title: Simultaneous monitoring of PCDD/Fs and PCBs in contaminated air with semipermeable membrane devices and fresh spruce needles.
abstract: The contaminated air with burning plastic floor and electronic scrap was monitored with semipermeable membrane devices (SPMDs) and fresh unpolluted spruce needles at the same time for polychlorinated dibenzo-p-dioxins and polychlorinated dibenzofurans (PCDD/Fs) and polychlorinated biphenyls (PCBs). It was found that there were more polychlorinated dibenzofurans (PCDFs) than polychlorinated dibenzo-p-dioxins (PCDDs) collected from contaminated air. The total amounts of PCBs were much higher than that of PCDD/Fs, but the contribution of them to the WHO-TEQ was less than that of PCDD/Fs. Triolein-containing SPMDs can absorb much more PCDD/Fs and PCBs than spruce needles when they were exposed in contaminated air simultaneously. The logarithm of the concentrations of PCDD/Fs and PCBs in SPMDs and in spruce needles at the same sampling time exhibited a significant linear correlation, the correlation coefficients were larger than 0.86 for PCDD/Fs and 0.92 for PCBs. SPMDs and spruce needles are effective passive air sampler for PCDD/Fs and PCBs. SPMDs and spruce needles can complement each other in passive air sampling.
authors.affiliation: School of Environmental and Chemical Engineering, Dalian Jiaotong University, Dalian, China. zhuxiuhua1@hotmail.com
authors.forename: Xiuhua
authors.initials: X
authors.lastname: Zhu
authors.forename: Gerd
authors.initials: G
authors.lastname: Pfister
authors.forename: Bernhard
authors.initials: B
authors.lastname: Henkelmann
authors.forename: Jarmila
authors.initials: J
authors.lastname: Kotalik
authors.forename: Stefan
authors.initials: S
authors.lastname: Fiedler
authors.forename: Karl-Werner
authors.initials: KW
authors.lastname: Schramm
mesh_terms: D000393:Air Pollutants / Q000032:analysis* / Q000737:chemistry*; D000397:Air Pollution / Q000032:analysis; D001572:Benzofurans / Q000032:analysis* / Q000737:chemistry; D000072338:Dibenzofurans, Polychlorinated; D004781:Environmental Exposure; D008567:Membranes, Artificial; D010539:Permeability; D028222:Picea / Q000737:chemistry*; D018515:Plant Leaves / Q000737:chemistry*; D011078:Polychlorinated Biphenyls / Q000032:analysis* / Q000737:chemistry
chemical_list: D000393:Air Pollutants; D001572:Benzofurans; D000072338:Dibenzofurans, Polychlorinated; D008567:Membranes, Artificial; D011078:Polychlorinated Biphenyls