicity of bisphenol A (BPA) to Stephanodiscus hantzschii, a diatom isolated from tidal water of Futian Mangrove Nature Reserve, China, and the bioaccumulation and removal capability of the marine microalga to BPA were investigated in the present study. Toxicity experiments showed that the 96-h EC50 of BPA was 8.65±0.26 mg/L, and the cell number and chlorophyll a content of S. hantzschii decreased significantly with increases in BPA at concentrations higher than 3.00 mg/L. S. hantzschii had high removal capability at low BPA concentrations as BPA was bioaccumulated and biodegraded by cells. After 16-day treatment, 88%, 99%, 92%, 61%, 48%, 28% and 26% of BPA were removed by the diatom in the media supplemented with 0.01, 0.10, 1.00, 3.00, 5.00, 7.00 and 9.00 mg/L BPA, respectively. The present study demonstrated that S. hantzschii was a tolerant isolate that could be used to remove BPA from contaminated waters. © 2008 Elsevier Inc. All rights reserved.
    Original languageEnglish
    Pages (from-to)321-328
    JournalEcotoxicology and Environmental Safety
    Volume72
    Issue number2
    DOIs
    Publication statusPublished - Feb 2009

    Research Keywords

    • Bioaccumulation
    • Bisphenol A
    • Removal
    • Stephanodiscus hantzschii
    • Toxicity

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