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首页> 外文期刊>Environmental Science & Technology >Evaluation of Hydrogenated Resin Acids as Molecular Markers for Tire-wear Debris in Urban Environments
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Evaluation of Hydrogenated Resin Acids as Molecular Markers for Tire-wear Debris in Urban Environments

机译：评价氢化树脂酸作为城市环境中轮胎磨损碎片的分子标记

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摘要

To propose new molecular markers for tire-wear emissions, four dihydroresin acids, that is, 8-isopimaren-18-oic acid (I), 8-pimaren-18-oic acid (II), 13β(H)-abieten-18-oic acid (III), and 13α(H)-abiet-8-en-18-oic add (IV), were identified and investigated for source specificities, distributions, and environmental stabilities. The absence of I-IV in natural sources and the linear correlations between dihydroresin acids with different skeletons in tires and in environmental samples demonstrated that I-IV are specific markers for synthetic rubbers. The ratio of III + IV to the sum of III + IV plus abietfc acid showed the resin acids distribution between different environmental compartments receiving contributions from traffic and natural sources. The physicochemical properties and results of photolysis experiments suggested that I-IV can set lower limits for tire-wear contributions to environmental loads of paniculate matter (PM) and porycyclic aromatic hydrocarbons with molecular weight ≧202. By comparing III + IV concentrations or (m+IV)/pyrene or (UI+IV)/benzo[α]pyrene ratios in tires and those in environmental matrices, the contributions of tire-wear emissions to PM, pyrene, and benzo[α]pyrene were estimated to be 0.68 ± 0.54%, 6.9 ± 4.8%, and 0.37 ± 0.18% in roadside PM and 0.83 ± 0.21%, 0.88 ± 0.52%, and 0.08 ± 0.06% in rooftop PM.
机译：为了提出用于轮胎磨损排放的新分子标记，应使用四种二氢树脂酸，即8-isopimaren-18-oic acid（I），8-pimaren-18-oic acid（II），13β（H）-abieten-18鉴定了-oic acid（III）和13α（H）-abiet-8-en-18-oic add（IV）的来源特异性，分布和环境稳定性，并进行了研究。天然来源中不含I-IV以及轮胎和环境样品中具有不同骨架的二氢树脂酸之间的线性相关性表明I-IV是合成橡胶的特定标记。 III + IV与III + IV加松香酸之和的比率表明，树脂酸在不同环境区室之间的分布受到交通和自然资源的贡献。理化性质和光解实验的结果表明，I-IV可以为轮胎磨损对分子量≥202的颗粒物质（PM）和多环芳烃的环境负荷设置较低的限制。通过比较轮胎和环境基质中的III + IV浓度或（m + IV）/ py或（UI + IV）/苯并[α] py比，轮胎磨损排放对PM，pyr和苯并[在路边的PM中，估计的α] were分别为0.68±0.54％，6.9±4.8％和0.37±0.18％，在屋顶的PM中估计为0.83±0.21％，0.88±0.52％和0.08±0.06％。

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  • 来源
    《Environmental Science & Technology》 |2011年第23期|p.9990-9997|共8页
  • 作者

    Hidetoshi Kumata; Mika Mori; Sho Takahashi; Shohei Takamiya; Mikio Tsuzuki; Tatsuya Uchida; Kitao Fujiwara;

  • 作者单位

    Faculty of Life Sciences, Tokyo University of Pharmacy and Life Sciences, Hachioji, Tokyo 192-0392, Japan;

    Graduate School of Life Sciences, Tokyo University of Pharmacy and Life Sciences, Hachioji, Tokyo 192-0392, Japan,Japan Food Research Laboratories, Tama, Tokyo 206-0025, Japan;

    Faculty of Life Sciences, Tokyo University of Pharmacy and Life Sciences, Hachioji, Tokyo 192-0392, Japan;

    Faculty of Life Sciences, Tokyo University of Pharmacy and Life Sciences, Hachioji, Tokyo 192-0392, Japan;

    Faculty of Life Sciences, Tokyo University of Pharmacy and Life Sciences, Hachioji, Tokyo 192-0392, Japan;

    Faculty of Life Sciences, Tokyo University of Pharmacy and Life Sciences, Hachioji, Tokyo 192-0392, Japan;

    Faculty of Life Sciences, Tokyo University of Pharmacy and Life Sciences, Hachioji, Tokyo 192-0392, Japan;

  • 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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