There is evidence that arsenic is a late-stage human lung carcinogen.Aims
To investigate lung cancer risks in a cohort of cadmium recovery workers in relation to period from ceasing exposure to arsenic.Methods
The mortality experience (1940–2001) of a cohort of 625 male workers from a US cadmium recovery plant was compared with expectations based on US national mortality rates.Results
There was a statistically significant (P < 0.05) negative trend in lung cancer standardized mortality ratios in relation to period from ceasing arsenic exposure.Conclusions
The findings are consistent with the hypothesis that arsenic is a late-stage human carcinogen.