Time Trend of PBDEs in Serum Obtained from Korean General Population

Abstract

The present study aimed to provide time trend of polybrominated dipheny1 ethers (PBDE) in serum obtained from Korean general population. The concentration of 7 ∑PBDE congeners (BDE-28, 47, 99, 100, 153, 154, and 183) was determined with 103 human serum collected at 2006. The concentrations of ∑PBDEs (sum of seven congeners) ranged from 0.13 to 31.8 ng g-1 lipid with the median ∑PBDEs concentration of 6.70 ng g-1 lipid. The correlation of PBDE congeners with demographic literature, the peak and schematic time trend of ∑PBDEs concentration was estimated. The concentration of ∑PBDEs decreased with time and the peak of ∑PBDEs was before 2001. Futhermore, 6 pooled serum samples covered from 2006 to 2013 were analyzed to observe temporal trend. The highest concentration of ∑PBDEs was shown in 2006 (5.98 ng/g lipid) followed by a decrease in 2013 (2.98 ng/g lipid). Each congener showed different decreasing rates of the concentration.