Ambient air particulates-bound metallic elements sources identifications during winter and summer at a Science Park

Fang, Guor-Cheng; Huang, Chao-Yang; Zhuang, Yuan-Jie; Huang, Wen-Chuan; Tsai, Kai-Hsiang; Xiao, You-Fu

Ambient air particulates-bound metallic elements sources identifications during winter and summer at a Science Park

2018

The ambient air particulates pollutants of total suspended particulates (TSP) and PM₂.₅ were collected by using PS-1 and Wilbur PM₂.₅ sampler, simultaneously during the year of 2015–2017 at a photoelectric factory in Science Park of central Taiwan. And those of the ambient air atmospheric metallic elements (Cr, Mn, Ni, Cu, Zn, Pb) concentrations which attached on the TSP and PM₂.₅ were analyzed by using inductively coupled plasma optical emission spectrometer. In addition, identifying anthropogenic and natural pollutants sources were conducted by using the enrichment factor (EF) and principal component analysis (PCA) methods. The results indicated that the average TSP and PM₂.₅ concentrations were ranked highest in winter season, while summer season was ranked lowest during the year of 2015–2016. In addition, the average highest metallic element concentrations were occurred in winter season for both TSP and PM₂.₅ during the year of 2015–2016, while the average lowest metallic elements concentrations in TSP and PM₂.₅ were also occurred in winter season during the year of 2016–2017. Moreover, the EF analysis results showed that the metallic element Zn came from anthropogenic emission source. As for metallic element Mn, the results showed that metallic element Mn was mainly attributed to natural emission in this study. Finally, the PCA results showed that metallic elements Cr, Zn and Pb were the dominant emissions metallic elements in this study. As for PM₂.₅, the results showed that the metallic elements Cr, Cu and Pb were the dominant emissions metallic elements at this HPB sampling site.

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