title: Ambient air monitoring of PCDD/Fs and co-PCBs in Gyeonggi-do, Korea.
abstract: We started the monitoring for PCDD/Fs in ambient air and soil in August 2001, and co-PCBs in January 2002. Decreasing of PCDD/Fs and co-PCBs levels in ambient air were observed. The higher PCDD/Fs levels were found in winter and lower in autumn. We found that the industrial incinerators influenced the PCDD/Fs levels in ambient air. In the 2,3,7,8-substituted PCDD/Fs concentration profiles, the three major congeners occupied 67% of the total mass. In case of co-PCBs, PCB#118, #105 and #77 were observed as the main congeners. Five cluster groups discriminated by ratio of four components, O(8)CDD, 1,2,3,4,6,7,8-H(7)CDD, 1,2,3,4,6,7,8-H(7)CDF and O(8)CDF, were obtained from HCA (hierarchical cluster analysis).
authors.affiliation: Department of Environmental Research, Gyeonggi Institute of Health and Environment, 324-1 Pajang-dong, Jangan-gu, Suwon, Gyeonggi-do 440-290, Republic of Korea.
authors.forename: Dong Gi
authors.initials: DG
authors.lastname: Kim
authors.forename: Yoon Ki
authors.initials: YK
authors.lastname: Min
authors.forename: Ju Yong
authors.initials: JY
authors.lastname: Jeong
authors.forename: Gu Hwan
authors.initials: GH
authors.lastname: Kim
authors.forename: Joo Yeol
authors.initials: JY
authors.lastname: Kim
authors.forename: Chin Suk
authors.initials: CS
authors.lastname: Son
authors.forename: Dong Hoon
authors.initials: DH
authors.lastname: Lee
mesh_terms: D000393:Air Pollutants / Q000032:analysis*; D001572:Benzofurans / Q000032:analysis*; D002947:Cities; D016000:Cluster Analysis; D004784:Environmental Monitoring; D017745:Incineration; D007220:Industrial Waste; D007723:Korea; D011078:Polychlorinated Biphenyls / Q000032:analysis*; D000072317:Polychlorinated Dibenzodioxins / Q000031:analogs & derivatives* / Q000032:analysis; D025341:Principal Component Analysis; D012621:Seasons
chemical_list: D000393:Air Pollutants; D001572:Benzofurans; D007220:Industrial Waste; D000072317:Polychlorinated Dibenzodioxins; D011078:Polychlorinated Biphenyls