Fang Guor-Cheng, Lo Chaur-Tsuen, Zhuang Yuan-Jie, Cho Meng-Hsien, Huang Chao-Yang, Xiao You-Fu, Tsai Kai-Hsiang
Department of Safety, Health and Environmental Engineering, Hung Kuang University, Sha-Lu, Taichung, 433, Taiwan, ROC.
Department of Biotechnology, National Formosa University, Yunlin, 63208, Taiwan, ROC.
Environ Geochem Health. 2017 Feb;39(1):99-108. doi: 10.1007/s10653-016-9810-8. Epub 2016 Mar 4.
This study measured the concentrations of particulates and metallic elements in ambient air by using PS-1 sampler (TSP) at Longjing area. And this study focuses on the collection of ambient air particulates, metallic elements, particulate-bound mercury Hg(p), concentrations. In addition, the sources of ambient pollutants by way of back trajectory analysis are found. Moreover, test mean concentration variance differences for metallic elements (PM, Hg(p), Mn, Fe, Zn, Cr, Cu, and Pb) among the four seasons (spring, summer, autumn and winter) through ANOVA are calculated. The result indicates that the average highest particulate concentration occurred in winter season, and the order was winter > spring > autumn > summer, and the mostly highest average metallic element (Mn, Fe, Zn, Cr, Cu, Pb) concentrations occurred in autumn. Moreover, the mostly average lowest metallic element concentrations occurred in summer. In addition, the above results of backward trajectories that the major particulate pollutants parcel mainly come from northeastern Taiwan. Moreover, when comparing the results of the first half year to that of the second half year, the they indicated that all metallic elements displayed significant differences in concentrations except those of Hg(p), Mn, Fe, Zn. Finally, metallic element Hg(p) is the only one which showed no significant concentration difference from either seasonal variations or half-year observations.
本研究利用PS - 1采样器（总悬浮颗粒物）在龙井地区测量了环境空气中颗粒物和金属元素的浓度。本研究重点关注环境空气颗粒物、金属元素、颗粒态汞Hg(p)的浓度采集。此外，通过后向轨迹分析确定了环境污染物的来源。而且，通过方差分析计算了四个季节（春、夏、秋、冬）中金属元素（颗粒物、Hg(p)、锰、铁、锌、铬、铜和铅）的测试平均浓度方差差异。结果表明，颗粒物平均最高浓度出现在冬季，顺序为冬季＞春季＞秋季＞夏季，大部分金属元素（锰、铁、锌、铬、铜、铅）的平均最高浓度出现在秋季。此外，大部分金属元素的平均最低浓度出现在夏季。另外，后向轨迹的上述结果表明，主要的颗粒物污染气团主要来自台湾东北部。而且，将上半年和下半年的结果进行比较时，结果表明除了Hg(p)、锰、铁、锌之外，所有金属元素的浓度均存在显著差异。最后，金属元素Hg(p)是唯一一个在季节变化或半年观测中浓度均无显著差异的元素。
