High methylmercury in Arctic and subarctic ponds is related to nutrient levels in the warming eastern Canadian Arctic

• Published in: Environmental Science & Technology
• Main Authors: MacMillan, Gwyneth A., Girard, Catherine, Chételat, John, Laurion, Isabelle, Amyot, Marc
• Other Authors: Université de Montréal. Faculté des arts et des sciences. Département de sciences biologiques
• Format: Article in Journal/Newspaper
• Language: English
• Published: 2015
• Subjects: Mercury; Methylmercury; Thaw Pond; Arctic; Subarctic; Lake; Bylot Island; Kuujjuarapik; Whapmagoostui; Ice; permafrost; taiga; Tundra; wedge*
• Online Access: http://hdl.handle.net/1866/19008; https://doi.org/10.1021/acs.est.5b00763

Permafrost thaw ponds are ubiquitous in the eastern Canadian Arctic, yet little information exists on their potential as sources of methylmercury (MeHg) to freshwaters. They are microbially active and conducive to methylation of inorganic mercury, and are also affected by Arctic warming. This multiy...