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首页> 外文期刊>Environmental toxicology and chemistry >Sorption and degradation of estrogen-like-endocrine disrupting chemicals in soil.
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Sorption and degradation of estrogen-like-endocrine disrupting chemicals in soil.

机译：破坏雌激素样内分泌的化学物质在土壤中的吸附和降解。

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摘要

Studies were undertaken to assess sorption of seven endocrine-disrupting chemicals (EDCs), namely, estrone (E1), 17beta-estradiol (E2), estriol (E3), 17alpha-ethynylestradiol (EE2), bisphenol A (BPA), 4-tert-octyl phenol (4-t-OP), and 4-n-nonyl phenol (4-n-NP) on four soils (from sandy to clay soil) with different physicochemical properties and biodegradation of five EDCs (BPA, E2, EE2, 4-t-OP, and 4-n-NP) in a loam soil associated with wastewater reuse. We also characterized the biotransformation of E2 to El in the loam soil under aerobic and anaerobic conditions. Sorption test using a batch equilibrium method demonstrated that alkylphenols (4-t-OP and 4-n-NP) had the strongest sorption onto soils, followed by estrogens (EE2, E2, El, E3) and BPA. This laboratory study showed that all five EDCs, including the degradation product El, were degraded rapidly in the soil within 7 d under aerobic conditions. However, under anaerobic conditions in the soil, little or no degradation of the five EDCs was noted except for E2, which showed slow degradation during the 70-d study. The calculated half-lives for E2 under anaerobic conditions were 24 d in the soil. Estradiol was found to be biotransformed to E1 under both aerobic and anaerobic conditions. The study suggested that the five EDCs as well as El, which may be present in reclaimed wastewater, would not persist in well-aerated soil. But these EDCs persisting in anaerobic soil may affect soil and groundwater quality and ecosystem.
机译：进行研究以评估七种破坏内分泌的化学物质（EDC）的吸附，即雌酮（E1），17β-雌二醇（E2），雌三醇（E3），17α-乙炔基雌二醇（EE2），双酚A（BPA），4-四种土壤（从沙土到黏土）上的叔辛基苯酚（4-t-OP）和4-正壬基苯酚（4-n-NP）具有不同的理化性质和五个EDC（BPA，E2， EE2、4-t-OP和4-n-NP）在与废水回用相关的壤土中。我们还表征了好氧和厌氧条件下壤土中E2到El的生物转化。使用间歇平衡法进行的吸附测试表明，烷基酚（4-t-OP和4-n-NP）对土壤的吸附最强，其次是雌激素（EE2，E2，E1，E3）和BPA。这项实验室研究表明，在有氧条件下，所有五个EDC（包括降解产物El）都在7天内迅速在土壤中降解。但是，在土壤厌氧条件下，除了E2以外，五个EDC几乎没有降解，甚至没有观察到，E2在70天的研究中显示出缓慢的降解。在厌氧条件下，E2在土壤中的半衰期为24 d。发现在好氧和厌氧条件下雌二醇都可以生物转化为E1。该研究表明，再生废水中可能存在的五个EDC和El，不会在通风良好的土壤中持续存在。但是这些持续存在于厌氧土壤中的EDC可能会影响土壤和地下水的质量以及生态系统。

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  • 来源
    《Environmental toxicology and chemistry》 |2005年第10期|P.2640-2645|共6页
  • 作者

    Ying GG; Kookana RS;

  • 作者单位

    CSIRO Land and Water, Adelaide laboratory, PMB 2, Glen Osmond SA 5064, Australia. guang-guo.ying@csiro.au;

  • 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 药学;
  • 关键词

    Soil; Estradiol; degradation; 土壤; 雌二醇;

    机译：Soil;Estradiol;degradation;土壤;雌二醇;

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