[Investigation on the normal value of urinary arsenic in healthy people in different areas of Guangxi, China].

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 arsenic P (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 arsenic P (50)(0.012mg/L) was higher than that of nonsmokers(0.009mg/L), the difference was statistically significant( Z =3.404, P <0.01). Group P (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.