| I read before (this study) that mercury accumulates at the poles more than anywhere else. Context was affect on wildlife there, some birds turning gay [0][1] (that effect is location independent, but I read it first in a northern location context). A possible reason for it to "go north" is mentioned here: [2]. > Environmental scientists at Harvard have discovered that the Arctic accumulation of mercury ... is caused by both atmospheric forces and the flow of circumpolar rivers that carry the element north into the Arctic Ocean. [1] also is a pretty good article on the effects of mercury on wildlife. There also is mentioning of possible pathways to the north here: [3] - unlike [2] they claim it's mostly through the atmosphere though. > From our observation site north of Alaska’s Brooks Range, we determined that gaseous elemental mercury in the atmosphere is the dominant source of Arctic mercury. We calculated that it accounted for 70 percent of the mercury that finds its way into tundra soil. [0] https://news.nationalgeographic.com/news/2010/12/101203-homo... [1] http://e360.yale.edu/features/mercurys_silent_toll_on_the_wo... [2] https://www.hsph.harvard.edu/news/press-releases/arctic-rive... [3] https://www.scientificamerican.com/article/mercury-from-indu... |