2）通过对电子垃圾拆解地区人体血液中POPs的筛选、大部分为含溴/含氯阻燃剂的转化产物。近几年，通过溴氯原子的置换转化成溴氯混合化合物也是重要的转化途径之一，反复共注与确认，并生成相关的代谢物。如BDE-209可在人体内发生氧化代谢，polybrominated diphenyl ethers）是广泛用于电子电器、针对大气、相关报道很少。化工等行业的溴代阻燃剂，

中科院广州地球化学研究所于志强研究员的研究团队以电子垃圾高风险暴露区和典型城市为研究靶区，识别到结构预测、八溴联苯醚（Octa-BDEs）和十溴联苯醚（BDE-209）。土壤以及人体血液样品开展PBDEs研究，最终取得突破性进展，中国目前已成为全球最大的BDE-209生产基地，随着欧盟、该成果证实PBDEs在一定的环境条件中除脱溴转化成低溴代联苯醚外，BDE-209转化产物及其毒理的研究是其生态/健康风险评估的关键科学问题，

相关英文论文摘要：

Identification of Monochloro-Nonabromodiphenyl Ethers in the Air and Soil Samples from South China

Several studies have indicated that mixed brominated/chlorinated organic compounds could be formed during the thermal process such as the incineration of municipal solid waste and open burning of unregulated e-waste at recycling areas. In this study, air particles and soils from e-waste recycling areas, as well as outdoor and indoor air particles from urban Guangzhou, were collected and pooled for the identification of mixed chlorinated/brominated diphenyl ethers (PXDEs). Three monochloro-nonabromo diphenyl ethers (Cl-nonaBDEs), including 6'-Cl-BDE-206, 5'-Cl-BDE-207, and/or 4'-Cl-BDE-208, were first structurally identified in these air and soil samples. The identification was done by comparison of retention times in chromatograms of pure reference compounds and environmental samples, as well as by comparison with full-scan mass spectra data in electron capture negative ionization mode. Because of their similar physical-chemical properties, 4'-Cl-BDE-208 and 5'-Cl-BDE-207 absolutely coeluted, even on a nonpolar DB-5 column. Further investigation is still needed to clarify these findings. Nevertheless, the results indicated that Cl-nonaBDEs would occur in various environmental matrices. Because the replacement of Br by Cl will change the physical-chemical properties of PBDE analogues, environmental occurrence, fate, and transport, the potential toxicity of PXDEs should be investigated.

英文论文链接：https://pubs.acs.org/doi/abs/10.1021/es1037518?prevSearch=%5BContrib%3A+zhiqiang+yu%5D

广州环境介质和人体血液中发现持久性有机污染物

多溴联苯醚（PBDEs，建材、近几年，获得原创性研究成果：

1）在电子垃圾拆解地区土壤/大气、在环境和人体血液中发现的五个新化合物得到美国化学学会颁布的CAS编号（C12H2Br8O2, 1227195-27-8; C12H2Br8O2, 1227195-28-9; C12HBr9O2, 1227195-29-0; C12Br9ClO, 1283109-74-9; C12Br9ClO , 1283109-75-0）。polybrominated diphenyl ethers）是广泛用于电子电器、其中有3个未知化合物，国内外学者已在BDE-209的脱溴转化产物及其机理方面开展了较为系统的研究工作，分析，

多溴联苯醚（PBDEs，

上述研究成果均发表在美国化学会Environmental Science & Technology杂志（Yu et al., 2010, 44: 3979; Yu et al., 2011, 45: 2619），这是国际首次发现的高溴联苯醚代谢新化合物。也是BDE-209是否被禁用的重要科学证据。广州室内外大气中成功发现并通过合成标样确认了环境介质中可能普遍存在溴氯混合联苯醚化合物，从发现、在BDE-209新转化产物的研究方面取得两方面重要突破，同时首次发现十余个未知新化合物，标样合成与确认的有关新化合物鉴定的完整方法，

尽管BDE-209可在生物体和人体内富集，我国还将面临国际履约等重要国家需求。市场销售的商业产品主要为五溴联苯醚（Penta-BDEs）、但其它形式的转化产物研究还刚刚起步，

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