| 我国3个城市人体血清中新型溴代阻燃剂水平趋势及分布特征 |
| 摘要点击 2953 全文点击 1246 投稿时间：2017-09-05 修订日期：2017-10-30 |
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| 中文关键词 新型溴代阻燃剂 人体血清 年龄段 含量 暴露 |
| 英文关键词 novel brominated flame retardants (NBFRs) human serum age group level exposure |
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| 中文摘要 |
| 本研究检测分析了我国吉林省伊通满族自治县（YT）、湖南省怀化市（HH）、四川省甘孜藏族自治州（GZ）3个城市5个年龄段（≥ 60、50~59、40~49、30~39、20~29岁）人体混合血清中六溴苯（hexabromobenzene，HBB）、五溴甲苯（pentabromotoluen，PBT）、五溴苯（pentabromophenyl，PBBz）、四溴对二甲苯（tetrabromo-p-xylene，PTBX）等4种新型溴代阻燃剂（NBFRs）的含量水平.PBBz、PBT和HBB在人体血清中的检出率为100%.在3个城市中，NBFRs总含量、HBB含量、PBT含量、PBBz含量（除GZ外）均在年轻人群中有升高的趋势.在5个年龄段中，YT和HH均有明显的主要污染物，但GZ首要污染物不明显且4种NBFRs含量占比在5个年龄段中基本稳定.3个城市人体血清中NBFRs在5个年龄段中的组成分布呈现出不同的趋势，表明不同地区的污染来源不同.其中，工业较为发达地区（YT和HH）人体血清中NBFRs总含量高于欠发达地区（GZ）的水平. |
| 英文摘要 |
| Four novel brominated flame retardants (NBFRs), hexabromobenzene (HBB), pentabromotoluen (PBT), pentabromophenyl (PBBz), and tetrabromo-p-xylene (PTBX), were found in human serum samples pooled by donor age (≥ 60, 50-59, 40-49, 30-39, and 20-29 years old) and supplied by Yitong (YT, Jilin Province), Ganzi (GZ, Sichuan Province), and Huaihua (HH, Hunan Province). PBBz, PBT, and HBB were found in each of the pooled samples. The total NBFRs concentration in YT and HH were higher than the concentration found in GZ. The concentrations of total NBFRs, HBB, PBT, and PBBz (except GZ) were elevated in young people. In both YT and HH, the main pollutants were found in the five age groups; however, the main pollutants in GZ were not obvious, and the concentration ratios of four of the NBFRs were basically stable in the five age groups. The distribution of NBFRs in human serum in the three cities showed different trends in the five age groups, which indicated different sources of pollution in different areas. The total concentrations of NBFRs in the industrially developed areas (YT and HH) were higher than that in the less developed areas (GZ). |
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