Brominated flame retardant (BFRs) and Dechlorane Plus (DP) in paired human serum and segmented hair
| Autor: | Bi-Xian Mai, Lin Qiao, Zhong-Yi Yang, Xiaobo Zheng, Mei-Huang Wang, Jing Zheng, Xiao Yan, She-Jun Chen |
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| Rok vydání: | 2018 |
| Předmět: |
Male
China South china 010504 meteorology & atmospheric sciences Segmental analysis Health Toxicology and Mutagenesis 010501 environmental sciences 01 natural sciences Gas Chromatography-Mass Spectrometry chemistry.chemical_compound Sex Factors Polybrominated diphenyl ethers Animal science Dry weight Halogenated Diphenyl Ethers Hydrocarbons Chlorinated medicine Humans Polycyclic Compounds Flame Retardants 0105 earth and related environmental sciences integumentary system Chemistry Public Health Environmental and Occupational Health General Medicine Dechlorane plus Pollution Hydrocarbons Brominated Congener medicine.anatomical_structure Scalp Environmental chemistry Brominated flame retardant Female Environmental Monitoring Hair |
| Zdroj: | Ecotoxicology and Environmental Safety. 147:803-808 |
| ISSN: | 0147-6513 |
| DOI: | 10.1016/j.ecoenv.2017.09.047 |
| Popis: | 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 < 0.05), which could be due to the longer exposure time of distal segments. The proximal segments exhibited a unique congener profile, more close to that in the serum rather than the distal segments of hair. An obvious gender difference was found in the levels of ∑PBDEs using integrated hair samples, while the difference disappeared when considering alone the proximal segments of hair (0-5cm from scalp) for both genders. This paper provides supplement to the current knowledge on sources of BFRs and DPs in hair and declares the importance of segmental analysis. |
| Databáze: | OpenAIRE |
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