An epidemiological study on lung cancer among chromium plating workers.

High risk of lung cancer among chromate workers have been reported by many investigators, but it has been limited to the refining process. A recent report demonstrated that there was a significantly high number of deaths from cancer among chromium platers. In this report, a cohort study was carried out on platers in Tokyo. Among 952 chromium platers who were followed up from April 1, 1970 to September 30, 1976, 21 deaths were observed, but there was no case of lung cancer. In spite of the small size of the population investigated, it was discussed that there was not so much risk of cancer, particularly lung cancer, among chromium platers.