麻豆传媒

Attachment 2: The comparison of total PM emissions emitted from internal combustion engine and electric vehicles (Image) The measurement of PM emissions of internal combustion engine and electric vehicles with 90% of regenerative braking intensity, the PM10 emissions of gasoline vehicle, diesel vehicle, and electric vehicle were 42.3 mg/km, 43.2 mg/km, and 47.7 mg/km, respectively. PM2.5 emissions were 14.5 mg/km for gasoline vehicle, 14.1 mg/km for diesel vehicle, and 13.9 mg/km for electric vehicle. Under the 50% of regenerative braking intensity, electric vehicle has emitted up to 15% more PM10 emissions compared to the internal combustion engine vehicles. However, the study estimates that PM10 and PM2.5 emissions of an electric vehicles are reduced by 15% and 50%, respectively, compared to the internal combustion engine vehicles, when we consider the secondary PM emission from engine combustion. As mentioned above, the current exhaust system in internal combustion engine vehicles has emitted significantly lower PM emissions with the help of modern technological advancements in engine combustion and after-treatment devices. The study found that more than 90% of PM emissions from internal combustion engine vehicles were originated from non-exhaust sources.

Attachment 3: The brake wear simulator, tire wear simulator, and a mobile road dust measurement vehicle used to measure non-exhaust emissions (Photo) For this research, the current technological instruments are applied to accurately measure non-exhaust emissions according to vehicle type. Tire wear simulator, brake wear simulator, and mobile road dust measurement vehicle were utilized to measure the PM emissions from tire wear, brake wear and resuspension of road dust.