Brominated flame retardant (BFRs) and Dechlorane Plus (DP) in paired human serum and segmented hair
Abstract Brominated flame retardants (BFRs) and Dechlorane Plus (DP) were measured in both human hair and paired serum samples from a cohort of university students in South China. Segmental analysis was conducted to explore gender difference and the relationships between the hair and serum. The concentrations of total PBDEs in the hair and serum samples were in a range of 0.28–34.1ng/g dry weight (dw) and 0.16–156ng/g lipid weight (lw), respectively. Concentrations of ∑DPs (sum of the syn -DP and anti -DP isomers) in all hair samples ranged from nd-5.45ng/g dry weight. Concentrations of most PBDEs and decabromodiphenylethane (DBDPE) in distal segments (5–10cm from the scalp) were higher than those in the proximal segments (0–5cm from the scalp) ( t -test, p Highlights Most BFRs levels in distal segments of hair were higher than proximal segments. PBDE congener profile in proximal segments of hair was closer to that in serum. PBDE congener profile in distal segments of hair was closer to that in dust. Female hair had higher BFR concentrations than male when using integrated hair. No gender difference was observed when using the same position of hair.
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