Spatial and seasonal patterns in urban influence on regional concentrations of speciated aerosols across the United States

Hand, J. L., Schichtel, B. A., Malm, W. C., Spatial and seasonal patterns in urban influence on regional concentrations of speciated aerosols across the United States, J. Geophys. Res.: Atmos., 119 (22), 12832-12839, 10.1002/2014JD022328