Long-term trends and seasonal variations of atmospheric mercury concentrations at Mace Head, Ireland and Zingst, Germany

摘要

Monitoring of total gaseous mercury (TGM) concentrations has been carried out at Mace Head on the west coast of Ireland and at Zingst on the southern shore-line of the Baltic Sea. Between 1998 and 2003 average TGM-concentrations measured at Mace Head and Zingst remained fairly stable. At both stations we measured higher TGM levels during winter months and lower concentrations during summer months. We observed an unexpected west to east gradient seen between Mace Head and Zingst and found that the averaged Mace Head TGM-concentrations are higher than those of Zingst.