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当环境中铅镉浓度相对稳定时,长期生活在该环境中正常人群体内,铅、镉浓度与环境中铅、镉浓度趋于平衡状态,此时人体血中铅和镉含量,能够反映近期环境中,铅和镉污染状况及水平。为了调查正常居民血中铅、镉水平及饮酒、吸烟对血铅血镉浓度的影响,我们于1988年在银川市选择了没有对铅、镉职业性接触的中学教师进行了血中铅和镉水平抽样调查和分析。
When the concentration of lead and cadmium in the environment is relatively stable, long-term living in the normal population of the environment, lead and cadmium concentrations and the environment lead and cadmium concentrations tend to balance the body of lead and cadmium at this time can reflect the recent environment Medium, lead and cadmium pollution status and level. In order to investigate the impact of lead, cadmium levels and drinking and smoking of normal residents on blood lead and cadmium levels, we selected secondary school teachers who did not have lead and cadmium occupational exposure to lead and cadmium in the blood in Yinchuan City in 1988 Horizontal sampling survey and analysis.