Research Initiative

Downtown Los Angeles, December 2009

Air pollution has been an issue. Ever since the industrial revolution, this issue has become a significant factor that aggravates the environment and the quality of our life in an exponential rate. In metropolitan cities, vehicle emissions, industrial activities and other anthropogenic sources all contribute to the deteriorating air quality. In developing countries, the keen desire for prosperity meets the weighty challenge of environmental pollution from increasing number of vehicles, coal and biomass burning etc. All of those are the makers of the "blanket" of pollutants covering the cities where we live and floating in the air that we breathe everyday.

Though the role of air pollutants, with a focus of airborne particulate matters, in worsening environment and threatening public health seems evident, the current understanding of their formation and evolution, their mechanistic cause of adverse health effect and their cost-effective control technologies are still inadequate and incomplete. This is where the air pollution research kicks in to bridge the gap between the actuality and the ideality to protect our environment and public health.

Research Interest

Fate of air pollutants from their source to their exposure

Airborne particulate matters (PM) are constituted of a complex mixture of various chemical compositions with size ranging from a few nanometer to tens of micrometer. Their physical and chemical properties are important matrix in their toxicity to human health. My research interests, currently in University of Southern California under the lead of Dr. Constantinos Sioutas, include the following aspects in the different phases of PM fate from their source to their exposure:

My other research interests also include the development of instrumentation for PM measurement and the modeling of PM behavior in the atmosphere.