Simultaneous monitoring of PCDD/Fs and PCBs in contaminated air with semipermeable membrane devices and fresh spruce needles
| Autor: | Stefan Fiedler, Jarmila Kotalik, Gerd Pfister, Karl-Werner Schramm, Xiuhua Zhu, Bernhard Henkelmann |
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| Rok vydání: | 2007 |
| Předmět: |
Air sampling
Environmental Engineering Health Toxicology and Mutagenesis Air pollution medicine.disease_cause Electronic scrap Permeability Air Pollution medicine Environmental Chemistry Picea Toxic equivalency factor Benzofurans Air Pollutants Persistent organic pollutant Chemistry Public Health Environmental and Occupational Health Membranes Artificial Environmental Exposure General Medicine General Chemistry Dibenzofurans Polychlorinated Polychlorinated Biphenyls Pollution Plant Leaves Semipermeable membrane devices Environmental chemistry Contaminated air Polychlorinated dibenzofurans |
| Zdroj: | Chemosphere. 68:1623-1629 |
| ISSN: | 0045-6535 |
| Popis: | 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. |
| Databáze: | OpenAIRE |
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