Modeling atmospheric POP dynamics in urban systems

ENVR 16

Lisa A. Totten, totten@envsci.rutgers.edu, Georgiy Stenchikov, and Songyan Du, sdu@envsci.rutgers.edu. Department of Environmental Sciences, Rutgers University, 14 College Farm Rd., New Brunswick, NJ 08901
Data from several monitoring networks demonstrate that atmospheric POP concentrations are dramatically elevated in urban areas compared to rural or background regions, such that these urban emissions of POPs support the regional and global transport and deposition of POPs to more remote areas. In this study, the Regional Atmospheric Model System (RAMS) coupled with the Hybrid Particle and Concentration Transport model (HYPACT) was used to estimate the source strength necessary to support concentrations of PCBs observed in Bayonne, NJ, USA. In addition, passive and active air monitoring data from Philadelphia, PA, USA was used to estimate the total emissions of POPs from this fifth-largest U.S. city.