PAREMPI first light-duty emissions test campaign

The first PAREMPI measurement campaign focusing on emissions from light-duty vehicles took place in October 2023 at BOSMAL in Poland. The main campaign lasted 31 days and included 33 participants from 5 partner organisations. Valuable emission data were generated through extensive measurements. 

In the chassis dynamometer facilities, seven different hybrid, diesel, gasoline and compressed natural gas (CNG) cars with different brands, ages and mileages were studied. Most of the cars met Euro 6d standard and had relatively low mileage; however, non-gasoline particulate filters (GPF) and non-diesel particulate filter (DPF) cars were also measured. The results obtained in the laboratory with a test cycle simulating Real Driving Emissions (RDE) are compared with those from on-road measurements with the Portable Emissions Measurement System (PEMS).

The four-week campaign on the chassis dynamometer in the laboratory was carried out in different ambient temperatures, reaching as low as -9 °C. A comprehensive measurement setup covered gaseous emissions (e.g. formaldehyde, aromatics), semi-volatiles, particle mass and number emissions down to <10nm. Secondary aerosol formation was characterized using oxidation flow reactors (OFRs), and the composition of aerosols was measured online with instruments such as e.g. the Soot Particle Aerosol Mass Spectrometer (SP-AMS). The toxicity of the exhaust was also studied.

Analyses of the data are ongoing and planning for the next campaign has already commenced. The next campaign is planned for the heavy-duty vehicles in winter conditions during spring 2024 in Finland.

The videos of the campaign will be available soon. Keep an eye on our website and social media.

The team ready for measurements of car emissions
Instruments for measuring particles and for studying secondary aerosol formation, among other characteristics of car exhaust
Details of daily program adjusted
parempi car edit
One of the seven test vehicles in the test cell
Partners from different organisations discuss the measurements
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