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首页> 外文期刊>X-Ray Spectrometry: An International Journal >EDXRF characterisation of elemental contents in PM2.5 in a medium-sized Swedish city dominated by a modern waste incineration plant
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EDXRF characterisation of elemental contents in PM2.5 in a medium-sized Swedish city dominated by a modern waste incineration plant

机译：EDXRF表征瑞典中型城市中以现代垃圾焚烧厂为主的PM2.5中的元素含量

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摘要

Energy dispersive x-ray fluorescence (EDXRF) analysis of airborne particles has previously been shown to be a powerful technique for identifying key elements or elemental ratios for identification of important sources of air pollution. In the present work the technique was used for assignment of major sources of aerosol particles (PM2.5) in a medium sized Swedish city in southwestern Sweden, in which a new incinerator of household and industrial waste had recently been installed. Data on particle mass and black carbon contents in PM2.5 were also recorded together with SO2 and NO2 during the same study period. In spite of the small data set it was possible to identify five major sources for collected PM2.5, namely, waste incineration together with other local sources, oil incineration, biomass burning, long-distance transport and traffic emissions. Major characteristic elements for the respective sources were identified from regression analysis of the data and from information obtained in previous studies. A receptor model based on the use of trace observations was used for quantitative calculation of the source contribution to PM2.5. The relative strength of the identified sources was seen to change when the variables included in the analysis were varied in number and character, although the same sources remained. It must be noted that the quantitative contribution from the different sources maybe treated only as informative at present, since the number of observations are small compared to the number of variables. Copyright (C) 2007 John Wiley & Sons, Ltd.
机译：空气颗粒物的能量色散X射线荧光（EDXRF）分析以前已被证明是一种用于识别关键元素或元素比的重要技术，可用于识别重要的空气污染源。在目前的工作中，该技术被用于分配瑞典西南部中型瑞典城市中的气溶胶颗粒（PM2.5）的主要来源，该城市最近安装了新的家庭和工业垃圾焚化炉。在同一研究期间，还记录了PM2.5中颗粒质量和黑碳含量的数据以及SO2和NO2。尽管数据集很小，但仍有可能确定收集PM2.5的五个主要来源，即废物焚化和其他本地来源，石油焚化，生物质燃烧，长途运输和交通排放。从数据的回归分析和从先前研究中获得的信息，确定了各个来源的主要特征元素。基于痕量观察的受体模型用于定量计算源对PM2.5的贡献。当分析中包含的变量的数量和特征发生变化时，可以看出已识别来源的相对强度发生了变化，尽管仍然存在相同的来源。必须指出的是，由于观测的数量与变量的数量相比，目前来自不同来源的定量贡献仅可作为参考。版权所有（C）2007 John Wiley＆Sons，Ltd.

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