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Assessment and characterization of ambient indoor particulate matters using aerosol monitor, inductively coupled plasma mass spectrometry, and transmission electron microscopy

机译:使用气溶胶监测仪,电感耦合等离子体质谱法和透射电子显微镜对室内室内颗粒物进行评估和表征

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摘要

In this work, we studied the levels of ambient indoor particulate matters in some work premises of Al-Ain city during the months June–July 2013. Work premises included United Arab Emirates University (UAEU) campus, hospitals, and schools. We also studied the chemical composition and morphology of collected particulate matters using inductively coupled plasma mass spectrometry (ICP-MS) and transmission electron microscope (TEM). Our results indicated average total concentrations less than 50.00 μg/m3 for PM1.0, PM2.5, PM4.0, plus PM10.0 in closed sites. Sites crowded with customers coming in and out such as entrances of hospitals and municipality gave average total concentrations in the range 160.0–200.0 μg/m3. Higher average total concentrations were found in sites with high outdoor air exchange. Particulate matters in the city ambient air originate from neighboring deserts and mountain and carried out by storms covering the country for different time intervals over the year. Correlation between the levels of particulate matters (PMs) and metrological parameters during the time of study was found insignificant. ICP-MS elemental analysis of collected particulate matters revealed sulfur and silicon-based particles containing significant amounts of calcium, sodium, boron, aluminum, magnesium, potassium, and chlorine. TEM imaging of collected particles showed clusters of crystalline and amorphous particulates corresponding to the silicate and sulfate matrices, respectively. Although the levels we recorded for particulate matters are generally in accordance with the United Arab Emirates and WHO standards for indoor PMs, our findings are important since long exposures to silicate and sulfate particles represent high risk factors on public health.
机译:在这项工作中,我们研究了2013年6月至7月间Al-Ain市某些办公场所的室内室内颗粒物水平。办公场所包括阿拉伯联合酋长国大学(UAEU)校园,医院和学校。我们还使用感应耦合等离子体质谱(ICP-MS)和透射电子显微镜(TEM)研究了收集的颗粒物的化学组成和形态。我们的结果表明,封闭区域的PM1.0,PM2.5,PM4.0和PM10.0的平均总浓度低于50.00μg/ m3。医院和市政厅等人流密集的进出场所的平均总浓度在160.0-200.0μg/ m3之间。在室外空气交换较高的地点发现平均总浓度较高。城市环境空气中的颗粒物来自邻近的沙漠和山区,并由一年中不同时间间隔的风暴席卷全国。研究期间,颗粒物(PM)含量与计量参数之间的相关性被认为是微不足道的。 ICP-MS对收集的颗粒物进行元素分析发现,硫和硅基颗粒含有大量的钙,钠,硼,铝,镁,钾和氯。收集到的颗粒的TEM成像显示分别对应于硅酸盐和硫酸盐基质的结晶和无定形颗粒簇。尽管我们记录的颗粒物含量通常符合阿拉伯联合酋长国和WHO关于室内PM的标准,但我们的发现很重要,因为长期暴露于硅酸盐和硫酸盐颗粒中代表了公共卫生的高风险因素。

著录项

  • 来源
    《Air quality, atmosphere & health》 |2015年第2期|193-203|共11页
  • 作者单位

    1.Department of Chemistry College of Science UAE University Al-Ain P.O. Box 1551 United Arab Emirates;

    1.Department of Chemistry College of Science UAE University Al-Ain P.O. Box 1551 United Arab Emirates;

    1.Department of Chemistry College of Science UAE University Al-Ain P.O. Box 1551 United Arab Emirates;

    1.Department of Chemistry College of Science UAE University Al-Ain P.O. Box 1551 United Arab Emirates;

    1.Department of Chemistry College of Science UAE University Al-Ain P.O. Box 1551 United Arab Emirates;

    1.Department of Chemistry College of Science UAE University Al-Ain P.O. Box 1551 United Arab Emirates;

    1.Department of Chemistry College of Science UAE University Al-Ain P.O. Box 1551 United Arab Emirates;

  • 收录信息
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    Indoor air; Particulate matters; Health risks; Al-Ain; TEM; ICP-MS;

    机译:室内空气;颗粒物;健康风险;Al-Ain;TEM;ICP-MS;

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