'There has been no study [on arsenic exposure] done on this scale anywhere in Canada before,' said project manager Renata Rosol. The federal government will freeze more than 200,000 tonnes of arsenic trioxide beneath the Giant Mine site. Lorie Crawford, with a research assistant, is donating her toenail clippings, saliva and urine for the study. (Kate Kyle/CBC)A resident of Yellowknife for 30 years, Crawford witnessed Giant Mine's shutdown. As a teenager, her school bus drove through the Giant Mine site to Yellowknife every day.

Source: CBC News November 07, 2017 11:59 UTC