Iron-containing atmospheric suspended particles samples were collected at different places of urban district in Shanghai City; and studied with measure by M?ssbauer spectroscopy. The results show that the iron of the atmospheric aerosols in the tunnel is mainly existed in the form of a-Fe2O3 with particle size about 10nm; while that in the viaduct and park is mainly high spin Fe3+ possibly existing in the form of sulfate and a small amount of a-FeOOH. In order to explore further the iron chemical form of aerosols in the viaduct and park, the measuring results with SPM(scanning proton micro-probe) have been analyzed; and the chemical process of the iron oxides converted to iron sulfate also discussed.%对上海市区不同地点空气中采集的含铁悬浮颗粒进行了穆斯堡尔光谱测量和研究.结果表明,铁在隧道气溶胶中主要以a-Fe2O3的形式存在,其粒径约10nm,在公园和高架路主要是高自旋三价铁,可能以硫酸铁盐和少量的a-FeOOH的形式存在.为进一步判明公园和高架路气溶胶中铁的化学形态,结合扫描质子微探针的测量结果进行了分析,对铁的氧化物转化为硫酸铁化合物的化学过程也进行了讨论.
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