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首页> 外文期刊>Environmental Science & Technology >The Possible Production of Harmful Intermediates Is the 'Dark Side' Of the Environmental Photochemistry of Contaminants (Potentially Adverse Effects, And Many Knowledge Gaps)
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The Possible Production of Harmful Intermediates Is the 'Dark Side' Of the Environmental Photochemistry of Contaminants (Potentially Adverse Effects, And Many Knowledge Gaps)

机译:有害中间体的可能产生是污染物环境光化学的“阴暗面”(可能产生不利影响,并且存在许多知识空白)

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摘要

Photochemical reactions, that is, transformation processes triggered by sunlight, help surface waters to get rid of a variety of contaminants, and particularly of biorecalcitrant compounds. Unfortunately, in some cases, the photodegrada-tion of a contaminant is offset by the production of harmful intermediates (e.g., toxic, mutagenic, or endocrine-disrupting compounds).1,2 The potential of a contaminant to produce harmful intermediate(s) is highly affected by environmental conditions, which are related both to the availability of sunlight and, at least as importantly, to features such as water chemistry and depth. For instance, the photochemical transformation of the anti-inflammatory drug ibuprofen into the toxic byproduct 4-isobutylacetophenone (IBAP) is favored in waters rich in dissolved organic matter (DOM), but minimized in DOM-poor environments.
机译:光化学反应,即由阳光引发的转化过程,可以帮助地表水清除各种污染物,尤其是生物难降解化合物。不幸的是,在某些情况下,污染物的光降解被有害中间体(例如,有毒,诱变或破坏内分泌的化合物)的产生所抵消。1,2污染物产生有害中间体的潜力受环境条件的影响很大,环境条件不仅与阳光的可用性有关,而且至少同样重要的是,与水化学和深度等特征有关。例如,在富含溶解性有机物(DOM)的水中,抗炎药布洛芬向有毒副产物4-异丁基苯乙酮(IBAP)的光化学转化是有利的,但在DOM贫乏的环境中则最小。

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  • 来源
    《Environmental Science & Technology》 |2020年第9期|5328-5330|共3页
  • 作者

    Davide Vione; Luca Carena;

  • 作者单位

    Dipartimento di Chimica Università di Torino 10125 Torino Italy;

  • 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
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