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Critical Review: Copper Runoff from Outdoor Copper Surfaces at Atmospheric Conditions

机译:批判性评论:大气条件下室外铜表面的铜径流

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摘要

This review on copper runoff dispersed from unsheltered naturally patinated copper used for roofing and facades summarizes and discusses influencing factors, available literature, and predictive models, and the importance of fate and speciation for environmental risk assessment. Copper runoff from outdoor surfaces is predominantly governed by electrochemical and chemical reactions and is highly dependent on given exposure conditions (size, inclination, geometry, degree of sheltering, and orientation), surface parameters (age, patina composition, and thickness), and site-specific environmental conditions (gaseous pollutants, chlorides, rainfall characteristics (amount, intensity, pH), wind direction, temperature, time of wetness, season). The corrosion rate cannot be used to assess the runoff rate. The extent of released copper varies largely between different rain events and is related to dry and wet periods, dry deposition prior to the rain event and prevailing rain and patina characteristics. Interpretation and use of copper runoff data for environmental risk assessment and management need therefore to consider site-specific factors and focus on average data of long-term studies (several years). Risk assessments require furthermore that changes in copper speciation, bioavailability aspects, and potential irreversible retention on solid surfaces are considered, factors that determine the environmental fate of copper runoff from outdoor surfaces.
机译:这篇关于从用于屋顶和外墙的自然防护铜中散布的铜径流的综述总结并讨论了影响因素,现有文献和预测模型,以及命运和物种形成对环境风险评估的重要性。室外表面的铜径流主要受电化学和化学反应控制,并且高度取决于给定的暴露条件(大小,倾角,几何形状,遮蔽程度和方向),表面参数(年龄,铜锈组成和厚度)和位置-特定的环境条件(气态污染物,氯化物,降雨特征(量,强度,pH),风向,温度,潮湿时间,季节)。腐蚀速率不能用于评估径流速率。铜释放的程度在不同的降雨事件之间差异很大,并且与干旱和潮湿时期,降雨事件之前的干燥沉积以及普遍的降雨和古铜色特性有关。因此,解释和使用铜径流数据进行环境风险评估和管理需要考虑特定地点的因素,并集中于长期研究(多年)的平均数据。风险评估还要求考虑到铜形态,生物利用度方面的变化以及在固体表面上潜在的不可逆滞留,这些因素决定了室外表面铜径流的环境命运。

著录项

  • 来源
    《Environmental Science & Technology》 |2014年第3期|1372-1381|共10页
  • 作者单位

    KTH Royal Institute of Technology, Department of Chemistry, School of Chemical Science and Engineering, Division of Surface and Corrosion Science, Drottning Kristinas vaeg 51, SE-100 44 Stockholm, Sweden;

    KTH Royal Institute of Technology, Department of Chemistry, School of Chemical Science and Engineering, Division of Surface and Corrosion Science, Drottning Kristinas vaeg 51, SE-100 44 Stockholm, Sweden;

    KTH Royal Institute of Technology, Department of Chemistry, School of Chemical Science and Engineering, Division of Surface and Corrosion Science, Drottning Kristinas vaeg 51, SE-100 44 Stockholm, Sweden;

    Department of Chemistry, Materials and Chemical Engineering 'Giulio Natta', Politecnico di Milano, P.za Leonardo da Vinci 32, 20133 Milano, Italy;

    KTH Royal Institute of Technology, Department of Chemistry, School of Chemical Science and Engineering, Division of Surface and Corrosion Science, Drottning Kristinas vaeg 51, SE-100 44 Stockholm, Sweden;

  • 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);
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  • 正文语种 eng
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