中文摘要：

目的了解广西环境镉污染重点地区人群尿镉水平。方法于2014—2015年，在广西3个重金属污染重点防控区选择污染较严重的4个行政村作为污染区，同时选择3个行政村作为对照区，采集18-75岁常住居民尿液，采用电感耦合等离子体质谱仪（ICP—MS）测定尿镉水平。结果共检测1709人，其中，污染区1129人的尿镉水平为0．04～45．41μg/g cr,平均值为4．58μg／g cr，中位数为3．46μg／g cr，合格率为97.3％；对照区580人的尿镉水平为0．11～14．21μg／g cr，平均值为3．19μg／g cr，中位数为2．77μg/g cr，合格率为100．0％，污染区人群尿镉负荷水平显著高于对照区（P〈0．01）。不同性别比较，在相同研究区域，女性尿镉水平高于男性；在不同研究区域，污染区女性尿镉水平高于对照区（P〈0．01），男性则区域间差异无统计学意义（P〉0．05）。呈现随着年龄增长，调查对象尿镉水平逐步增加的趋势。结论广西环境镉污染区人群镉负荷处于相对低健康危害风险的状态，环境镉污染对人群健康依然存在潜在影响。

英文摘要：

Objective To explore urinary cadmium levels of populations living in cadmium-polluted areas in Guangxi.Methods In 2014-2015,four villages in three areas with heavy metal pollution were selected as study group,and three comparable villages were selected as the control group. In both polluted areas and non-polluted areas, urinary cadmium levels of residents 18-75 years old were measured by ICP-MS. Results A total of 1 709 residents participated in the study and their urinary samples were determined for cadmium. Urinary cadmium levels of the 1 129 peoples in the polluted areas ranged between 0.04-45.41 μg/g cr with a mean of 4.58 μg/g cr,and a median of 3.46 μg/g cr. The qualified rate of urinary cadmium samples in observed group was 97.3%. Urinary cadmium levels of the 580 residents in the control group ranged between 0.11-14.21 μg/g cr with a mean of 3.19 μg/g cr,and a median of 2.77 μg/g cr. The qualified rate of urinary cadmium samples in control group was 100%. Residents in the polluted areas had significantly higher urinary cadmium levels compared with those in the control areas（P〈 0.01）. In the polluted areas,women had higher urine cadmium levels than men. Compared with their peers in the control areas,women in the polluted area had higher urinary cadmium levels（P〈 0.01）,while men did not have significant higher urinary cadmium levels（P〈 0.05）. Urine cadmium levels increased with age for all participants in both polluted and non-polluted areas. Conclusion Residents in areas with heavy metal pollution have significantly higher level of urinary cadmium levels compared with those in non-polluted areas in Guangxi.