can I sue my employer for creating an unsafe work environment

Question Details: I work for home depot in the tool rental dept. for approx. 3 years ,I have been cleaning sanding machines in an unventilated area, which caused me to develope andeocarcinome cancer. In march of 2009 I had lung surgury to remove most of my lung. since the company has known of this problem with dust for about 5 years Important Notice