For the NIH-funded Black Women’s Health Study, my group is estimating exposures to traffic-related air and noise pollution. Previously, the traffic noise modeling was described here.
I now have preliminary results for NOx (NO and NO2) traffic air pollution dispersion model. The model uses the best available roadway geometries, and traffic data, and emissions modeling to derive estimates of exposures. Moreover, the exposure assessment methodology can be run anywhere in the U.S. The figure shown is a coarse resolution example of the model applied to 5 boroughs of New York City. But, the model is being run to estimate NOx concentrations at the exact residential address of each person in the Black Women’s Health Study.
Currently the model makes use of parallel computing on a high performance cluster so that hundreds of thousands of exposures can be estimated in reasonable amounts of time.
For another application of our traffic air pollutant model see this, as well as recent the publication in Circulation, and conference proceeding from the 2013 Air & Waste Management Association 106th Annual Conference.