Characterisation of atmospheric semi-volatile organic compounds

dc.contributor.authorForbes, Patricia B.C.
dc.contributor.authorKarg, Erwin W.
dc.contributor.authorGeldenhuys, Genna-Leigh
dc.contributor.authorNsibande, Sifiso Albert
dc.contributor.authorZimmermann, Ralf
dc.contributor.authorRohwer, Egmont Richard
dc.contributor.emailpatricia.forbes@up.ac.zaen_US
dc.date.accessioned2014-05-29T10:33:32Z
dc.date.available2014-05-29T10:33:32Z
dc.date.issued2013-12
dc.description.abstractAtmospheric semi-volatile organic compounds (SVOCs), including polycyclic aromatic hydrocarbons (PAHs), are ubiquitous environmental pollutants, which may be present in the gaseous phase and adsorbed onto the surface of aerosol particles. A novel portable miniature denuder consisting of two multi-channel silicone rubber traps separated by a quartz fibre filter has been developed for such applications. It allows for the concentration of SVOCs in each phase to be determined, which is important for human health risk assessments. The overall particle transmission efficiency through the denuder was found to be 92 ± 4% for particles between 16 and 320 nm. SVOCs in the traps (gas phase) or on the filter (particle phase) are analysed by GC-MS, or by GCxGC-MS for enhanced separation capability. This enhances detection limits and allows for lower sampling flow rates and shorter sampling times. These denuders have been applied in studies involving the monitoring of emissions from domestic fires, vehicles and underground mine diesel engines.en_US
dc.description.librarianam2014en_US
dc.description.sponsorshipThe German-South African Year of Science Programme, the CSIR and Plat Mines.en_US
dc.description.uriwww.cleanairjournal.org.zaen_US
dc.identifier.citationForbes, PBC, Karg, EW, Geldenhuys, G-L, Nsibande, SA, Zimmermann, R & Rohwer, ER 2013, 'Characterisation of atmospheric semi-volatile organic compounds', Clean Air Journal = Tydskrif vir Skoon Lug, vol. 23, no. 1, pp.  1-6.en_US
dc.identifier.issn1017-1703
dc.identifier.urihttp://hdl.handle.net/2263/39949
dc.language.isoenen_US
dc.publisherNational Association for Clean Airen_US
dc.rightsNational Association for Clean Airen_US
dc.subjectDenuderen_US
dc.subjectParticulate matter (PM)en_US
dc.subjectAerosolen_US
dc.subjectSiliconeen_US
dc.subjectGCxGC-MSen_US
dc.subjectAir qualityen_US
dc.subjectHuman healthen_US
dc.subjectSemi-volatile organic compounds (SVOCs)en_US
dc.subjectPolycyclic aromatic hydrocarbons (PAHs)en_US
dc.titleCharacterisation of atmospheric semi-volatile organic compoundsen_US
dc.typeArticleen_US

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