Dust exposure and lung cancer in Quebec chrysotile miners and millers

摘要

A large cohort of men born between 1891 and 1920 and employed for at least a month in the chrysotile producing industry of Quebec has been under study since 1966. These men were followed from first employment(the earliest in 1904)to 1992, by which time over 8000 had died, 657 from lung cancer. The current study is of 488 cases of lung cancer formerly employed at three places, viz. a major complex, here called Company 3, in the region of The ford Mines(243 cases), the mine and mill in the town of Asbestos(206)and a small asbestos-products factory in the same town(39).