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Carbonaceous aerosols at an industrial site in Southeastern Spain

机译：西班牙东南部工业现场的碳质气溶胶

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摘要

The aim of the present study is to evaluate the possible influence of cement works on carbonaceous aerosol concentrations in the western Mediterranean. A PM2.5 and PM10 sampling campaign was performed between September 2005 and August 2006 in a suburban area close to two cement plants in southeastern Spain. All the samples were analyzed for elemental carbon (EC) and organic carbon (OC) using a thermal-optical method. The percentage contribution of total carbon to annual PM mass concentrations was 20 % for PM2.5 and 10 % for PM10. These values were lower than those reported for other European urban and industrial locations because of a higher proportion of crustal matter and secondary inorganic aerosols in the study area. The seasonal cycle of OC concentrations, with higher values in winter than in summer, was influenced by the transport of cement plants’ emissions to the sampling site, as corroborated by the results obtained from the CPF analysis. In contrast, no clear effect of cement plants’ emissions on EC concentrations could be established. The concentrations of secondary organic carbon (SOC) in the PM2.5 fraction were estimated using the EC tracer method. The contribution of SOC to the annual OC concentration was 50 %, varying between 30 % in July and 70 % in February. Contrary to expectations, SOC levels also exhibited a summer minimum, suggesting that photochemistry cannot be considered to be the leading factor in the formation of secondary organic aerosols in the research area.
机译：本研究的目的是评估水泥工程对地中海西部碳质气溶胶浓度的可能影响。 2005年9月至2006年8月，在西班牙东南部靠近两个水泥厂的郊区进行了PM2.5和PM10采样活动。使用热光学方法对所有样品的元素碳（EC）和有机碳（OC）进行了分析。对于PM2.5，总碳对年度PM质量浓度的百分比贡献为20％，对于PM10为10％。这些值低于其他欧洲城市和工业区的报告值，因为研究区域中地壳物质和次生无机气溶胶的比例更高。 CPF分析得出的结果证实了水泥厂的OC浓度的季节性周期（冬季高于夏季）受水泥厂排放物向采样点的运输的影响。相反，无法确定水泥厂排放物对EC浓度的明显影响。使用EC示踪法估算PM2.5馏分中的次级有机碳（SOC）浓度。 SOC对年度OC浓度的贡献为50％，在7月的30％和2月的70％之间变化。与预期相反，SOC水平也表现出夏季最低值，这表明光化学不能被认为是研究区域二次有机气溶胶形成的主要因素。

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  • 来源
    《Air quality, atmosphere & health》 |2014年第3期|263-271|共9页
  • 作者

    E. Yubero; N. Galindo; J. F. Nicolás; F. Lucarelli; G. Calzolai;

  • 作者单位

    1.Atmospheric Pollution Laboratory (LCA) Department of Applied Physics Miguel Hernández University Avenida de la Universidad S/N 03202 Elche Spain;

    1.Atmospheric Pollution Laboratory (LCA) Department of Applied Physics Miguel Hernández University Avenida de la Universidad S/N 03202 Elche Spain;

    1.Atmospheric Pollution Laboratory (LCA) Department of Applied Physics Miguel Hernández University Avenida de la Universidad S/N 03202 Elche Spain;

    2.Department of Physics and Astronomy and INFN University of Florence Sesto Fiorentino 50019 Florence Italy;

    2.Department of Physics and Astronomy and INFN University of Florence Sesto Fiorentino 50019 Florence Italy;

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

    PM2.5; PM10; Organic carbon; Elemental carbon; Cement plants;

    机译：PM2.5;PM10;有机碳;元素碳;水泥厂;

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