Department of Civil and Environmental Engineering, Pusan National University, San 30, Jangjeon-dong, Geumjeong-gu, Busan 609-735, Republic of Korea.
College of Fisheries and Ocean Sciences, Chonnam National University, Yeosu 550-749, Republic of Korea.
Sci Total Environ. 2018 Sep 1;635:470-478. doi: 10.1016/j.scitotenv.2018.03.262. Epub 2018 Apr 24.
The occurrence and distribution of hexabromocyclododecanes (HBCDs) were investigated in freshwater, sediment, and selected crucian carp (Carassius carassius) tissues (muscle, liver, egg, and blood) to evaluate the potential for HBCDs bioaccumulation. The HBCDs concentration ranged from not detected to 0.35ng/L in freshwater, and from 0.037 to 35.4ng/g-dw in sediment. The highest HBCDs concentration was detected in crucian carp liver (5.14±8.15ng/g-ww), followed by egg (3.88±10.1ng/g-ww), blood (0.61±0.63ng/mL), and muscle (0.38±0.70ng/g-ww). In all crucian carp tissues, α-HBCD was the predominant stereoisomer, and the fraction of α-HBCD as a proportion of the total HBCDs in liver tissue (96%) was higher than that in egg tissue (79%). There was a positive correlation between the HBCDs concentration in crucian carp muscle and body size (p<0.01, Spearman). The biota-sediment accumulation factor (BSAF) (0.14) and bioconcentration factor (BCF) (137,000L/kg) values were estimated in crucian carp muscle using field-based data.
研究了六溴环十二烷（HBCDs）在淡水、沉积物和鲫鱼（Carassius carassius）组织（肌肉、肝脏、卵和血液）中的存在和分布，以评估 HBCDs 的生物累积潜力。淡水样本中 HBCDs 的浓度范围为未检出到 0.35ng/L，沉积物中为 0.037 至 35.4ng/g-dw。鲫鱼肝脏中 HBCDs 的浓度最高（5.14±8.15ng/g-ww），其次是卵（3.88±10.1ng/g-ww）、血液（0.61±0.63ng/mL）和肌肉（0.38±0.70ng/g-ww）。在所有鲫鱼组织中，α-HBCD 是主要的立体异构体，肝脏组织中 α-HBCD 占总 HBCDs 的比例（96%）高于卵组织（79%）。鲫鱼肌肉中 HBCDs 的浓度与体型大小呈正相关（p<0.01，Spearman）。利用现场数据估算了鲫鱼肌肉中的生物浓缩因子（BCF）（137000L/kg）和生物蓄积因子（BSAF）（0.14）。
