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研究目的：探讨关于环境镉（Ｃｄ）污染改善后的１０年间，尿中Ｃｄ浓度的变化。方法：在长崎县对马严原町的Ｃｄ污染地区，于１９８２年、１９９２年进行了２次横断面调查（土壤恢复于１９８３年结束）。调查对象１９８２年２６５人（５０岁以上），１９９２年４０４人（３０?
The purpose of this study was to investigate changes in urinary concentrations of Cd in the 10 years after environmental cadmium (Cd) pollution improved. Methods: Two cross-sectional surveys were conducted in 1982 and 1992 in Cd-contaminated areas of Makyanhara-cho, Nagasaki Prefecture (soil recovery ended in 1983). Survey of 265 people in 1982 (50 years of age), 404 in 1992 (30?