Monitoring of PAHs Profiles in the Urban Air of Dalian, China with Active High-volume Sampler and Semipermeable Membrane Devices

Autor: Karl-Werner Schramm, Chengzhi Zhou, Jiping Chen, Wei Wang, Zhen Wang, Jun Mu, Yuwen Ni, Xindong Ma, Bernhard Henkelmann, Xiuhua Zhu, Gerd Pfister
Rok vydání: 2013
Předmět:
Zdroj: Polycyclic Aromatic Compounds. 33:265-288
ISSN: 1563-5333
1040-6638
Popis: The concentration of polycyclic aromatic hydrocarbons (PAHs) in the urban air of Dalian, China was monitored from November 2009 to October 2010 with an active high-volume sampler and a semipermeable membrane device (SPMD) passive sampler. The samples were analyzed for the sixteen US EPA priority monitoring PAHs using GC/MS. The concentrations of ∑PAHs in particle and gas phases ranged from 3.2–90.6 ng m−3 and 40.8–155 ng m−3, respectively. The PAHs of 3–4 rings covered 89.2% of the total concentrations (gas phase + particle phase). Furthermore, the gas-particle partitioning phenomena and the results measured from the field versus those predicted by the Junge-Pankow adsorption model, octanol-air partitioning coefficient (K OA) based absorption model, the absorption into the organic matter plus the adsorption to the soot carbon model using the soot-air partitioning coefficients (K SA) were discussed in this article. The dominant contributors of PAHs in the gas phase of active samples and SPMD passive sample...
Databáze: OpenAIRE
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