Development of a biological monitoring for the health care program of workers. With special reference of cadmium contents in saliva and used mouth rinse of cadmium workers.:With Special Reference of Cadmium Contents in Saliva and Used Mouth Rinse of Cadmi

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• This paper reports on the evaluation of cadmium exposure level from Cd contents in mixed saliva and used mouth rinse, by measuring Cd levels in mixed saliva of Cd-workers (Ni-Cd battery factory) and non-exposed persons as controls, in used mouth rinse, in the air of work area, and in blood and urine as a biological index of cadmium. The relationship between cadmium levels in mixed saliva from cadmium workers and those in the air of the work area was statistically significant, and therefore, cadmium levels in mixed saliva were used to monitor the work area and as an index of exposure levels of workers.<BR>It was found that cadmium particles in the air of the work area adhered to floating dust of 1-5 μm. Since dust of that size is likely to stay in the oral cavity, dust-cadmium particles in mixed saliva of workers were removed by centrifuging and cadmium levels in the supernatant fluid of mixed saliva were measured. I believe that cadmium levels in supernatant fluid of mixed saliva were more useful as an index of biological absorption than levels in whole mixed saliva.<BR>In addition, I measured cadmium levels in used mouth rinse from the same cadmium workers. I found that cadmium levels in the used mouth rinse were directly affected by the environmental cadmium levels of the work area and showed a correlation with the cadmium levels in the urine.<BR>Therefore, it was clear that cadmium levels in mixed saliva and in used mouth rinse from cadmium workers could be used to monitor exposure.

• 有限責任中間法人 日本口腔衛生学会の論文

有限責任中間法人 日本口腔衛生学会 | 論文

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