title: Levels of PCDD/FS in ambient air and soil in the vicinity of a municipal solid waste incinerator in Hsinchu.
abstract: Levels of polychlorinated dibenzo-p-dioxins and dibenzofurans (PCDD/Fs) were determined in twenty-one ambient air samples, eight soil samples and two stack gas samples, collected near or in a municipal solid waste incinerator (MSWI) in Hsinchu, Taiwan. A systematic decrease of PCDD/Fs in the ambient air from the northeastern area was observed. PCDD/Fs levels measured in the ambient air range from 0.058 to 0.127 pg-TEQ/m3. Higher PCDD/Fs levels in the ambient air were found during winter. In addition, PCDD/Fs levels measured in the soil range from 0.524 to 5.02 pg-TEQ/g d.m. Principal component analysis (PCA) and hierarchical cluster analysis (HCA) did not provide sufficient evidence that the environmental PCDD/Fs contamination was caused by emissions from the Hsinchu MSWI. An unknown PCDD/Fs source was proposed using congener profile analysis and supported by both PCA and HCA.
authors.affiliation: Department of Chemistry, National Tsing Hua University, Hsinchu 30043 Taiwan, ROC.
authors.forename: Pai-Sheng
authors.initials: PS
authors.lastname: Cheng
authors.forename: Ming-Sheng
authors.initials: MS
authors.lastname: Hsu
authors.forename: Edward
authors.initials: E
authors.lastname: Ma
authors.forename: Ukai
authors.initials: U
authors.lastname: Chou
authors.forename: Yong-Chien
authors.initials: YC
authors.lastname: Ling
mesh_terms: D000393:Air Pollutants / Q000032:analysis*; D001572:Benzofurans / Q000032:analysis* / Q000737:chemistry; D016000:Cluster Analysis; D004784:Environmental Monitoring; D017745:Incineration; D000072317:Polychlorinated Dibenzodioxins / Q000031:analogs & derivatives* / Q000032:analysis*; D012621:Seasons; D012989:Soil Pollutants / Q000032:analysis*; D013624:Taiwan; D013997:Time Factors
chemical_list: D000393:Air Pollutants; D001572:Benzofurans; D000072317:Polychlorinated Dibenzodioxins; D012989:Soil Pollutants; C023614:dibenzofuran