In această lucrare, sunt prezentate tendinţele emisiilor de particule pentru o regiune italiană punându-se accent pe sectorul de trafic. Au fost evaluate trei scenarii diferite, presupunând strategii diferite pentru evoluţia flotei de vehicule. Rezultatele demonstrează că strategiile de modernizare a motorului (sustituind vehiculele vechi) ar trebui să fie o prioritate. In acest mod, avantajele ar fi legate de scăderea de precursori de particule secundare (in special datorită introducerii vehiculelor Euro 6). In this paper, particulate emission trends are presented related to an Italian region and focused on the sector of traffic. Three different scenarios were assessed supposing different strategies for the vehicles fleet evolution. Results demonstrate that strategies for engine modernization (old vehicle substitution) should be a priority. To this concern, additional advantages would be related to the decrease of precursors of secondary particulate (in particular thanks to the introduction of Euro 6 vehicles).
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