Sources and elemental composition of aerosol in Pasadena, California, by energy-dispersive x-ray fluorescence
Sources and elemental composition of aerosol in Pasadena, California, by energy-dispersive x-ray fluorescence
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通过能量色散 X 射线荧光分析加利福尼亚州帕萨迪纳气溶胶的来源和元素组成
DOI：
10.1021/es60110a008
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发表时间：
1975
影响因子：
11.4
通讯作者：
W. Pierson
中科院分区：
文献类型：
--
作者：
R. Hammerle;W. Pierson
在加州帕萨迪纳的自动X射线荧光光谱仪获得的颗粒物的元素组成的数据进行了分析，特别是参考的9个元素的来源一致测量合理的精度：钙，钛，钒，锰，铁，镍，锌，溴，铅。结果表明，汽油机尾气是Br和Pb的主要来源。汽油发动机排气中存在的颗粒物对气溶胶质量的平均贡献为5.35微克/立方米。土壤是Ca、Ti、Mn和Fe的主要来源，在采样期间平均贡献8.35微克/立方米的气溶胶质量。钒、镍和锌至少有三种来源尚未确定。所有测量的元素显示出强烈的浓度波动（数量级）在一个短（2小时或更短）的时间尺度。
Data on the elemental composition of particulate matter obtained with an automatic X-ray fluorescence spectrometer in Pasadena, California, are analyzed with special reference to the sources of nine elements consistently measurable with reasonable accuracy: Ca, Ti, V, Mn, Fe, Ni, Zn, Br, and Pb. It is found that gasoline-engine exhaust is the chief source of the Br and Pb. Particulate matter present in the gasoline-engine exhaust contributed 5.35 micrograms/cu m on the average to the aerosol mass. Soil is the main source of the Ca, Ti, Mn, and Fe and contributes 8.35 micrograms/cu m on the average to the aerosol mass during sampling. Vanadium, Ni, and Zn originate from at least three further sources not identified. All elements measured show strong concentration fluctuations (orders of magnitude) on a short (2 hr or less) time scale.