Abstract
In this research, we investigate the minor chemical elements contained in the diesel particulate matter (DPM) exhaust emissions, generated by in-use diesel engine passenger vehicles. For this purpose, we apply a high-resolution optical emission spectroscopy technique, for precise spectrochemical analysis of diesel particulate matter. By means of laser-induced breakdown spectroscopy (LIBS) analytical method, we qualitatively and quantitatively characterise detected minor chemical elements in DPM. Particulate matter samples were obtained from in-use diesel engine passenger vehicles of diverse types and models from major brand car producers in Europe. We analysed particulate matter, extracted from the exhaust manifold part, from vehicles, which are used in daily life environment. The LIBS technique has revealed the presence of minor chemical elements in DPM -silicon, nickel, titan, potassium, strontium, and molybdenum with diverse concentrations.
Highlights
Diesel engine emissions and Diesel vehicles emission monitoring [1,2] are important topics nowadays
In this research we investigate the minor chemical elements contained in the Diesel particulate matter (DPM) exhaust emissions, generated by in - use Diesel engine passenger vehicles
In Laser Induced Breakdown Spectroscopy signal recorded from different Diesel Particulate Matter samples are dominating spectral lines from Carbon, Iron, Magnesium, Aluminium, Chromium, Zinc, Sodium and Calcium
Summary
Diesel engine emissions and Diesel vehicles emission monitoring [1,2] are important topics nowadays. This is because its real state reflects on current quality of air flow in the cities, city-suburbs, industrial or rural areas. PM and metallic nanoparticles are the key sources of many diseases and illnesses or deaths. It should be among our highest priorities to rigorously explore and understand the chemical composition of particulate matter. The knowledge of this information can help to find new techniques to precisely measure and quantify the content of different chemical elements adsorbed inside the small PM and minimise the vehicle's emissions
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