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Variation, correlation, and toxicity of phenolic endocrine-disrupting compounds in surface water

机译:地表水中酚类内分泌干扰物的变化,相关性和毒性

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摘要

This study investigated the variation in toxicity of phenolic endocrine-disrupting compounds (EDCs) and determined the correlation between their concentrations. All twenty-four samples acquired from a polluted river contained five phenolic EDCs. The EDC nonylphenol (NP) concentration was found to be the highest (4.26 ± 2.74 μg/L) in the river water. In addition the concentrations of nonylphenol diethoxylate, (NP_2EO), octylphenol (OP), nonylphenol monoethoxylate (NP_1EO), and bisphenol A (BPA) were 1.58 ± 1.37 μg/L; 2.90 ± 2.77 μg/L; 2.89 ±2.15 μg/L; and 2.25 ± 0.96 μg/L, respectively. Concentrations of NP, NPiEO, and OP were significantly greater in the daytime than in the nighttime samples. Furthermore, concentrations of NP, NP_1EO, and NP_2EO showed a strong correlation due to similar parent compounds while BPA and OP did not. NP_1EO had the highest risk to aquatic organisms (hazard quotient, HQ = 26.3) and BPA the lowest (HQ = 2.24). The accumulative HQ sum (hazard index, HI) was 81.3 within all the samples. The HI was 110.3 in the daytime samples. This was 97% higher than in the nighttime HI (56.3), which suggested daytime anthropogenic discharges were an important source of toxicity to aquatic organisms.
机译:这项研究调查了酚内分泌干扰化合物(EDCs)的毒性变化,并确定了它们之间的相关性。从受污染的河流中采集的所有24个样品均含有5个酚类EDC。发现河水中的EDC壬基酚(NP)浓度最高(4.26±2.74μg/ L)。此外,壬基酚二乙氧基化物(NP_2EO),辛基酚(OP),壬基酚单乙氧基化物(NP_1EO)和双酚A(BPA)的浓度为1.58±1.37μg/ L; 2.90±2.77微克/升; 2.89±2.15微克/升;和2.25±0.96μg/ L。白天,NP,NPiEO和OP的浓度明显高于夜间样品。此外,由于相似的母体化合物,NP,NP_1EO和NP_2EO的浓度显示出很强的相关性,而BPA和OP却没有。 NP_1EO对水生生物的风险最高(危险商,HQ = 26.3),而BPA最低(HQ = 2.24)。在所有样本中,HQ的累积总和(危险指数,HI)为81.3。白天样本的HI为110.3。这比夜间HI(56.3)高97%,后者表明白天人为排放是对水生生物毒性的重要来源。

著录项

  • 来源
    《Journal of Environmental Science and Health》 |2009年第12期|1244-1250|共7页
  • 作者单位

    Department of Environmental Science and Engineering, National Pingtung University of Science and Technology, Pingtung, Taiwan;

    Department of Environmental Resources Management, Tajen University, Pingtung, Taiwan;

    Department of Civil Engineering, National Pingtung University of Science and Technology, Pingtung, Taiwan;

    Department of Environmental Science and Engineering, National Pingtung University of Science and Technology, Pingtung, Taiwan;

    Department of Environmental Science and Engineering, National Pingtung University of Science and Technology, Pingtung, Taiwan;

    Department of Environmental Science and Engineering, National Pingtung University of Science and Technology, Pingtung, Taiwan;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);美国《生物学医学文摘》(MEDLINE);美国《化学文摘》(CA);
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    alkylphenolic ethoxylate; endocrine-disrupting compound; bisphenol A; correlation; toxicity; variation;

    机译:烷基酚乙氧基化物;破坏内分泌的化合物双酚A;相关性毒性;变异;

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