Mercury from outside the Arctic is polluting the region 10 May 2021MonitoringPollutantsRecommendationsArctic Contaminants Action ProgramArctic Monitoring and Assessment ProgrammePathways A look at current trends, concerns and future action AMAP Working Group lays a scientific foundation while ACAP WG implements projects to stimulate actions to reduce emissions. This is how they work together to inspire change. Mercury has long been identified as a toxic contaminant that can have serious health implications globally, causing increasing concern within the Arctic. Mercury is released as a result of human activities such as the combustion of fossil fuels, mining and metal production, cement manufacturing and waste incineration in addition to natural sources like volcanos. Most of these mercury-emitting activities occur outside the Arctic – so why is the region impacted by mercury pollution?Most mercury pollution is brought to the Arctic via long-range transport from lower latitudes by air and ocean pathways. This underscores the importance of pollution sources in southern regions joining efforts to reduce emissions. Once emitted, mercury is cycled and recycled in the environment, taking different chemical forms along the way.