College of Chemistry and Chemical Engineering, Ocean University of China, Qingdao, 266100, China; Guangxi Laboratory on the Study of Coral Reefs in the South China Sea, School of Marine Sciences, Guangxi University, Nanning, 530004, PR China.
Guangxi Laboratory on the Study of Coral Reefs in the South China Sea, School of Marine Sciences, Guangxi University, Nanning, 530004, PR China.
Sci Total Environ. 2023 Jan 20;857(Pt 2):159445. doi: 10.1016/j.scitotenv.2022.159445. Epub 2022 Oct 14.
Bisphenol analogues (BPs) have gained increasing attention in recent years due to their ubiquitousness in the environment, potential endocrine disrupting properties and ecological impacts. However, very little information is available on the occurrence, partitioning and ecological risks of BPs in marine environments. In the present study, six BPs were investigated in surface water and sediment samples from the Beibu Gulf, South China Sea. Results showed that bisphenol A (BPA) was the predominant BP in both water and sediment samples with levels ranging from 5.26 to 12.04 ng/L in water and 0.56 to 5.22 ng/g dw in sediment samples, followed by bisphenol AF (BPAF: 0.44-0.60 ng/L in water and 0.08-0.66 ng/g dw in sediment samples, respectively) and bisphenol S (BPS: 0.07-0.63 ng/L in water and not detected (ND) to 0.19 ng/g dw in sediment samples, respectively). There is no significant spatial difference of BPs levels between riverine sediment samples and coastal sediment samples. Compared with other studies, the concentrations of BPs from the Beibu Gulf were relatively low. The mean log-transformed sediment-seawater partitioning coefficients (log K) ranged from 4.4 (DHBP) to 5.2 (BPAF) and the log K values for all the target BPs were generally higher than those reported in freshwater environments. The present study firstly reported the field-based log K values for BPB (mean: 4.5) and DHBP (mean: 4.4). The estimated risk quotient (RQ) and 17β-estradiol (E2) equivalent quotient (EEQ) values indicated that the ecological and human health impacts were negligible associated with target BPs. The present study provided reliable and detailed data for completely evaluating contamination level and environmental behaviors of BPs in the Beibu Gulf.
双酚类似物（BPs）由于其在环境中的普遍性、潜在的内分泌干扰特性和生态影响而受到越来越多的关注。然而，关于海洋环境中 BPs 的发生、分配和生态风险的信息非常有限。在本研究中，调查了南海北部湾表层水和沉积物样品中的 6 种 BPs。结果表明，双酚 A（BPA）是水和沉积物样品中主要的 BP，其浓度范围分别为 5.26-12.04ng/L 和 0.56-5.22ng/g dw。其次是双酚 AF（BPAF：分别为 0.44-0.60ng/L 和 0.08-0.66ng/g dw）和双酚 S（BPS：分别为 0.07-0.63ng/L 和未检出（ND）至 0.19ng/g dw）。河口水和近岸沉积物样品中 BPs 水平无显著空间差异。与其他研究相比，北部湾的 BPs 浓度相对较低。平均对数转换的沉积物-海水分配系数（log K）范围为 4.4（DHBP）至 5.2（BPAF），所有目标 BPs 的 log K 值通常高于淡水环境中的报告值。本研究首次报道了 BPB（均值：4.5）和 DHBP（均值：4.4）的现场 log K 值。估计的风险商（RQ）和 17β-雌二醇（E2）当量商（EEQ）值表明，目标 BPs 对生态和人类健康的影响可以忽略不计。本研究为全面评估北部湾 BPs 的污染水平和环境行为提供了可靠和详细的数据。
Zotero 插件