폐금속광산 지역 주민들의 요 중 비소종별 농도와 관련요인 평가

Urinary Arsenic Species Concentrations and Related Factors among Residents Living near Abandoned Metal Mines

Objectives: The purpose of this study was to evaluate urinary arsenic concentrations by arsenic species and to identify related factors among local residents near abandoned metal mines in Korea. Methods: Among the subjects of the Health Survey of Residents Near Abandoned Metal Mines for 2013-2017, 664 people were enrolled in this study. Urinary arsenic species analysis was performed using ICP/MS. Result: The geometric means (95% Confidence Interval) by urinary arsenic species were 0.15 (0.13-0.17) µg/L for AsIII, 0.64 (0.55-0.75) µg/L for AsV, and 1.21 (1.05-1.40) µg/L for inorganic arsenic. The geometric means of urinary MMA and DMA were 1.58 (1.35-1.86) µg/L and 77.93 (72.61-83.63) µg/L, respectively, and that of organic arsenic was 83.15 (77.80-88.88) µg/L. The concentration of inorganic arsenic in the group using groundwater as drinking water was 1.36 (1.13-1.64) µg/L, which was statistically significantly higher than the 1.00 (0.80-1.25) µg/L in the other drinking water groups. Regarding rice consumption, the concentration of inorganic arsenic in urine in the group whose consumption was more than half rice produced in the residential area was 1.32 μg/L, which was statistically significantly higher than that of the 1.12 μg/L for the group whose consumption was less than half. Conclusion: In the analysis of the factors affecting the urinary inorganic arsenic concentration of the residents of the abandoned metal mine area, the use of groundwater as drinking water and consumption of rice produced n the residential area were considered related factors.