Think the federal government safeguards you from cancer contracted on the job? OSHA’s own analyses of 16 chemicals estimate that cancer risks to workers associated with legal exposures over an entire career are as high as six in 10. (Silica, specifically the limit set for construction workers, is the worst.) A former OSHA official and the Center for Public Integrity analyzed an additional 31 of the agency’s exposure limits and found cancer risks above 1 in 10 for half of the chemicals. Image from the Noun Project/Yazmin Alanis.