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Simultaneous monitoring of profiles of polycyclic aromatic hydrocarbons in contaminated air with semipermeable membrane devices and spruce needles |
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| Authors: | Zhu Xiuhua Pfister Gerd Henkelmann Bernhard Kotalik Jarmila Bernhöft Silke Fiedler Stefan Schramm Karl-Werner |
| Institution: | a School of Environmental and Chemical Engineering, Dalian Jiaotong University, Dalian 116028, China b Helmholtz Zentrum München - German Research Center for Environmental Health, Institute of Ecological Chemistry, Ingolstädter Landstr. 1, D-85764 Neuherberg, Munich, Germany c TUM, Wissenschaftszentrum Weihenstephan fuer Ernaehrung und Landnutzung, Department fuer Biowissenschaftliche Grundlagen, Weihenstephaner Steig 23, 85350 Freising, Germany |
| Abstract: | Gaseous emissions of combusted electronic scrap, PVC, carpet and wood were monitored for polycyclic aromatic hydrocarbons (PAHs) by simultaneous use of semipermeable membrane devices (SPMDs) and shoots of spruce needles (Picea abies). It was found that phenanthrene, acenaphthylene and fluorene were the dominating PAHs in all samples. SPMDs and needles mainly sequestered PAH associated with the vapor phase. Particle-bound PAHs were only detected in small amounts, at which the needles tended to uptake more of these compounds in comparison to the SPMDs. Nevertheless, the logarithm of the concentrations of PAHs analyzed in both passive samplers after the same sampling period exhibited a significant linear correlation with correlation coefficients larger than 0.8073. SPMDs and spruce needles can complement each other in passive air sampling for compounds with a preference to the gas phase rather than aerosols. |
| Keywords: | PAHs SPMDs Spruce needles |
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