Objective: To investigate the upper limit of the normal value of arsenic in healthy adult population in different areas of Guangxi. Methods: From 2015 to 2016, 1533 subjects from 14 counties and cities in Guangxi were collected by age, gender, stratified random sampling and questionnaire survey. 1417 urine samples with satisfactory urine quality and complete information were collected.The content of arsenic in urine was determined by atomic fluorescence spectrometry. Results: The upper limit of normal arsenic in healthy adults in guangxi was 0.053 mg/L. Male urinary arsenicP(50)(0.011mg/L)was higher than that of the female(0.008mg/L), the difference was statistically significant(Z=5.352,P<0.01). Smoking urinary arsenicP(50)(0.012mg/L) was higher than that of nonsmokers(0.009mg/L), the difference was statistically significant(Z=3.404,P<0.01). GroupP(5)0 urine arsenic in coastal areas(0.012mg/L) the crowd was higher than that in non coastal areas(0.009mg/L), the difference was statistically significant(Z=-7.522,P<0.01). Conclusion: The upper limit of normal arsenic in healthy adults in Guangxi area is 0.053mg/L,and there are differences in the levels of arsenic in healthy adults, such as different genders and regions.
目的： 调查广西不同地区无砷接触史的健康成年人尿砷的正常值上限。 方法： 于2015至2016年，采用按年龄、性别分层随机抽样和问卷调查的方法，收集广西14个地市县1 533名调查对象。采集尿比重合格且资料信息齐全的尿样1 417份，采用原子荧光光谱测定方法进行尿砷含量检测。 结果： 广西健康成人尿砷正常值上限为0.053 mg/L。男性尿砷P(50)（0.011 mg/L）高于女性（0.008 mg/L），差异有统计学意义（Z=-5.352，P<0.01）；吸烟人群尿砷P(50)（0.012 mg/L）高于不吸烟人群（0.009 mg/L），差异有统计学意义（Z=-3.404，P<0.01）；沿海地区人群尿砷P(50)（0.012 mg/L）高于非沿海地区人群（0.009 mg/L），差异有统计学意义（Z=-7.522，P<0.01）。 结论： 广西地区健康成人尿砷正常值上限为0.053 mg/L，不同性别、地区等健康成人尿砷水平存在差异。.
Keywords: Arsenic; Guangxi; Normal value; Urine.