Guangxi Laboratory on the Study of Coral Reefs in the South China Sea, Guangxi University, Nanning 530004, China; Coral Reef Research Center of China, Guangxi University, Nanning 530004, China; School of Marine Sciences, Guangxi University, Nanning 530004, China.
Guangxi Laboratory on the Study of Coral Reefs in the South China Sea, Guangxi University, Nanning 530004, China; Coral Reef Research Center of China, Guangxi University, Nanning 530004, China; School of Marine Sciences, Guangxi University, Nanning 530004, China.
Chemosphere. 2018 Jan;191:450-457. doi: 10.1016/j.chemosphere.2017.10.071. Epub 2017 Oct 15.
The contamination profiles of sixteen perfluoroalkyl substances (PFAS) were examined in coral reef fish samples collected from the South China Sea (SCS) where no information about this topic was available in the literature. The results revealed that six PFAS were found in coral reef fish samples from the SCS. Perfluorooctane sulfonate (PFOS) was the most predominant PFAS contaminant detected in most of the samples, with the highest concentration value of 27.05 ng/g wet weight (ww) observed in Cephalopholis urodelus. Perfluoroundecanoic acid (PFUnDA) and Perfluorotridecanoic acid (PFTrDA) were the second and third dominant PFAS, respectively. Mean PFOS concentrations in muscle of seven coral reef fish varied from 0.29 ng/g ww in Lethrinus olivaceus to 10.78 ng/g ww in Cephalopholis urodelus. No significant linear relationship was observed between PFOS levels and coral reef fish traits (length, weight) collected in this region. Average daily intake of PFOS for the seven coral reef fishes ranged from 0.79 ng/kg/d for Lethrinus olivaceus to 29.53 ng/kg/d for Cephalopholis urodelus. The hazard ratio (HR) values for human consumption of PFOS-contaminated coral reef fishes ranged from 0.04 to 1.48, with Cephalopholis urodelus having the highest HR value of 1.18 (higher than 1) among the species, indicating frequent consumption of Cephalopholis urodelus might pose potential health risk to local population. The present work have provided the first hand data of PFAS in coral reef fishes in the SCS and indirectly demonstrated the existence of low level PFAS pollution in the SCS in China.
对采自中国南海（SCS）珊瑚礁鱼类样本中的十六种全氟烷基物质（PFAS）的污染情况进行了研究。在这方面，文献中尚无有关该主题的信息。结果表明，在 SCS 的珊瑚礁鱼类样本中发现了六种 PFAS。全氟辛烷磺酸（PFOS）是大多数样本中最主要的 PFAS 污染物，在驼背鲈（Cephalopholis urodelus）中观察到的最高浓度值为 27.05ng/g 湿重（ww）。全氟壬酸（PFUnDA）和全氟十三烷酸（PFTrDA）分别是第二和第三主要的 PFAS。七种珊瑚礁鱼类肌肉中的 PFOS 浓度平均值从尖吻鲈（Lethrinus olivaceus）中的 0.29ng/g ww 到驼背鲈（Cephalopholis urodelus）中的 10.78ng/g ww 不等。在该地区采集的 PFOS 水平与珊瑚礁鱼类特征（长度、重量）之间未观察到显著的线性关系。七种珊瑚礁鱼类对 PFOS 的平均日摄入量从尖吻鲈（Lethrinus olivaceus）的 0.79ng/kg/d 到驼背鲈（Cephalopholis urodelus）的 29.53ng/kg/d 不等。人类食用受 PFOS 污染的珊瑚礁鱼类的危害比（HR）值范围为 0.04 至 1.48，其中驼背鲈（Cephalopholis urodelus）的 HR 值最高，为 1.18（高于 1），表明经常食用驼背鲈（Cephalopholis urodelus）可能会对当地居民造成潜在的健康风险。本研究首次提供了 SCS 珊瑚礁鱼类中 PFAS 的一手数据，并间接地证明了中国南海存在低水平的 PFAS 污染。
