Scented Candles and incenses as indoor air fresheners : health risk assessment from real emission measurements

Abstract : As part of the EBENE research project, a health risk assessment was performed for two types of widely used combustible air fresheners: scented candles and incenses. The assessment was based on physiochemical characterization of the particulate and gaseous emissions of 9 scented candles and 10 incenses, tested under real conditions in an experimental house MARIA (CSTB), combined with a national phone survey about household uses. Results obtained showed that chronic exposures could exceed usual health reference values for a reasonable-worst-case type scenario. Substances of concern included PM (particulate matter), benzene, acrolein and, to a lesser extent, formaldehyde, for incenses, and formaldehyde, acrolein and, to a lesser extent, PM, for scented candles. For all of these substances, exceedances were also identified for short term exposures (1 hour). These results suggest that good practice – use reasonably, ventilate the room after use, avoid direct inhalation of any smoke, etc. – and reducing the emissions of high-emissivity products could be necessary to insure a safe use.
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Guillaume Karr, Alexandre Albinet, E. Quivet, D. Buiron, François Maupetit, et al.. Scented Candles and incenses as indoor air fresheners : health risk assessment from real emission measurements. 14. International Conference on Indoor Air Quality and Climate (Indoor Air 2016), Jul 2016, Ghent, Belgium. ⟨ineris-01863023⟩

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