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目的:了解麻城汽门厂镀铬车间工人体内铬负荷水平。方法:选择镀铬车间工人125人次为职业暴露组,健康人群60人次为对照组,进行流行病学调查,并分别采集晨尿尿样,采用石墨炉原子吸收光谱法测定尿铬浓度。结果:职业暴露组晨尿尿铬浓度明显高于对照组,差异有统计学意义(P<0.05)。结论:职业暴露组尿铬浓度水平较高,应密切关注是否会引起职业健康危害;对尿铬浓度值超过25μg/g肌酐的工人建议工厂进行预防性调离,更换工种。
OBJECTIVE: To understand the level of chromium load in the chrome workshop workers in Macheng Steam Plant. Methods: A total of 125 workers in the chrome shop were selected as the occupational exposure group and 60 healthy people as the control group. The epidemiological investigation was conducted. Morning urine samples were collected and the urinary chromium concentrations were determined by graphite furnace atomic absorption spectrometry. Results: The urinary chromium concentration in morning urine of occupational exposure group was significantly higher than that of the control group, the difference was statistically significant (P <0.05). CONCLUSIONS: The level of urinary chromium in the occupational exposure group is high. Careful attention should be given to whether occupational health hazards may be caused. For workers with a urinary chromium concentration of more than 25 μg / g creatinine, the factory recommends that the plant be used for preventive transfer and replacement of work types.