National Research Centre for Environmental Analysis and Measurement, Beijing100029, China.
State Key Laboratory of Environmental Criteria and Risk Assessment, Lake Research Center of Chinese Research Academy of Environmental Sciences, Beijing 100012, China; College of Water Science, Beijing Normal University, Beijing 100875, China.
Ecotoxicol Environ Saf. 2017 May;139:43-49. doi: 10.1016/j.ecoenv.2017.01.005.
Hexabromocyclododecane (HBCD) is a brominated flame retardant used throughout the world. It has been detected in various environmental media and has been shown toxic to aquatic life. The toxic effects of HBCD to aquatic organisms in Chinese freshwater ecosystems are discussed here. Experiments were conducted with nine types of acute toxicity testing and three types of chronic toxicity testing. After comparing a range of species sensitivity distribution models, the optimal model of Bull III was used to derive the safety thresholds for HBCD. The acute safety threshold and the chronic safety threshold of HBCD for Chinese freshwater organisms were found to be 2.32mg/L and 0.128mg/L, respectively. Both values were verified by the methods of the Netherlands and the United States. HBCD was found to be less toxic compared to other widely used brominated flame retardants. The present results provide valuable information for revision of the water quality standard of HBCD in China.
六溴环十二烷（HBCD）是一种在世界范围内使用的溴化阻燃剂。它已在各种环境介质中被检测到，并已被证明对水生生物具有毒性。本文讨论了 HBCD 对中国淡水生态系统中水生生物的毒性影响。进行了九种急性毒性试验和三种慢性毒性试验。在比较了一系列物种敏感性分布模型后，使用 Bull III 最优模型推导出 HBCD 的安全阈值。HBCD 对中国淡水生物的急性安全阈值和慢性安全阈值分别为 2.32mg/L 和 0.128mg/L。这两个值都经过了荷兰和美国方法的验证。与其他广泛使用的溴化阻燃剂相比，HBCD 的毒性较低。本研究结果为修订中国 HBCD 水质标准提供了有价值的信息。
