The paper reporting the outcomes of the first gaseous elemental mercury eddy covariance flux measurements near Reno/Nevada has finally come out in Environmental Science & Technology:

Pierce A., Moore C., Wohlfahrt G., Hörtnagl L., Kljun N., Obrist D. (2015) Eddy covariance flux measurements of gaseous elemental mercury using cavity ring-down spectroscopy. Environmental Science and Technology, doi: 10.1021/es505080z.