Magnification of atmospheric mercury deposition to polar regions in springtime: the link to tropospheric ozone depletion chemistry

Details Magnification of atmospheric mercury deposition to polar regions in springtime: the link to tropospheric ozone depletion chemistry Magnification of atmospheric mercury deposition to polar regions in springtime: the link to tropospheric ozone depletion chemistry

Sep 2001

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2001georl..28.3219l&link_type=abstract

Geophysical Research Letters, Volume 28, Issue 17, p. 3219-3222

Physics

43

Atmospheric Composition And Structure: Biosphere/Atmosphere Interactions, Atmospheric Composition And Structure: Troposphere-Constituent Transport And Chemistry, Meteorology And Atmospheric Dynamics: Boundary Layer Processes

Scientific paper

Mercury-in the chemical/physical forms present in the biosphere-is a persistent, toxic, bioaccumulative pollutant that is dispersed throughout the environment on a global scale, mainly via the atmosphere. It is among the ``heavy metals'' for which the natural biogeochemical cycle has been perturbed by a wide range of human activities, including fossil-fuel combustion and waste incineration. Results of our recent measurements of gaseous elemental mercury (GEM), as well as total particulate-phase mercury (TPM) concentrations in Arctic air, `total Hg' concentrations in Arctic snow, and tropospheric BrO concentrations from an earth-orbiting-satellite platform are presented and discussed. Findings of our research, and the conclusions derived therefrom, are important for environmental protection as well as the health and well-being of aboriginal people in Arctic circumpolar nations.

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