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彭佳屿岛春季TSP痕量金属组成及其来源解析
罗笠
作者单位E-mail
罗笠 东华理工大学水资源与环境工程学院 lluo1982@163.com 
摘要:
摘要:2010年3月至5月在台湾北部东海海域彭佳屿岛采集了60个总悬浮颗粒物(TSP)样品,用电感耦合等离子体质谱仪(ICP-MS)分析了19种痕量金属(Al, Fe, Ti, Y, Mn, Ba, Sr, Co, Cr, V, Ni, TI, Zn, Sn, Pb, As, Cd, Sb, Se)的浓度. 基于TSP中Al浓度、气团后向轨迹分析和美国国家宇航局CALIPSO卫星星载激光雷达扫描图像,本研究把采集的TSP分为不受沙尘影响的TSP(非沙尘TSP)和受沙尘影响的TSP(沙尘TSP). 沙尘TSP中所有痕量金属的浓度都高于非沙尘TSP,表明沙尘对彭佳屿岛TSP中痕量金属有贡献. 结合富集因子、相关性分析和PMF模型,本研究认为彭佳屿岛春季非沙尘TSP中Al、Fe、Ti和Y主要来源于地壳矿物,Mn、Ba、Sr、Co和Cr同时受地壳矿物和人为源的影响;沙尘TSP中Al、Fe、Ti、Y、Mn、Ba、Sr、Co和Cr主要来源于地壳矿物. V和Ni在彭佳屿岛春季非沙尘TSP中主要来源于燃料油燃烧,而在沙尘TSP中同时受燃料油燃烧和地壳矿物的影响. 非沙尘TSP和沙尘TSP中,Tl、Zn、As、Sn、Pb、Cd、Sb和Se 的来源相似. Tl主要源于交通和煤燃烧,Zn、Sn、Pb、Cd和Sb同时来源于交通,煤和燃料油燃烧,As主要来源于煤燃烧,Se则主要来源于煤和燃料油燃烧. 这些表明彭佳屿岛春季非沙尘TSP和沙尘TSP中Tl、Zn、As、Sn、Pb、Cd、Sb和Se都来源于人为活动.
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Compositions and Sources Apportionment of Spring TSP Trace Metals in Pengjiayu Island
Luo Li
Abstract:
Abstract: Total of 60 total suspended particulates (TSP) samples were collected in Pengjia Islet, northern sea of Taiwan, China, from March to May in 2010, and concentrations of trace metals (Al, Fe, Ti, Y, Mn, Ba, Sr, Co, Cr, V, Ni, TI, Zn, Sn, Pb, As, Cd, Sb, Se) were analyzed by ICP-MS. Together with the concentration of Al, the air mass backward trajectories and the Lidar browse images of CALIPSO from the National Aeronautics and Space Administration (NASA), we divided the TSP samples into non-dust TSP and dust TSP. Concentrations of all the trace metals in dust TSP were higher than those in non-dust TSP, suggested that dust can bring and Se both in non-dust TSP and dust TSP. Tl from both the vehicle and coal combustion, Zn, Sn, Pb, Cd and Sb more trace metals to the open-sea island. Together with the enrichment factor, correlation analysis and the model of positive matrix factorization, studies shown that Al, Fe, Ti and Y in non-dust TSP mainly sourced from crust and Mn, Ba, Sr, Co and Cr originated from both the crust and anthropogenic sources, but in dust TSP, Al, Fe, Ti, Y, Mn, Ba, Sr, Co and Cr dominantly from the crust. V and Ni sourced from the fuel oil combustion in non-dust TSP, but for the dust TSP, V and Ni originated from both the fuel oil combustion and crust. There were similar sources for Tl, Zn, As, Sn, Pb, Cd, Sb from vehicle, coal and oil combustion, and As from the coal combustion, and Se from the fossil fuel combustion. Trace metals, such as Tl, Zn, As, Sn, Pb, Cd, Sb and Se dominantly sourced from the anthropogenic activities can reach as far as the Pengjia Islet by atmospheric long-range transport in spring.
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