%0 conference lecture %@ %A Ebinghaus, R.,Jennings, G.,Kock, H.H.,Derwent, R.,Manning, A.,Spain, G. %D 2011 %J 11th International Conference on Biogeochemistry of Trace Elements, ICOBTE 2011 %N %P %T Decreasing trends in total gaseous mercury observations in baseline air at Mace Head, Ireland from 1996 to 2009 %U %X