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Mise au point d’une nouvelle méthode de prélèvement pour l’analyse des composés organiques semi-volatils

Abstract : It is now recognised that indoor environments contribute significantly to human exposure to airborne pollutants. Among the chemicals released in indoor environments, some of them have been identified as hormonally active or carcinogens. The objective of this study has been to develop an analytical method based on thermal desorption (TD) for the measurement of semivolatile organic compounds (SVOCs) to be use for indoor and personal measurements. The sampler consists of a small PM2.5 impactor upstream of a sample tube filled with the adsorbent Tenax TA to collect the particulate and gaseous phases respectively. The experimental work focused on the development of a vapour generation system, the development of the analytical method for the analysis of both the gaseous and particulate phases and the evaluation of the performance of the developed method. The analytical method was developed for 16 PAHs, 6 OPAHs, 5 phthalates, 2 organophosphate esters, 3 alkylphenols and 5 pesticides. Its applicability for PAHs measurements was verified with a standard reference material and by comparison of indoor air filter strips analysed by the TD method and a conventional solvent extraction method. The TD method was shown to be quantifiable for PAHs up to benzo[a]pyrene but less effective for less volatile PAHs. A small demonstration study consisting of twenty four hours indoor and personal measurements was carried during six days. The results obtained in this demonstration study were in agreement with most previous studies reporting indoor heavy PAHs concentrations lower or similar than outdoor PAHs concentrations and light PAHs concentrations higher indoors than in outdoor environments. This demonstration study also confirmed that phthalates and organophosphate esters are ubiquitous in indoor environment.
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https://hal-ineris.archives-ouvertes.fr/ineris-01869242
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Submitted on : Thursday, September 6, 2018 - 1:04:35 PM
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  • HAL Id : ineris-01869242, version 1

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Yoann Fagault, Eva Leoz-Garziandia. Mise au point d’une nouvelle méthode de prélèvement pour l’analyse des composés organiques semi-volatils. Rapport Scientifique INERIS, 2009, 2008-2009, pp.33-35. ⟨ineris-01869242⟩

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