Size-resolved motor vehicle particulate matter emissions were characterized for light-duty gasoline-powered vehicles and heavy-duty diesel vehicles, and near a busy freeway. These profiles of carbonaceous, water-soluble ion, and elemental components were compared between chassis dynamometer studies and the freeway environment; their elemental composition was also compared to data obtained from trace metal analyses of fuel and motor oil sampled from test vehicles. The majority of motor vehicle particulate matter was carbonaceous and its size and composition distributions were impacted by emissions reduction technology, maintenance history, and driving cycle/conditions. Elements measured in stock fuel and motor oil samples, such as motor oil additives, were also measured in the motor vehicle particulate matter emissions and in the roadside environment. These analyses are important because motor vehicle PM emissions can play an integral role in affecting human health as well as negatively impact the natural environment. Cumulatively, these results present a life-cycle analysis perspective of motor vehicle particulate matter formation, emission, and exposure potential. This information provides scientists and regulators with a starting point from which they can determine how to best protect the public from particulate air pollution.Table 2-2 presents details on each of these driving cycles, and their individual driving traces are provided in Figure 2-6. ... 1994 Honda Acura 104, 441 4 cylinder SFI TWC PC 1998 Ford Mustang 10, 697 6 cylinder SFI TWCPC 1999 Cadillacanbsp;...
|Title||:||Size and Composition Quantification of Particulate Matter Emissions from Motor Vehicles|
|Author||:||Michael Arthur Robert|
|Publisher||:||ProQuest - 2008|