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首页> 外文期刊>Applied radiation and isotopes: including data, instrumentation and methods for use in agriculture, industry and medicine >Determination of multi-element profiles of street dust using energy dispersive X-ray fluorescence (EDXRF).
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Determination of multi-element profiles of street dust using energy dispersive X-ray fluorescence (EDXRF).

机译：使用能量色散X射线荧光（EDXRF）测定街道灰尘的多元素分布。

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Street dust samples have been collected in different areas in Hong Kong associated with various levels of traffic and pedestrian flow, and the concentrations of 23 chemical elements have been determined using energy dispersive X-ray fluorescence (EDXRF). The 23 studied elements were Na, Al, Si, Cl, Ti, Ba, V, Cr, Mn, Fe, Co, K, Ca, Ni, Cu, Zn, As, Pb, Rb, Sr, Y, Zr and Sn. A profile for average street dust for Hong Kong has been determined by taking average values for different areas. The values for the Hong Kong street dust are commensurate with the values derived in previous investigations or for other countries, except that Hong Kong street dust has much higher Cl, Ca and As concentrations. A factor analysis gives four sources for the street dust in Hong Kong: namely, mixture of metallic dust and crustal material, vehicles, road pavement materials, and mixture of marine aerosols and crustal material.
机译：在香港不同地区收集了与交通和行人流量不同水平相关的街道灰尘样品，并使用能量色散X射线荧光（EDXRF）测定了23种化学元素的浓度。研究的23种元素是Na，Al，Si，Cl，Ti，Ba，V，Cr，Mn，Fe，Co，K，Ca，Ni，Cu，Zn，As，Pb，Rb，Sr，Y，Zr和Sn 。通过获取不同地区的平均值来确定香港平均街道尘埃的分布。香港路边的尘埃值与先前调查或其他国家得出的值相称，不同之处在于香港路边的尘埃中的Cl，Ca和As含量高得多。因子分析提供了香港街道尘埃的四种来源：金属尘埃和地壳材料的混合物，车辆，道路路面材料以及海洋气溶胶和地壳材料的混合物。

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