Direct Radiative Effect and Public Health Implications of Aerosol Emissions Associated with Shifting to Gasoline Direct-Injection (GDI) Technologies in Light-duty Vehicles in the United States.

@article{Neyestani2019DirectRE,
  title={Direct Radiative Effect and Public Health Implications of Aerosol Emissions Associated with Shifting to Gasoline Direct-Injection (GDI) Technologies in Light-duty Vehicles in the United States.},
  author={Soroush E. Neyestani and Stacy Walters and Gabriele G. Pfister and Gabriel J. Kooperman and Rawad Saleh},
  journal={Environmental science \& technology},
  year={2019}
}
Due to their enhanced fuel economy, the market share of gasoline direct-injection (GDI) vehicles has increased significantly over the past decade. However, GDI engines emit higher levels of black carbon (BC) aerosols compared to the traditional port-fuel injection (PFI) engines. Here, we performed coupled chemical-transport and radiative-transfer simulations to estimate the aerosol-induced public-health and direct radiative effects of shifting the U.S. fleet from PFI to GDI technology. By… 
Catalytic Materials for Gasoline Particulate Filters Soot Oxidation
The energy efficiency of Gasoline Direct Injection (GDI) engines is leading to a continuous increase in GDI engine vehicle population. Consequently, their particulate matter (soot) emissions are also
Dizel Yakıtlı Taşıtlardan Salınan Partikül Maddelerin Mikroyapı ve Kimyasal Karakterizasyonu
Exhaust emissions from vehicle traffic refer to the particles released into the air due to the combustion of fuels, additives and the erosion of engine parts in the system during vehicle use. The
Microstructural Characterization of Particulate Matter from Gasoline-Fuelled Vehicle Emissions
Exhaust emissions from vehicle traffic refers to the particles released into the air due to combustion of fuels, additives and wear of engine parts in the system during vehicle use. These emissions

References

SHOWING 1-10 OF 33 REFERENCES
Comparison of Gasoline Direct-Injection (GDI) and Port Fuel Injection (PFI) Vehicle Emissions: Emission Certification Standards, Cold-Start, Secondary Organic Aerosol Formation Potential, and Potential Climate Impacts.
TLDR
Switching from PFI to GDI vehicles will likely lead to a reduction in net global warming, and cold-start contributes a larger fraction of the total unified cycle emissions for vehicles meeting more-stringent emission standards.
Comparison of primary aerosol emission and secondary aerosol formation from gasoline direct injection and port fuel injection vehicles
Abstract. Gasoline vehicles significantly contribute to urban particulate matter (PM) pollution. Gasoline direct injection (GDI) engines, known for their higher fuel efficiency than that of port fuel
Assessing the Climate Trade-Offs of Gasoline Direct Injection Engines.
TLDR
It was determined that GDI vehicles are climate beneficial within <1-20 years; longer time horizons were associated with higher BC scenarios and more work is needed to understand BC formation mechanisms in GDI engines to ensure that the climate impacts of this engine technology are minimal.
Black carbon emissions in gasoline exhaust and a reduction alternative with a gasoline particulate filter.
TLDR
The reduction in ambient temperature had significant impacts on BC mass and solid particle number emissions, but larger impacts were observed on the PFI vehicles than the GDI vehicles.
Aerosols from fires: an examination of the effects on ozone photochemistry in the Western United States.
TLDR
Considering the radiative effects of fire aerosols may reduce O(3) overestimation by traditional photochemical models that do not consider fire-induced changes in meteorology; implementation of coupled meteorology-chemistry models are required to simulate the atmospheric chemistry impacted by large-scale fires.
Modeling anthropogenically controlled secondary organic aerosols in a megacity: A simplified framework for global and climate models
Abstract. A simplified parameterization for secondary organic aerosol (SOA) formation in polluted air and biomass burning smoke is tested and optimized in this work, towards the goal of a
...
...