Measuring gas phase mercury emissions from industrial effluents

摘要: A number of hazardous and toxic gaseous species are emitted into the atmosphere from a large variety industrial-scale processes. Of trace metal that have been identified in industrial emissions, mercury its compounds (expressed as or Hg) received most attention because perceived health environmental risks associated with release atmosphere. Hg sources is therefore now recognized major concern by governments bodies worldwide. Anthropogenic emissions resulted global atmospheric deposition rates ?3 times higher than preindustrial times, increases 2 to 10 around industrialized regions (Hylander Meili, 2003). The United States Environmental Protection Agency (US-EPA), Mercury Study Report Congress (US-EPA, 1997) 1997, reported amount released human activities 1995 was between 50% 75% total yearly (including natural, anthropogenic, oceanic emissions) 5500 Mg. common estimates for anthropogenic range 2000 2900 Mg/year.