Airshed Modeling Studies

An important part of atmospheric chemistry and air pollution research is computer kinetics modeling of the physical, chemical, and meteorological processes in air. 

Donald Dabdub’s research has developed a state-of-the-science air quality model that implements the latest findings of the group in order to provide rigorous analysis of the potential impact of the new chemistry in the real atmosphere. 

Shown here are 24-hour averaged concentration levels of particulate matter in the South Coast Air Basin of California.

This series of figures shows the impact on ozone levels due to heterogeneous chlorine chemistry in the South Coast Air Basin of California.  Plotted are ozone differences in parts per billion (ppb) between the air quality model predictions with and without the new chlorine reactions.  It is observed that significant differences of up to 12 ppb are present in coastal regions.