title: Metallic elements study on fine and coarse particulates during daytime and nighttime periods at a traffic sampling site.
abstract: Fine (PM2.5) and coarse (PM(2.5-10)) particulates were collected simultaneously by using a versatile air pollutant system at a traffic sampling site during daytime and nighttime sampling periods during August 2003 to March 2004. A flame atomic absorption spectrophotometer coupled with hollow cathode lamps were used for chemical analysis. Enrichment factor and principal component analysis were used to compare chemical components and to find the possible emission sources at this traffic sampling site. The variation of metallic element concentrations on fine and coarse particulates during daytime and nighttime was also discussed in this study. Soil dust, traffic exhaust, marine salt and anthropogenic activities were the major pollutant sources at the traffic sampling site in central Taiwan.
authors.affiliation: Department of Environmental Engineering, Hungkuang University, Sha-Lu, Taichung 433, Taiwan. gcfang@sunrise.hk.edu.tw
authors.forename: Guor-Cheng
authors.initials: GC
authors.lastname: Fang
authors.forename: Yuh-Shen
authors.initials: YS
authors.lastname: Wu
authors.forename: Jyh-Cherng
authors.initials: JC
authors.lastname: Chen
authors.forename: Peter
authors.initials: P
authors.lastname: Pi-Cheng Fu
authors.forename: Cheng-Nan
authors.initials: CN
authors.lastname: Chang
authors.forename: Ming-Hsiang
authors.initials: MH
authors.lastname: Chen
mesh_terms: D000388:Air / Q000032:analysis*; D000393:Air Pollutants / Q000032:analysis*; D004784:Environmental Monitoring; D019216:Metals, Heavy / Q000032:analysis*; D010316:Particle Size; D013624:Taiwan; D001335:Vehicle Emissions / Q000032:analysis*
chemical_list: D000393:Air Pollutants; D019216:Metals, Heavy; D001335:Vehicle Emissions