%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 %T Decreasing trends in total gaseous mercury observations in baseline air at Mace Head, Ireland from 1996 to 2009 %U %X