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KMID : 0895420090190040336
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Journal of Korean Society of Occupational and Enviromental Hygiene
2009 Volume.19 No. 4 p.336 ~ p.346
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A study on environmental exposure Levels of residents in an industrial complex area
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Yang Hee-Sun
Hwang Moon-Young
Ahn Seung-Chul
Lee Ji-Young
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Abstract
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As a follow-up survey of A Study of Monitoring Method on Exposure Level and Biomarkers of Environmental Pollutants-Focused on Ulsan Industrial Comlpex Area, published in 2005, a close examination of the health status was conducted for selected Ulsan residents. Based on the previous study, a total number of 129 subjects were divided into two groups: the exposure group consisted of 39 residents whose blood levels of lead, mercury and/or cadmium were higher than international reference values, and 90 residents of control group with normal evels. Environmental exposure level and its association with ealth condition were examined by various methods such as questionnaire, analyses of lead, mercury and cadmium in blood and medical examinations. The geometric mean concentrations of lead, mercury and cadmium in blood were respectively 2.07㎍/㎗ (exposure 2.54 ㎍/㎗, control 1.90 ㎍/㎗), 5.94 ㎍/L(exposure 8.57 ㎍/L, control 5.07 ㎍/L), 1.32 ㎍/L (exposure 1.30 ㎍/L, control 1.33 ㎍/L). The concentrations of the three heavy metals in blood showed lower levels than internationally recommended values except for blood mercury. Also, any abnormal or, peculiar disease, or target tissue damage related to the heavy metals was not observed among the all subjects. Therefore, it can be said that no significant difference of heavy metal concentrations and health conditions was found between the two groups.
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KEYWORD
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heavy metals, Lead, mercury, cadmium, blood Levels
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