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Exposure to inorganic mercury in mines and mills does not seem strongly associated with cancer risk, with the possible exception of liver cancer; the increase in lung cancer may be explained by co-exposure to crystalline silica and radon.

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Abstract. In the Idnja Mine ore appears in two forms, the ftrst as cinnabar (70%) and the second as natwe mercury (30%). In the area where native mercury, was mined the concentrations of elemental mercur 5, in the working and unventilated areas of the pit were verb' high, they periodically reached over and above 3 mg/m ~ of air and most of the