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Short-, medium-, and long-chain chlorinated paraffins in South African indoor dust and cat hair
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Number of Authors: 62020 (English)In: Chemosphere, ISSN 0045-6535, E-ISSN 1879-1298, Vol. 238, article id 124643Article in journal (Refereed) Published
Abstract [en]

Polychlorinated n-alkanes or chlorinated paraffins (CPs) contain a magnitude of structural isomers and are categorized as short-chain (SCCPs), medium-chain (MCCPs), and long-chain (LCCPs) CPs, according to the carbon chain lengths. In this study the Sigma SCCPs, Sigma MCCPs, and Sigma LCCP concentrations are reported for South African indoor dust and pet cat hair. The median concentrations of the Sigma CPs (C-9-C-37) ranged from 33 to 663 mu g/g for freshly collected dust (FD), 36-488 mu g/g for dust collected from household vacuum cleaner bags (VD), and 1.2-15 mu g/g for cat hair (CH) samples. MCCPs were the dominant CP group, followed by SCCPs and LCCPs. The Sigma MCCP concentration ranged from 13 to 498 mu g/g in dust and 0.6-6.5 mu g/g in cat hair. SCCPs with shorter carbon chains and lower chlorine substitution were observed in cat hair. LCCPs with carbon chains > C(20)were detected in dust and hair samples, possibly indicating the use of wax grade LCCP formulations. Non-traditional Kendrick mass defect plots were used to obtain information on the magnitude of CPs and provide evidence of possible interfering compounds. This is the first report on the occurrence of SCCPs, MCCPs, and LCCPs in the South African indoor environment. 

Place, publisher, year, edition, pages
2020. Vol. 238, article id 124643
Keywords [en]
Short-chain chlorinated paraffins, Medium-chain chlorinated paraffins, Long-chain chlorinated paraffins, Indoor environment, Indoor dust, Pet cat hair
National Category
Earth and Related Environmental Sciences
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URN: urn:nbn:se:su:diva-176619DOI: 10.1016/j.chemosphere.2019.124643ISI: 000497885800020PubMedID: 31473532OAI: oai:DiVA.org:su-176619DiVA, id: diva2:1381927
Available from: 2019-12-30 Created: 2019-12-30 Last updated: 2020-01-30Bibliographically approved

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de Boer, JacobWeiss, Jana M.
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