Assessment of air quality has been traditionally conducted by ground based monitoring, and
more recently by manned aircrafts and satellites. However, performing fast, comprehensive …

Particulate Matter (PM) emissions from gasoline direct injection (GDI) engines, particularly
Particle Number (PN) emissions, have been studied intensively in both academia and …

Africa is blessed with natural and mineral resources, but exploitation of these resources has
led to extreme pollution of the environment. Population growth and urbanization due to …

Airborne particulate matter poses a serious threat to human health. Exposure to nanosized
(< 0.1 μm), vehicle-derived particulates may be hazardous due to their bioreactivity, their …

Urban road transport is an important source of local pollution and carbon emissions.
Designing effective and fair policies tackling these externalities requires understanding who …

Recent increases in the Corporate Average Fuel Economy standards have led to
widespread adoption of vehicles equipped with gasoline direct-injection (GDI) engines …

Spark ignition gasoline vehicles comprise most light duty vehicles worldwide. These
vehicles were not historically associated with PM emissions. This changed about 15 years …

Particles endanger the ecosystem and human health in a significant way. Currently, under
strict emission regulations, optimizing fuel and combustion systems is no longer enough …

The particulate matter (PM) emissions of gasoline vehicles were much lower than those of
diesel vehicles until the introduction of diesel particulate filters (DPFs) in the early 2000s. At …

Atmospheric nanoparticles can be formed either via nucleation in atmosphere or be directly
emitted to the atmosphere. In urban areas, several combustion sources (engines, biomass …