The study of fine and coarse particles, and metallic elements for the daytime and night-time in a suburban area of central Taiwan, Taichung.
作者： Guor-Cheng Fang , Cheng-Nan Chang , Yuh-Shen Wu , Vicky Wang , Peter Pi-Cheng Fu
DOI: 10.1016/S0045-6535(99)00507-X
关键词:
摘要: Daily average concentrations of fine and coarse particulates, TSP samples have been measured simultaneously at daytime night-time periods by using Universal PS-1 sampler in a suburban area central Taiwan from June to August 1998. The were analyzed atomic absorption spectrometry determine the particulate metallic elements (Ca, Fe, Mn, Pb, Cu, Zn Cr). concentration PM2.5 showed decreased trend for period. particle about two times as that concentrations. averaged are higher than night-time. Ca Fe mostly mode. correlation coefficients 0.63 0.69 mode day night periods. Pb similar distribution ratio with Mn ratios both highly correlated (R=0.78) period (R=0.61) size <2.5 μm. Cu mainly particles consist major parts all elements. Elemental is lowest among rest heavy metals.
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