Application of ICP-MS in Assessing the Pollution of Seldom Monitored Trace Elements in City Roadside Dusts
YIN Shu-hua1, GAO Bo1*, LI Qiang2, ZHOU Huai-dong1, WANG Jian-kang3, HUANG Yong1
1. Department of Water Environment, China Institute of Water Resources and Hydropower Research, Beijing 100038, China 2. School of Resources and Environment, North China College of Water Resources and Hydropower, Zhengzhou 450011, China 3. College of Water Conservancy & Architectural Engineering, Shihezi University, Shihezi 832000, China
Abstract：Seldom monitored trace element concentrations in road dusts colleted from Shihezi City were studied. A total of 32 sampling stations were selected. The concentration of 10 seldom monitored trace elements (B, Be, Bi, Co, Ga, Li, Sb, Sn, Tl, V) were determined. Their pollution degree and source identification were analyzed by using Geoaccumulation Index, correlation coefficient and principal factor analysis. The results indicated that the mean concentrations of Li, Be, B, V, Co, Ga, Sn, Sb, Tl and Bi were 24.91, 1.68, 41.11, 72.66, 13.58, 36.26, 3.64, 3.37, 0.42 and 0.52 mg·kg-1, respectively. The mean concentrations of Li, Tl, Co, Be, B, and V were lower than or similar to the soil background values of Xinjiang province. However, the mean concentrations of Ga, Sn, Sb and Bi were higher than the background values of Xijiang province and world soil. The results of Geoaccumulation Index indicated that the pollution degrees of Li, Be, B, V, Co, Ga and Tl were zero, and belonged to the category of non-pollution. However the pollution of Sb, Bi and Sn were considerably serious, and their pollution grades were 2, 1 and 1 respectively. The source of SMTEs in road dusts of Shihezi City was identified by multivariate statistics (principal component analysis and correlation analysis). The results showed that Sb, Co, Tl and Bi mainly originated from human activities, Li, Be, B, V represented natural sources, while Sn and Ga have the mixed sources of nature and human activities.
Key words：Seldom monitored trace elements;Roadside dusts;Geoaccumulation index;Pollution sources;Shihezi city
殷淑华1，高 博1*，李 强2，周怀东1，王健康3，黄 勇1 . ICP-MS在城市道路尘土中非常规监测微量元素污染评价中的应用 [J]. 光谱学与光谱分析, 2013, 33(12): 3396-3401.
YIN Shu-hua1, GAO Bo1*, LI Qiang2, ZHOU Huai-dong1, WANG Jian-kang3, HUANG Yong1 . Application of ICP-MS in Assessing the Pollution of Seldom Monitored Trace Elements in City Roadside Dusts . SPECTROSCOPY AND SPECTRAL ANALYSIS, 2013, 33(12): 3396-3401.
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