ABSTRACT

Mercury is emitted into the atmosphere from various anthropogenic and natural sources. Natural sources of mercury include volatilization from soils, vegetation and the ocean. The global marine emissions of vapor-phase mercury are estimated to be about 2,000 ton/year [1]. Nriagu and Pacyna [2] estimated that the global anthropogenic emissions of va­ por-phase mercury produced from human activities are about 1,000-6,000 ton/year, while Porcella [1] reported that about 2,000-3,400 ton/year of mercury emitted from anthropogenic sources accounts for about 30-55% of global atmospheric mercury emis­ sions.