J. Phys. IV France 107 (2003) 1209
Simulation of the fate and transport of mercury in North AmericaC. Seigneur1, K. Vijayaraghavan1, K. Lohman1, P. Karamchandani1, C. Scott1 and L. Levin2
1 Atmospheric & Environmental Research Inc., 2682 Bishop Drive, Suite 120, San Ramon, CA 94583, U.S.A.
2 EPRI, 3412 Hillview Avenue, Palo Alto, CA 94304, U.S.A.
A multiscale modeling system that includes a global model and a nested continental model is applied to simulate the global cycling of atmospheric mercury and its fate and transport over North America. The models show satisfactory performance with a coefficient of determination of 0.81 for mercury wet deposition over North America. The models are used to estimate source attribution of mercury deposition in the United States. On average, 73% of mercury deposited in the contiguous United States is calculated to originate from the global background.
© EDP Sciences 2003