title: Evidence of PCDD/Fs and PCBs contamination in trees grown in forests far from their production and contamination-free areas.
abstract: Polychlorinated dibenzo-p-dioxins/polychlorinated dibenzofurans (PCDD/Fs) and polychlorinated biphenyls (PCBs) in trees grown in pathless forests were analyzed to investigate their dispersal patterns in the atmosphere. The pg/g levels of 23 PCCD, 22 PCDF, and 54 PCB congeners were identified. The total amount of PCDDs in the red pine tree sample (95.8 pg/g) was approximately 7 times that in the beech tree sample (13.2 pg/g). The total amount of PCDFs in the red pine tree sample (71.1 pg/g) was also approximately 7 times that in the beech tree sample (11.1 pg/g). The total amounts of PCBs in the red pine tree and beech tree samples were 1,380 and 1,150 pg/g, respectively. The (Cl1-Cl3)-PCBs comprised 63.1 % and 67.6 % of total PCBs in the red pine and in the beech, respectively. The results of the present study indicate that PCDD/Fs and PCBs are transferred over long distances in the atmosphere and accumulated in the contamination-free areas.
authors: Environmental Safety Center, Tokyo University of Science, 12-1 Funagawara-Machi, Ichigaya, Shinjuku-Ku, Tokyo, 162-0826, Japan.
authors: A
authors: A
authors: Yasuhara
authors: T
authors: T
authors: Katami
authors: T
authors: T
authors: Shibamoto
mesh_terms: D001572:Benzofurans / Q000032:analysis*; D000072338:Dibenzofurans, Polychlorinated; D004785:Environmental Pollutants / Q000032:analysis*; D029964:Fagus / Q000737:chemistry; D028223:Pinus / Q000737:chemistry; D011078:Polychlorinated Biphenyls / Q000032:analysis*; D000072317:Polychlorinated Dibenzodioxins / Q000031:analogs & derivatives* / Q000032:analysis; D013048:Specimen Handling; D014197:Trees / Q000737:chemistry*; D062065:Wastewater / Q000032:analysis
chemical_list: D001572:Benzofurans; D000072338:Dibenzofurans, Polychlorinated; D004785:Environmental Pollutants; D011078:Polychlorinated Biphenyls; D000072317:Polychlorinated Dibenzodioxins; D062065:Wastewater