Climate Change Impacts on Environmental and Human Exposure to Mercury in the Arctic

• Published in: International Journal of Environmental Research and Public Health
• Main Authors: Kyrre Sundseth, Jozef M. Pacyna, Anna Banel, Elisabeth G. Pacyna, Arja Rautio
• Format: Article in Journal/Newspaper
• Language: English
• Published: MDPI AG 2015
• Subjects: mercury; climate change; Arctic; Europe; policymaking; exposure; health; Medicine; R; Climate change; Human health
• Online Access: https://doi.org/10.3390/ijerph120403579; https://doaj.org/article/f8f0ed67e458443c9c89761b86872ea8

This paper reviews information from the literature and the EU ArcRisk project to assess whether climate change results in an increase or decrease in exposure to mercury (Hg) in the Arctic, and if this in turn will impact the risks related to its harmful effects. It presents the state-of-the art of knowledge on atmospheric mercury emissions from anthropogenic sources worldwide, the long-range transport to the Arctic, and it discusses the likely environmental fate and exposure effects on population groups in the Arctic under climate change conditions. The paper also includes information about the likely synergy effects (co-benefits) current and new climate change polices and mitigation options might have on mercury emissions reductions in the future. The review concludes that reductions of mercury emission from anthropogenic sources worldwide would need to be introduced as soon as possible in order to assure lowering the adverse impact of climate change on human health. Scientific information currently available, however, is not in the position to clearly answer whether climate change will increase or decrease the risk of exposure to mercury in the Arctic. New research should therefore be undertaken to model the relationships between climate change and mercury exposure.