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A Study on Blood Lead Levels of Children in Ulsan

Journal of the Korean Pediatric Society 1996;39(9):1231-1238.
Published online September 15, 1996.
A Study on Blood Lead Levels of Children in Ulsan
Seung Gyu Park1, In Gyeong Back1, Chul Ju Jung1, Dong Jin Lee1, Gyeong Dong Jung2
1Department of Pediatrics, DongKang General Hospital, Ulsan, Korea
2Department of Preventive Medicine, DongKang General Hospital, Ulsan, Korea
울산 지역 어린이들의 혈중 납농도에 관한 연구
박승규1, 백인경1, 정철주1, 이동진1, 정경동2
1울산동강병원 예방의학과
2울산동강병원 예방의학과
Abstract
Purpose
: Lead toxicity affects every organ system, most importantly, the central and periphral nervous systems, kidney, and blood. Not yet, there are not so many data about blood lead levels of children in Korea. The children residing in Ulsan have some risk exposured to lead because of air pollution resulted from rapid industrialization and some lead-using industries. So we estimated the blood lead levels of children in Ulsan and tried to abtain the predict values of them.
Methods
: Venous blood specimens were obtained for lead levels from two groups of 60 primary school children(30 residing in suburb, near-industry, and 30 in inner-city), aged 11-12 years. We also determined serum iron, ferritin, and hemoglobin. We compared blool lead levels between two groups according to nature of housing, age of housing, using the paint, condition of paint, parent's occupation.
Results
: 1) The mean blood lead levels of 60 chiddren was 6.20±2.29μg/dl. 2) The children residing in inner-city had the higher blood lead levels(7.02±2.29μg/dl) than near-industry, suburban children (5.38±1.99μg/dl) with statistical significance (p<0.01). 3) Four children had the blood lead level over 10μg/dl, but all of them below 15μg/dl, and no intellectual deficit. 4) Air lead in classroom of 2 schools was not detected. 5) The serum iron, ferritin and hemoglobin level were all within the normal range. 6) There were no significant difference of blood lead levels between two groups according to nature of husing, age of housing, using the paint, condition of paint, parent's occupations.
Conclusion
: The mean blood lead levels of some primary school children in Ulsan was 6.20±2.29μg/dl, within the acceptable ranges. Children residing in inner-city had slightly higher blood lead levels than near-industry, suburban children.
Key Words: Blood lead level, Children, Ulsan


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