Annals of Occupational and Environmental Medicine

Sung Woo Choi

1 Article

Bone and Blood Lead Levels of Middle Aged Koreans not Occupationally Exposed to Lead: Nam Soo Kim, Sung Woo Choi, Jin Ho Kim, Jung O Ham, Hae Yoon Park, Kyu Dong Ahn, Byung Kook Lee; Korean Journal of Occupational and Environmental Medicine 2007;19(4):285-292. Published online December 31, 2007; DOI: https://doi.org/10.35371/kjoem.2007.19.4.285

OBJECTIVES
In order to investigate the level and the association between bone lead and blood lead levels of non-occupationally, lead-exposed Koreans, the authors studied the lead biomarkers of 137 middle aged Koreans (86 males and 51 females) older than whose age were above 40 years.
METHODS
The tibia lead level was selected as the bone lead indicator of cortical bone, and the blood lead level was also measured. The tibia lead level was measured by K-shell XRF with 30-minute measurement of each subjects. The blood lead level was analyzed by AAS method.
RESULTS
The mean (SD) of the tibia lead level of the 137 study subjects was 3.49 (4.99) microgram/g, and tended to be higher. The mean (SD) of tibia lead level in male subjects (was 3.90 (4.88) microgram/g) and larger than in that of female subjects (2.80 (5.14) microgram/g), but without no statistical significance was observed. The mean (SD) of blood lead level of all total subjects was 3.70 (1.35)microgram/dl, and tended to be higher. The mean (SD) of blood lead level in male subjects (was 3.93 (1.25) microgram/dl) and larger than in that of female subjects (3.30 (1.42) microgram/dl), but without no statistical significance was observed. In multiple regression analysis of blood lead levels after adjusting for covariates, age was a significant independent variable. A weak association of age with tibia lead in female subjects was also observed in multiple regression analysis.
CONCLUSION
The mean (SD) of tibia and blood lead levels of middle aged Koreans whose ages were over 40 years old were 3.49 (4.99) microgram/g and 3.70 (1.35) microgram/dl, respectively. Age and sex were positive predictors of blood lead level in multiple regression analysis after controlling for the covariates. However, in multiple regression analysis whereas age was weakly association with tibia lead level only in female subjects in multiple regression analysis.

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Blood lead concentration and related factors in Korea from the 2008 National Survey for Environmental Pollutants in the Human Body
Seong Wook Jeong, Chae Kwan Lee, Chun Hui Suh, Kun Hyung Kim, Byung Chul Son, Jeong Ho Kim, Jong Tae Lee, Soo Woong Lee, Yeong Beom Park, Jong Wha Lee, Seung-Do Yu, Chan Seok Moon, Dae Hwan Kim, Sang Yoon Lee
International Journal of Hygiene and Environmental Health.2014; 217(8): 871. CrossRef
National estimates of blood lead, cadmium, and mercury levels in the Korean general adult population
Nam-Soo Kim, Byung-Kook Lee
International Archives of Occupational and Environmental Health.2011; 84(1): 53. CrossRef

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