<学術雑誌論文>
福岡県油症検診(2007-2010年度)受診者における血液中PCB濃度と傾向

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概要 We performed PCB congener specific analysis using HRGC/HRMS and determined their concentrations and blood chromatogram classifications in 275 individual blood samples collected during annual Yusho exa...minations between 2007 and 2010. When both blood total PCB concentrations and blood chromatogram classifications were compared among eleven Yusho patients undergoing examinations between 2007 and 2010, the longitudinal concentrations and classifications in the respective individuals hardly changed over these years. In a subset of persons suspected of Yusho, it was found that the mean total blood concentrations of three index congeners, that is, 2,3',4,4', 5-pentaCB (PCB118), 2,2',4,4',5,5'-hexaCB (PCB153), 2,3,3',4,4',5-hexaCB (PCB156) and mean blood total PCB concentrations gradually decreased between 2007 and 2010. Mean concentration of PCB118 in blood from persons suspected of Yusho was calculated as 0. 035 ng/g in the 2010 examination, which was 36 % lower than the mean value of 0.054 ng/g in the 2007 examination : the concentration of PCB118 showed the highest degree of decrease among the three index congeners. Among persons suspected of Yusho, occupational rates of persons with blood PCB concentrations below one ppb in the entire population increased from approx. 50% in 2007 to approx. 70% in 2010. The lowest concentration of PCB156 in blood of persons suspected of Yusho in 2010 was 0.43 pg/g, which was almost equivalent to the limit of the determination value on HRGC/HRMS, S/N = 10.続きを見る

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登録日 2012.06.04
更新日 2021.07.28

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