Harvard study finds circumpolar rivers most responsible for high levels of mercury in the Arctic
Boston, MA–(ENEWSPF)–May 22, 2012. Environmental scientists at Harvard have discovered that the Arctic accumulation of mercury, a toxic element, is caused by both atmospheric forces and the flow of circumpolar rivers that carry the element north into the Arctic Ocean.
While the atmospheric source was previously recognized, it now appears that twice as much mercury actually comes from the rivers.
