Mercury in Air - Passive Sampling Applications
In collaboration with Professor Frank Wania's research group, we have invented a new, precise and accurate passive sampler for measuring gaseous mercury in air. With new funding from Environment and Climate Change Canada, we are now investigating the feasibility of a number of applications for the sampler, such as surface-atmosphere flux estimates. 
The group has published a number of recent papers to establish the precision and accuracy of the passive air sampler and to demonstrate a few possible applications. Below are some selected publications on the topic:
Naccarato, A.; Tassone, A.; Martino, M.; Moretti, S.; Macagnano, A.; Zampetti, E.; Papa, P.; Avossa, J.; Pirrone, N.; Nerentorp, M.; Munthe, J.; Wängberg, I.; Stupple, G.; Mitchell, C.P.J.; Martin, A.; Steffen, A.; Babi, D.; Prestbo, E.; Sprovieri, F.; Wania, F. (2021) A field intercomparison of three passive air samplers for gaseous mercury in ambient air. Atmospheric Measurement Techniques, 14, 3657-3672.
Quant, I.M.; Feigis, M.; Mistry, S.; Lei, Y.D.; Mitchell, C.P.J.; Staebler, R.; Di Guardo, A.; Terzaghi, E.; Wania, F. (2021) Using passive air samplers to quantify vertical gaseous elemental mercury concentration gradients within a forest and above soil. Journal of Geophysical Research – Atmospheres, 126(15), e2021JD034981.
Snow, M.A.; Feigis, M.; Lei, Y.D.; Mitchell, C.P.J.; Wania, F. (2021) Development, characterization and testing of a personal passive sampler for measuring inhalation exposure to gaseous elemental mercury. Environmental International, 146, 106264.
McLagan, D.S.; Monaci, F.; Huang, H.; Lei, Y.D.; Mitchell, C.P.J.; Wania, F. (2019) Characterization and quantification of atmospheric mercury sources using passive air samplers. Journal of Geophysical Research – Atmospheres, 124(4), 2351-2362.
McLagan, D.S.; Hussein, B.A.; Huang, H.; Lei, Y.D.; Wania, F.; Mitchell, C.P.J. (2018) Identifying and evaluating urban mercury emission sources through passive sampler-based mapping of atmospheric concentrations. Environmental Research Letters, 13(7), 074008.
McLagan, D.S.; Mitchell, C.P.J.; Steffen, A.; Hung, H.; Shin, C.; Stupple, G.W.; Olson, M.L.; Luke, W.T.; Kelley, P.; Howard, D.; Edwards, G.C.; Nelson, P.F.; Xiao, H.; Sheu, G.-R.; Dreyer, A.; Huang, H.; Hussain, B.A.; Lei, Y.D.; Wania, F. (2018) Global evaluation and calibration of a passive air sampler for gaseous mercury. Atmospheric Chemistry and Physics, 18, 5905-5919.
McLagan, D.S.; Mitchell, C.P.J.; Huang, H.; Lei, Y.D.; Cole, A.S.; Steffen, A.; Hung, H.; Wania, F. (2016) A high precision passive air sampler for gaseous mercury.  Environmental Science & Technology Letters, 3, 24-29.