Seasonal Behavior of Atmospheric Mercury Species in Polar Regions

摘要

Atmospheric Mercury Depletion Events (AMDEs) during polar springtime have been experimentally observed in the Arctic and in the Antarctic. During these events Hg(0) and ozone concentrations are significantly depleted and well correlated, whereas concentrations of ionic mercury species (RGM) simultaneously increase. During Antarctic summer however, we frequently observed decreasing Hg(0) concentrations along with simultaneous increases in RGM as well as ozone levels.