The primary goal of the Florida Atmospheric Mercury Study (FAMS) was to quantify the atmospheric deposition of Hg throughout Florida. Monthly-integrated precipitation and weekly-integrated particulate samples were collected at ten sites in Florida for periods ranging from 2-5 years. The monthly rainfall across the state and the concentrations of Hg in wet-only and bulk depostion increased by a factor of 2-3 during the summertime "wet season" (May-October). These parallell increases in rainfall amount and Hg concentration resulted in 5-8 fold increases in rainfall Hg deposition during the wet season. The annual volume-weighted Hg concentrations ranged from 14+/-2 to 16+/-2 ng/L across southern Florida and the annual Hg rainfall fluxes ranged from 20+/-3 to 23+/-3 micrograms/m^2/yr. The weekly integrated particulate Hg concentrations in southern Florida were low (4.9 to 9.3 pg/m^3) and did not exhibit strong seasonal variability. Condsidering the pronounced seasonal pattern in rainfall Hg deposition, the relatively uniform summertime rainfall Hg concentrations, and the low concentrations of particulate Hg, we conclude that processes other than particulate Hg transport and scavenging govern rainfall Hg deposition in southern Florida. We hypothesize that long range transport of reactive gaseous Hg (RGM) species coupled with strong convective thunderstorm activity during the summertime dominates Hg deposition in southern Florida. Model calculations indicate that local anthropogenic particulate Hg and RGM emissions account for 30-46% of the summertime rainfall Hg depositon across the southern Florida.