title: Assessment on the occupational exposure of manufacturing workers to Dechlorane Plus through blood and hair analysis.
abstract: Dechlorane Plus (DP), as a widely used flame retardant in different electrical and textile applications, has recently attracted great concern around the world. The present study investigated the DP levels and distribution in human samples from a DP manufacturing plant and a nearby area in east China. The DP concentrations ranged from 89.8 to 2958 ng/g lipid weight in whole blood and 4.08 to 2159 ng/g dry weight in hair. For the workers engaged in DP manufacturing process, their DP levels were significantly higher than those in most of the other two control groups from the nearby area. The values of anti-DP fractional abundance (fanti ratio) were commonly lower in the human samples from both the manufacturing plant and nearby area compared with those in the commercial products, and excretion as well as biotransformation are possible reasons for stereoselective accumulation of the syn-DP isomer in humans. Furthermore, a significantly positive relationship (p < 0.05) was obtained between (i) the concentrations (and fanti) in the paired blood and hair samples, indicating a similar distribution pattern of the two DP isomers in the paired samples; (ii) the DP levels in human body and the exposure time (p < 0.05), which suggests that further assessment could be needed to investigate potential long-term risks to the occupational population.
authors.affiliation: State Key Laboratory of Environmental Chemistry and Ecotoxicology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences , Beijing 100085, China.
authors.forename: Haidong
authors.initials: H
authors.lastname: Zhang
authors.forename: Pu
authors.initials: P
authors.lastname: Wang
authors.forename: Yingming
authors.initials: Y
authors.lastname: Li
authors.forename: Hongtao
authors.initials: H
authors.lastname: Shang
authors.forename: Yawei
authors.initials: Y
authors.lastname: Wang
authors.forename: Thanh
authors.initials: T
authors.lastname: Wang
authors.forename: Qinghua
authors.initials: Q
authors.lastname: Zhang
authors.forename: Guibin
authors.initials: G
authors.lastname: Jiang
mesh_terms: D000328:Adult; D000395:Air Pollutants, Occupational / Q000032:analysis* / Q000097:blood; D002681:China; D004784:Environmental Monitoring; D005260:Female; D005411:Flame Retardants / Q000032:analysis*; D006197:Hair / Q000737:chemistry*; D006801:Humans; D006843:Hydrocarbons, Chlorinated / Q000032:analysis* / Q000097:blood; D008297:Male; D008875:Middle Aged; D016273:Occupational Exposure / Q000032:analysis*; D011083:Polycyclic Compounds / Q000032:analysis* / Q000097:blood
chemical_list: D000395:Air Pollutants, Occupational; D005411:Flame Retardants; D006843:Hydrocarbons, Chlorinated; D011083:Polycyclic Compounds; C526360:dechlorane plus