The behaviour of traffic produced nanoparticles in a car cabin and resulting exposure rates

Fast response sequential measurements and modelling of nanoparticles inside and outside a car cabin

“…The DMS50 has recently been employed in studies within the same car cabin 139 (Joodatnia et al, 2013) and for the on-board measurements (Carpentieri and Kumar, 2011). …”

“…The total outdoor air flow rate (7.7×10 −2 m 3 s −1 ) were 128 estimated by means of tracer gas technique as part of our earlier work (Joodatnia et al, 2013). 129…”

“…PNDs for background (minimum) PNCs 267 were found to be well above the lowest level of PNDs that the DMS50 is capable to detect for 268 particle diameters above 7 nm. Further details of instrument signal-to-noise ratio are 269 discussed in our recent study (Joodatnia et al, 2013). 270…”

“…The scale of such emissions can be estimated from the total number 41 of road vehicles in operation worldwide, a figure put at more than 1 billion in 2010 (Sousanis, 42 2011). Road users are one of the most exposed groups and recent research by the authors 43 (Joodatnia et al, 2013) demonstrated that freshly emitted nanoparticles comprised more than 44 99% of particle number concentrations (PNCs) inside a car cabin during journeys on typical 45 UK urban roads. We continue that focus in this paper and investigate the relationship 46 between nanoparticle pollution inside a car cabin and that prevailing outside, and the physical 47 behaviour of particles within a cabin.…”

“…These measurements were 227 conducted at a single point at the front passenger seat (Joodatnia et al, 2013 …”