A5013757641- Atmospheric chemistry and aerosols
- Air Quality and Health Impacts
- Vehicle emissions and performance
- Atmospheric aerosols and clouds
- Thermochemical Biomass Conversion Processes
- Natural Fiber Reinforced Composites
- Recycling and utilization of industrial and municipal waste in materials production
- Maritime Transport Emissions and Efficiency
- Air Quality Monitoring and Forecasting
University of California, Riverside
2017-2019
University of Maryland, College Park
2018
Understanding the mixing behavior of anthropogenic primary and biogenic secondary organic aerosol (POA SOA) is important for characterizing their interactions with water vapor. The following work expands upon previous studies investigates cloud condensation nuclei (CCN) activity droplet kinetics α-pinene SOA formed in an environmental chamber mixed diesel or motor oil-diesel fuel POA. changes are similar to previously published but this study provides new CCN information. unmixed systems...
The effects of photochemical aging on exhaust emissions from two light-duty vehicles with gasoline direct injection (GDI) engines equipped and without catalyzed particle filters (GPFs) were investigated using a mobile environmental chamber. Both the GPFs exercised over LA92 drive cycle chassis dynamometer. Diluted entire introduced to chamber subsequently photochemically reacted. It was found that addition will significantly reduce tailpipe particulate also provide benefits in gaseous...
The continuous flow thermal gradient cloud condensation nuclei counter (CCNc) is the instrument currently widely used in exploring interactions of aerosol with water vapor supersaturated regime. In this study we use a CCNc an optical particle (OPC) modified to twice sensitivity default OPC on standard built by DMT, Inc. and OPC-β are explore droplet growth inorganic organic salts effects concentrations final sizes. We also couple higher streamwise (CFSTGC) model estimate mass accommodation...