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Desert Research Institute

figure1

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Left: A graph showing the rise and fall of arsenic, antimony, lead, and bismuth levels recorded in Arctic ice cores between 1850 and 2015. The red line shows copper production at the Anaconda Copper Mine. Although declines were delayed by nearly a decade due to lax government regulations, arsenic pollution was greatly reduced by the 1919-1923 phased installation of pollution controls. Right: An atmospheric circulation model demonstrating the spread of Anaconda Mine’s air pollution across North America and potential health implications.

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