Pierre Comte
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View article: Exploring the oxidative potential of vehicles emissions from bench dynamometer to underground tunnels and parking lots 
Exploring the oxidative potential of vehicles emissions from bench dynamometer to underground tunnels and parking lots  Open
Health effects associated with aerosol exposure have been widely studied, demonstrating a positive association with mortality and poor health from a diversity of ailments. Emissions from vehicular traffic have been a major source of air po…
View article: Emissions of Volatile Methyl Siloxanes (VMSs) from Vehicles
Emissions of Volatile Methyl Siloxanes (VMSs) from Vehicles Open
Volatile Methyl Siloxanes (VMSs) are anthropogenic molecules emitted from personal care products and industrial chemical products. Recent studies have found that concentrations of VMSs tend to be higher in densely populated urban areas, al…
View article: Potential of PN Reduction in Passenger Cars with DPF and GPF
Potential of PN Reduction in Passenger Cars with DPF and GPF Open
Particle number concentration (PN) in vehicle exhaust and ambient air describes the number of ultrafine particles (UFPs) below 500 nm, which are recognized as a toxic and carcinogenic component of pollution and are regulated in several cou…
View article: Nanoparticle Counting for PTI - the Dirty Tail Paradigm
Nanoparticle Counting for PTI - the Dirty Tail Paradigm Open
Using solid particle number (PN) measurements in the European Periodic Technical Inspection (PTI) of diesel engines equipped with particulate filters was proposed by VERT in 2016 during the Dieselgate Hearing of the Federal Republic of Ger…
View article: Influences of special driving situations on emissions of passenger cars
Influences of special driving situations on emissions of passenger cars Open
Testing of real driving emissions (RDE) offers the opportunity to collect the data about the emissions in special driving, or non-driving situations. These situations are: cold start, warm-up of the engine, stop & go and idling. In the pre…
View article: Non-Regulated Emissions and PN of Two Passenger Cars with Diesel-Butanol Blends
Non-Regulated Emissions and PN of Two Passenger Cars with Diesel-Butanol Blends Open
Biofuels represent one of the alternatives to obtain the CO2-neutral propulsion of IC-engines. Butanol, which can be produced from biomass, is considered and was investigated in the last years due to the very advantageous characteristics o…
View article: Gas-phase composition and secondary organic aerosol formation from standard and particle filter-retrofitted gasoline direct injection vehicles investigated in a batch and flow reactor
Gas-phase composition and secondary organic aerosol formation from standard and particle filter-retrofitted gasoline direct injection vehicles investigated in a batch and flow reactor Open
Gasoline direct injection (GDI) vehicles have recently been identified as a significant source of carbonaceous aerosol, of both primary and secondary origin. Here we investigated primary emissions and secondary organic aerosol (SOA) from f…
View article: Non-legislated emissions and PN of two passenger cars with gasoline-butanol blends
Non-legislated emissions and PN of two passenger cars with gasoline-butanol blends Open
Increasing the sustainability of individual transportation and replacing a part of fossil energy in traffic by renewable energy carriers are worldwide important objectives. Bioalcohols are generally recognized as one of very useful alterna…
View article: Gasoline particle filter reduces oxidative DNA damage in bronchial epithelial cells after whole gasoline exhaust exposure in vitro
Gasoline particle filter reduces oxidative DNA damage in bronchial epithelial cells after whole gasoline exhaust exposure in vitro Open
A substantial amount of traffic-related particle emissions is released by gasoline cars, since most diesel cars are now equipped with particle filters that reduce particle emissions. Little is known about adverse health effects of gasoline…
View article: Assessment of lung cell toxicity of various gasoline engine exhausts using a versatile in vitro exposure system
Assessment of lung cell toxicity of various gasoline engine exhausts using a versatile in vitro exposure system Open
Adverse effect studies of gasoline exhaust are scarce, even though gasoline direct injection (GDI) vehicles can emit a high number of particles. The aim of this study was to conduct an in vitro hazard assessment of different GDI exhausts u…
View article: Gas phase composition and secondary organic aerosol formation from gasoline direct injection vehicles investigated in batch and flow reactors: effects of prototype gasoline particle filters
Gas phase composition and secondary organic aerosol formation from gasoline direct injection vehicles investigated in batch and flow reactors: effects of prototype gasoline particle filters Open
Gasoline direct injection (GDI) vehicles have recently been identified as a significant source of carbonaceous aerosol, of both primary and secondary origin. Here we investigated primary emissions and secondary organic aerosol (SOA) format…
View article: Nanoparticle emissions from gasoline vehicles DI & MPI
Nanoparticle emissions from gasoline vehicles DI & MPI Open
The nanoparticles (NP) count concentrations are limited in EU for all Diesel passenger cars since 2013 and for gasoline cars with direct injection (GDI) since 2014. For the particle number (PN) of MPI gasoline cars there are still no legal…
View article: Nanoparticle Emissions of DI Gasoline Cars with/without GPF
Nanoparticle Emissions of DI Gasoline Cars with/without GPF Open
In the present paper some results of investigations of nanoparticles from five DI gasoline cars are represented. The measurements were performed at vehicle tailpipe and in CVS-tunnel. Moreover, five variants of “vehicle - GPF” were investi…
View article: Hazard identification of exhausts from gasoline-ethanol fuel blends using a multi-cellular human lung model
Hazard identification of exhausts from gasoline-ethanol fuel blends using a multi-cellular human lung model Open
Ethanol can be produced from biomass and as such is renewable, unlike petroleum-based fuel. Almost all gasoline cars can drive with fuel containing 10% ethanol (E10), flex-fuel cars can even use 85% ethanol (E85). Brazil and the USA alread…
View article: Testing emissions of passenger cars in laboratory and on-road (PEMS, RDE)
Testing emissions of passenger cars in laboratory and on-road (PEMS, RDE) Open
In the present paper, the results and experiences of testing different PEMS on the chassis dynamometer and on-road are presented. In the first part of work the measuring systems were installed on the same vehicle (Seat Leon 1.4 TSI ST) and…
View article: Investigations of emissions of reactive substances NO<sub>2</sub> and NH<sub>3</sub> from passenger cars
Investigations of emissions of reactive substances NO<sub>2</sub> and NH<sub>3</sub> from passenger cars Open
Public concern and complaints regarding ambient air in zones of dense traffic pertains to two compounds of nitrogen, nitrogen dioxide (NO2) and ammonia (NH3); both are toxic and strongly irritant, such that legal limitations are under disc…
View article: Biological Effects in Lung Cells In Vitro of Exhaust Aerosols from a Gasoline Passenger Car With and Without Particle Filter
Biological Effects in Lung Cells In Vitro of Exhaust Aerosols from a Gasoline Passenger Car With and Without Particle Filter Open
Exhaust aerosol from gasoline passenger cars is a complex mixture of a particulate fraction as well as volatile compounds. In contrary to the observed adverse effects of diesel exhaust particles the gasoline exhaust has, however, received …