Speciation of Elements in PM10 of Tunnel Studied by XAFS

JIN Chan; ZOU Yang; ZHANG Gui-Lin; TAN Ming-Guang; PENG Lan; LI Yu-Lan; CHEN Wen-Zhong; LI Yan; XIE Ya-Ning; LIU Tao

Chinese Physics C> 2005, Vol. 29> Issue(S1) : 89-92

Speciation of Elements in PM10 of Tunnel Studied by XAFS

中科院上海原子核研究所

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Abstract：
The PM₁₀ samples were collected at three different sites in or out a tunnel in Shanghai. The XAFS (X-ray absorption fine structure) spectroscopy was applied for the speciation of iron and lead in the samples. The chemical components were determined by IFEFFIT program. The results show: Fe₂O₃, Fe₃O₄, Fe₂(NO₃)₃ and FeO are presented as the main components in the samples of different sites. In the middle of the tunnel, Fe(NO₃)₃ and FeO are in high proportion, but outside of the tunnel, the proportion of these two components goes down, besides, the proportion of Fe₂O₃ increases. The main lead species are PbSO₄, PbO₂, Pb₃(PO₄)₂ and a little PbO in samples of different sites. Similarly, the proportion of PbSO₄ and PbO₂ is higher than that of the outside. And there is a small amount of PbO out of the tunnel. There is considerable difference between the middle and outside in the two elemental species, which is caused by the different pollution source and environment.

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JIN Chan, ZOU Yang, ZHANG Gui-Lin, TAN Ming-Guang, PENG Lan, LI Yu-Lan, CHEN Wen-Zhong, LI Yan, XIE Ya-Ning and LIU Tao. Speciation of Elements in PM10 of Tunnel Studied by XAFS[J]. Chinese Physics C, 2005, 29(S1): 89-92.

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Received: 2005-10-28
Revised: 1900-01-01

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通讯作者: 陈斌, bchen63@163.com

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沈阳化工大学材料科学与工程学院沈阳 110142

Speciation of Elements in PM10 of Tunnel Studied by XAFS

Corresponding author: LI Yan,

中科院上海原子核研究所

Received Date: 2005-10-28

Accepted Date: 1900-01-01

Available Online: 2005-01-02

Abstract: The PM₁₀ samples were collected at three different sites in or out a tunnel in Shanghai. The XAFS (X-ray absorption fine structure) spectroscopy was applied for the speciation of iron and lead in the samples. The chemical components were determined by IFEFFIT program. The results show: Fe₂O₃, Fe₃O₄, Fe₂(NO₃)₃ and FeO are presented as the main components in the samples of different sites. In the middle of the tunnel, Fe(NO₃)₃ and FeO are in high proportion, but outside of the tunnel, the proportion of these two components goes down, besides, the proportion of Fe₂O₃ increases. The main lead species are PbSO₄, PbO₂, Pb₃(PO₄)₂ and a little PbO in samples of different sites. Similarly, the proportion of PbSO₄ and PbO₂ is higher than that of the outside. And there is a small amount of PbO out of the tunnel. There is considerable difference between the middle and outside in the two elemental species, which is caused by the different pollution source and environment.

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Speciation of Elements in PM10 of Tunnel Studied by XAFS

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