Comparison of Manual and Automated Measurements of Reactive Gaseous Mercury (RGM)

摘要

A measurement campaign was undertaken in Ny-Alesund, Spitsbergen (78 deg 55'N, 11 deg 90'E) during April and May 2003. Four mercury depletion events (MDE) were observed during the study. Three research groups measured reactive gaseous mercury (RGM) at three different measurement spots. All groups observed increased concentrations of RGM as concentrations of GEM decreased. Recorded concentrations of RGM ranged from less than 7 to 450 pg/m~3. Differences between both measured parallels and the measurements sites were observed, even though no significant differences in the mean GEM concentrations were revealed between the measurement spots.