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
• Format: Article in Journal/Newspaper
• Language: unknown
• Published: 2015
• Subjects: alkylation; aquatic ecosystems; carbon; ecology; ecosystems; nutrients; organic carbon; permafrost; ponds; thawing; water; Arctic; Bylot Island; Kuujjuarapik; Whapmagoostui; Ice; Subarctic; taiga; Tundra; wedge*
• Online Access: https://espace.inrs.ca/id/eprint/3879/; 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 multi-...