- Urinary Levels of Arsenic, Cadmium, and Zinc of Children in Ulsan Industrial Area.
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Choong Ryeol Lee, Cheol In Ryu, Ji Ho Lee, Sung Ryul Kim, Jin Young Jeong
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Korean J Prev Med. 1999;32(1):1-8.
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 Abstract
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- OBJECTIVES
We conducted this study to obtain basic data of urinary levels of arsenic, cadmium, and zinc in children of Ulsan industrial area and to evaluate the difference in urinary levels of these metals between industrial area and suburban area. METHODS: The study subjects were composed of 348(male 182, female 166) school children residing in industrial area and 100(male 50, female 50) school children of suburban area. We analyzed urinary levels of arsenic, cadmium, and zinc using atomic absorption spectrophotometer. RESULTS: The geometric means of urinary levels of arsenic, cadmium, and zinc of study participants were 3.69, 0.99, 282.49 microgram/L respectively. The adjusted geometric means of urinary levels of arsenic, cadmium, and zinc of study participants were 3.92, 1.05, 299.92 microgram/g creatinine respectively. CONCLUSIONS: The children residing in industrial area had the higher urinary levels of arsenic and cadmium than suburban children with statistical significance(p<0.01).
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Summary
- A Study on the Size of Dust in Workplaces of a Shipyard.
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Choong Ryeol Lee, Cheol In Ryu
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Korean J Prev Med. 1998;31(1):104-111.
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Abstract
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- To obtain the basic information that can be used as a factor for explaining the diversity of welders' pneumoconiosis, the authors measured the concentrations of dust according to the size of dust in 71 workplaces of a shipyard where welders' pneumoconiosis have occurred. The concentrations of dust according to the size of dust showed no difference between workplaces regardless of kinds of work.
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