Contribution to knowledge of exposure in car passenger compartments

Abstract : 1) Objectives : During a typical day a person's time is mostly divided between their home, workplace and either public or private transport. The dose received over the timescale of a day is the sum of doses received in these different micro-environments, which supposes knowledge of the time spent in each of them as well as the quality and variability of pollutant concentrations. The aim of the project presented here is to study the levels and dynamics of pollutants entering a particularly important micro-environment, that of the passenger compartment. This is done by considering: - nitrogen oxides, carbon monoxide, particle number and size; - monitoring exposure during various trips (highway, beltways); - taking into account factors that influence exposure, such as the distance between the source vehicle and the target vehicle. 2) Method : A vehicle was equipped with two NOx analysers (TEI), a CO analyser (Maihak), a granulometer (ELPI J DEKATI) and particle counter (P-Track / TSI). The measurements focused on the air expelled at the outlet of the passenger compartment ventilator. Trips were made in different environments such as a highway and the Paris beltway, as well as in a tunnel at night behind a known type of vehicle for a known distance. 3) Results and conclusions : Orders of magnitude of concentration were determined for the pollutants considered for different exposure conditions (open and closed environments, and light and heavy traffic). During tunnel driving tests, a clear link was established between exposure characteristics on the one hand and, on the other, factors such as the nature of the vehicle followed, its engine rating and the distance separating the target and the source.
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  • HAL Id : ineris-00972541, version 1
  • INERIS : EN-2006-137

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Olivier Le Bihan, Agathe Grossmith, Frantz Gouriou, Mikaël Renaud, Robin Aujay. Contribution to knowledge of exposure in car passenger compartments. 2. Conference "Environment & transport"including the 15. Conference "Transport and air pollution", Jun 2006, Reims, France. pp.36-41. ⟨ineris-00972541⟩

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