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本文调查了我省某矿务局６８名镉作业工人尿蛋白、尿β_２－ＭＧ、尿镉、血镉水平的变化。结果发现，尿镉与肾损害并无关系；血镉与尿蛋白、尿β_２－ＭＧ相关。通过时血镉与尿蛋白、尿β_２－ＭＧ的回归分析，我们认为引起镉作业工人轻度肾损伤的血镉临界值为５．４３μｇ／Ｌ，当血镉浓度大于１６．９μｇ／Ｌ时，可能产生比较严重的肾损伤。
This paper investigated the urinary protein, urinary β_2-MG, urinary cadmium, blood cadmium levels in 68 cadmium workers in a mining bureau in our province. The results showed that urine cadmium and kidney damage has nothing to do; blood cadmium and urinary protein, urinary β 2-MG related. Through the regression analysis of blood cadmium, urinary protein and urinary β_2-MG, we found that the cut-off value of blood cadmium of cadmium-exposed workers with mild renal injury was 5.43 μg / L. When the blood cadmium concentration was more than 16.9 μg / L, May have a more serious kidney injury.