Simultaneous monitoring of PCDD/Fs and PCBs in contaminated air with semipermeable membrane devices and fresh spruce needles.
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.
Zhu
Xiuhua
X
School of Environmental and Chemical Engineering, Dalian Jiaotong University, Dalian, China. zhuxiuhua1@hotmail.com
Pfister
Gerd
G
Henkelmann
Bernhard
B
Kotalik
Jarmila
J
Fiedler
Stefan
S
Schramm
Karl-Werner
KW
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
D000393:Air Pollutants; D001572:Benzofurans; D000072338:Dibenzofurans, Polychlorinated; D008567:Membranes, Artificial; D011078:Polychlorinated Biphenyls