title: Modeling the atmospheric transport and deposition of mercury to the Great Lakes.
abstract: A special version of the NOAA HYSPLIT_4 model has been developed and used to estimate the atmospheric fate and transport of mercury in a North American modeling domain. Spatial and chemical interpolation procedures were used to expand the modeling results and provide estimates of the contribution of each source in a 1996 anthropogenic US/Canadian emissions inventory to atmospheric mercury deposition to the Great Lakes. While there are uncertainties in the emissions inventories and ambient data suitable for model evaluation are scarce, model results were found to be reasonably consistent with wet deposition measurements in the Great Lakes region and with independent measurement-based estimates of deposition to Lake Michigan. Sources up to 2000 km from the Great Lakes contributed significant amounts of mercury through atmospheric transport and deposition. While there were significant contributions from incineration and metallurgical sources, coal combustion was generally found to be the largest contributor to atmospheric mercury deposition to the Great Lakes.
authors.affiliation: NOAA Air Resources Laboratory, 1315 East West Highway R/ARL, Room 3316, Silver Spring, MD 20910, USA. mark.cohen@noaa.gov
authors.forename: Mark
authors.initials: M
authors.lastname: Cohen
authors.forename: Richard
authors.initials: R
authors.lastname: Artz
authors.forename: Roland
authors.initials: R
authors.lastname: Draxler
authors.forename: Paul
authors.initials: P
authors.lastname: Miller
authors.forename: Laurier
authors.initials: L
authors.lastname: Poissant
authors.forename: David
authors.initials: D
authors.lastname: Niemi
authors.forename: Dominique
authors.initials: D
authors.lastname: Ratté
authors.forename: Marc
authors.initials: M
authors.lastname: Deslauriers
authors.forename: Roch
authors.initials: R
authors.lastname: Duval
authors.forename: Rachelle
authors.initials: R
authors.lastname: Laurin
authors.forename: Jennifer
authors.initials: J
authors.lastname: Slotnick
authors.forename: Todd
authors.initials: T
authors.lastname: Nettesheim
authors.forename: John
authors.initials: J
authors.lastname: McDonald
mesh_terms: D000392:Air Movements; D003031:Coal; D004785:Environmental Pollutants / Q000032:analysis*; D006114:Great Lakes Region; D017745:Incineration; D008628:Mercury / Q000032:analysis* / Q000737:chemistry; D008669:Metallurgy; D008962:Models, Theoretical
chemical_list: D003031:Coal; D004785:Environmental Pollutants; D008628:Mercury