1991) (inhalation exposure to methylisocyanate), and Farland & Dourson (1992) (oral exposure to arsenic). Data on toxicity are ...

Control of the confounding effect of co-exposure to other metals, particularly arsenic and nickel, was limited; however, the ... Confounding by concomitant exposure to other cancer determinants, including arsenic, was not controlled for. Excess mortality ... of exposure to arsenic indicated that the increase in lung cancer risk was unlikely to be explained by exposure to arsenic. 5.3 ... when little arsenic was present in feedstock. Excess mortality from prostatic cancer was found initially, but the relative risk ...