Considerations on pollution from the use of biofuels

While, for thousands of years, natural pollution has reversible effects on environment, thanks to biological and biochemical cycles, the artificial pollution produced by industrial activities disturbs natural cycles and in most cases has irreversible consequences. Among the most polluting vehicles made by humans, we find the vehicles equipped with internal combustion engines. In the past decades, global automotive vehicles manufacturing has reached a high level thanks to his positive impact on people mobility. Therefore, reducing exhaust gas emissions from internal combustion engines represent a research topic for specialists around the world. The use of biofuels is a promising research direction. The EU authorities has issued different sets of standards for the harmful emissions that affect the quality of the environment. In this paper we present the results obtained in the laboratory using different biodiesel concentrations at different load and speed regimes.