Brominated Flame Retardants in Serum from the General Population in Northern China

被引:83
作者
Zhu, Lingyan [1 ]
Ma, Baoling [1 ]
Hites, Ronald A. [2 ]
机构
[1] Nankai Univ, Coll Enivronm Sci & Engn, Key Lab Pollut Proc & Environm Criteria, Minist Educ, Tianjin 300071, Peoples R China
[2] Indiana Univ, Sch Publ & Environm Affairs, Bloomington, IN 47405 USA
关键词
POLYBROMINATED DIPHENYL ETHERS; SOLID-PHASE EXTRACTION; POLYCHLORINATED-BIPHENYLS; BREAST-MILK; TEMPORAL TRENDS; FETAL BLOOD; EXPOSURE; PBDE; WORKERS; SAMPLES;
D O I
10.1021/es901296t
中图分类号
X [环境科学、安全科学];
学科分类号
08 ; 0830 ;
摘要
In 2006, 128 serum samples were collected from three populations in Tianjin, China: office cleaners, university students, and policemen. These samples were all analyzed for polybrominated diphenyl ethers (PBDEs) and for other brominated flame retardants (BFRs). The median concentration of total PBDEs (sum of 41 congeners) was 7.1 ng/g lipid, ranging from 0.48 to 1980 ng/g lipid. Among these PBDE congeners, the median sum of the tri- to hepta-PBDE (Sigma PBDE3-7) congener concentrations was 2.9 ng/g lipid, ranging from 0.48 to 20 ng/g lipid. The most common tri- to heptabrominated congeners were BDE-47 (30% of total), BDE-99 (24%), BDE-183 (15%), BDE-153 (12%), BDE-28 (9.5%), and BDE-100 (6.2%). These levels of Sigma PBDE3-7 were similar to those observed in Europe and Asia but were much lower than those observed in North America. Highly brominated BDE congeners were detected in some serum samples. In particular, BDE-209 was detected in 28 samples; the median BDE-209 concentration in these samples was 42 ng/g lipid, ranging from ND to 1770 ng/g lipid, The total PBDE levels in office cleaners were significantly higher than in university students and policemen. In addition, we also measured several other BFRs. Hexabromobenzene (HBB) was identified in 26 samples with a median concentration of 0.27 ng/g lipid, ranging from 0.11 to 1.50 ng/g lipid. Pentabromoethylbenzene (PBEB), hexabromocyclododecane (HBCD), 1,2-bis(2,4,6-tribromophenoxy)ethane (BTBPE), and decabromodiphenylethane (DBDPE) were not detected in any of these samples,
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页码:6963 / 6968
页数:6
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