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Effectiveness of traffic-related elements in tree bark and pollen abortion rates for assessing air pollution exposure on respiratory mortality rates

机译：树皮和花粉流产率中与交通有关的元素对评估空气污染暴露对呼吸道死亡率的有效性

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摘要

The majority of epidemiological studies correlate the cardiorespiratory effects of air pollution exposure by considering the concentrations of pollutants measured from conventional monitoring networks. The conventional air quality monitoring methods are expensive, and their data are insufficient for providing good spatial resolution. We hypothesized that bioassays using plants could effectively determine pollutant gradients, thus helping to assess the risks associated with air pollution exposure. The study regions were determined from different prevalent respiratory death distributions in the Sao Paulo municipality. Samples of tree flower buds were collected from twelve sites in four regional districts. The genotoxic effects caused by air pollution were tested through a pollen abortion bioassay. Elements derived from vehicular traffic that accumulated in tree barks were determined using energy-dispersive X-ray fluorescence spectrometry (EDXRF). Mortality data were collected from the mortality information program of Sao Paulo City. Principal component analysis (PCA) was applied to the concentrations of elements accumulated in tree barks. Pearson correlation and exponential regression were performed considering the elements, pollen abortion rates and mortality data. PCA identified five factors, of which four represented elements related to vehicular traffic. The elements Al, S, Fe, Mn, Cu, and Zn showed a strong correlation with mortality rates (R-2>0.87) and pollen abortion rates (R-2>0.82). These results demonstrate that tree barks and pollen abortion rates allow for correlations between vehicular traffic emissions and associated outcomes such as genotoxic effects and mortality data. (C) 2016 Elsevier Ltd. All rights reserved.
机译：大多数流行病学研究都通过考虑从常规监测网络测得的污染物浓度来关联空气污染暴露对心肺的影响。常规的空气质量监测方法价格昂贵，并且其数据不足以提供良好的空间分辨率。我们假设使用植物的生物测定可以有效确定污染物的梯度，从而有助于评估与空气污染暴露相关的风险。根据圣保罗市不同的流行性呼吸系统死亡分布确定研究区域。从四个地区的十二个地点收集了树花蕾的样本。通过花粉流产生物测定法测试了由空气污染引起的遗传毒性作用。使用能量色散X射线荧光光谱法（EDXRF）确定了在树皮中积累的源自车辆交通的元素。死亡率数据是从圣保罗市的死亡率信息计划中收集的。主成分分析（PCA）用于树皮中积累的元素浓度。考虑到要素，花粉流产率和死亡率数据，进行了Pearson相关和指数回归。 PCA确定了五个因素，其中四个代表与车辆交通有关的要素。 Al，S，Fe，Mn，Cu和Zn元素与死亡率（R-2> 0.87）和花粉流产率（R-2> 0.82）密切相关。这些结果表明，树皮和花粉流产率允许车辆交通排放与相关结果（如遗传毒性作用和死亡率数据）之间的相关性。 （C）2016 Elsevier Ltd.保留所有权利。

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  • 来源
    《Environment international》 |2017年第2期|161-169|共9页
  • 作者

    Carvalho-Oliveira Regiani; Amato-Lourenco Luis F.; Moreira Tiana C. L.; Rocha Silva Douglas R.; Vieira Bruna D.; Mauad Thais; Saiki Mitiko; Nascimento Saldiva Paulo H.;

  • 作者单位

    Sao Paulo Univ FMUSP, Sch Med, Sao Paulo, SP, Brazil|Natl Inst Integrated Anal Environm Risk INAIRA, Sao Paulo, SP, Brazil;

    Sao Paulo Univ FMUSP, Sch Med, Sao Paulo, SP, Brazil|Natl Inst Integrated Anal Environm Risk INAIRA, Sao Paulo, SP, Brazil;

    Sao Paulo Univ FMUSP, Sch Med, Sao Paulo, SP, Brazil|Natl Inst Integrated Anal Environm Risk INAIRA, Sao Paulo, SP, Brazil;

    Sao Paulo Univ FMUSP, Sch Med, Sao Paulo, SP, Brazil|Natl Inst Integrated Anal Environm Risk INAIRA, Sao Paulo, SP, Brazil;

    Sao Paulo Univ FMUSP, Sch Med, Sao Paulo, SP, Brazil|Natl Inst Integrated Anal Environm Risk INAIRA, Sao Paulo, SP, Brazil;

    Sao Paulo Univ FMUSP, Sch Med, Sao Paulo, SP, Brazil|Natl Inst Integrated Anal Environm Risk INAIRA, Sao Paulo, SP, Brazil;

    Natl Inst Integrated Anal Environm Risk INAIRA, Sao Paulo, SP, Brazil|Nucl & Energy Res Inst IPEN CNEN SP, Sao Paulo, SP, Brazil;

    Sao Paulo Univ FMUSP, Sch Med, Sao Paulo, SP, Brazil|Natl Inst Integrated Anal Environm Risk INAIRA, Sao Paulo, SP, Brazil;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);美国《化学文摘》(CA);
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    Air pollution; Mortality; Pollen abortion assay; Tree barks; Bioaccumulation and traffic related elements;

    机译：空气污染;死亡率;花粉堕胎分析;树皮;生物蓄积和交通相关要素;

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