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首页> 外文期刊>Environmental Science & Technology >Genotoxicity of Water Concentrates from Recreational Pools after Various Disinfection Methods
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Genotoxicity of Water Concentrates from Recreational Pools after Various Disinfection Methods

机译:各种消毒方法后,娱乐池水浓缩液的遗传毒性

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摘要

Swimming and hot tub bathing are popular exercises and diversions. Disinfection of recreational pools is essential to prevent outbreaks of infectious disease. Recent research demonstrated an association between the application of disinfectants to recreational pools and adverse health outcomes. These pool waters represent extreme cases of disinfection that differ from disinfecting drinking waters. Pool waters are continuously exposed to disinfectants over average residence times extending to months. Disinfection byproduct (DBP) precursors include natural humic substances plus inputs from bathers through urine, sweat hair, skin, and consumer products including cosmetics and sunscreens. This study presents a systematic mammalian cell genotoxicity analysis to evaluate different recreational waters derived from a common tap water source. The data demonstrated that all disinfected recreational pool water samples induced more genomic DNA damage than the source tap water. The type of disinfectant and illumination conditions altered the genotoxicity of the water. Accordingly, care should be taken in the disinfectant employed to treat recreational pool waters. The genotoxicity data suggest that brommating agents should be avoided. Combining chlorine with UV may be beneficial as compared to chlorination alone. During the recycling of pool water the organic carbon could be removed prior to disinfection. Behavior modification by swimmers may be critical in reducing the genotoxicity of pool water. Actions such as showering before entering the water and informing patrons about the potential harm from urinating in a pool could reduce the precursors of toxic DBPs.
机译:游泳和热水浴是流行的运动和娱乐活动。休闲池的消毒对于防止传染病爆发至关重要。最近的研究表明,在娱乐场所使用消毒剂与不良健康后果之间存在关联。这些池水代表了与饮用水消毒不同的极端消毒情况。泳池水在平均停留时间(长达数月)内连续暴露于消毒剂。消毒副产物(DBP)的前体包括天然腐殖质,加上沐浴者通过尿液,汗毛,皮肤和消费品(包括化妆品和防晒霜)得到的投入。这项研究提出了系统的哺乳动物细胞遗传毒性分析,以评估源自普通自来水源的不同休闲水。数据表明,所有消毒过的休闲泳池水样品比自来水引起的基因组DNA损伤更多。消毒剂的类型和光照条件改变了水的遗传毒性。因此,应注意使用用于处理休闲泳池水的消毒剂。遗传毒性数据表明应避免使用溴化剂。与单独氯化相比,将氯与UV混合可能是有益的。在池水循环利用过程中,有机碳可以在消毒之前去除。游泳者改变行为可能对降低泳池水的遗传毒性至关重要。诸如入水前淋浴以及告知顾客游泳池中小便的潜在危害之类的措施可减少有毒DBP的前体。

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  • 来源
    《Environmental Science & Technology》 |2010年第9期|P.3527-3532|共6页
  • 作者单位

    Grup de Mutagenesi, Departament de Genetica i de Microbiologia, Edifici Cn, Universitat Autonoma de Barcelona, Bellaterra, Cerdanyola del Valles, Spain;

    rnDepartment of Crop Sciences and the Center of Advanced Materials for the Purification of Water with Systems, University of Illinois at Urbana-Champaign, Urbana, Illinois 61801;

    rnDepartment of Chemical Engineering, Yale University, New Haven, Connecticut 06520;

    rnDepartment of Chemical Engineering, Yale University, New Haven, Connecticut 06520;

    rnDepartment of Crop Sciences and the Center of Advanced Materials for the Purification of Water with Systems, University of Illinois at Urbana-Champaign, Urbana, Illinois 61801;

  • 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
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