Hayley Hung, Alexandra Steffen, Amanda Cole, Ashu Dastoor, Ed Sverko, Jianmin Ma, John Norman Westgate, Tom Harner, and Yi-Fan Li. Air monitoring of POPs and Hg has taken place at Alert, Nunavut, Canada and Ny Ålesund, Norway since the 1990s under the Northern Contaminants Prog... Scholars Portal Dataverse.