RAMALHO, Olivier; GEHIN, Evelyne; GUEGAN, Hervé; DANJOU, Jean; DERBEZ, Mickael; KIRCHNER, Séverine

Métadonnées

Licence d’utilisation du document

RAMALHO, Olivier
Centre Scientifique et Technique du Bâtiment [CSTB]

GEHIN, Evelyne
Centre d'Etudes et Recherches en Thermique, Environnement et Systèmes [Créteil] [CERTES EA 3481]

GUEGAN, Hervé
Centre d'Etudes Nucléaires de Bordeaux Gradignan [CENBG]
Centre d'Etudes Nucléaires de Bordeaux Gradignan [CENBG]

Langue

Communication dans un congrès

Ce document a été publié dans

Proceedings of Indoor Air 2008, Proceedings of Indoor Air 2008, 2008-08-17, Copenhagen. 2008p. Paper ID 246, 8 pages

Résumé en anglais

Kerosene heaters are known to emit pollutants in the indoor environment but ultrafine particle emission was never reported. A kerosene heater was characterized in an experimental chamber using four different instruments to monitor particle number concentration and size distribution down to 5 nm. Another experiment was realized to collect particles and determine their composition in elements, ions, organic/elemental carbon and polycyclic aromatic hydrocarbons. The kerosene heater produced ultrafine particles in the range 5 to 40 nm with a count median diameter of 9.5 nm. The emission rate was (1.8±0.3)×1011 particle*s-1. Chromium and manganese (4 and 0.05 ng*g-1 of burned fuel) were specifically associated with kerosene combustion. Trace levels of sulfates, nitrates, phenanthrene and fluoranthene were also detected. Scanning electron microscopy showed submicronic aggregates mostly composed of carbon and traces of silicon. Our findings showed that kerosene heaters represent a major indoor source of ultrafine particles.< Réduire

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Importé de hal

Unités de recherche

Centre d'Études Nucléaires de Bordeaux Gradignan (CENBG)