期刊
SCIENCE OF THE TOTAL ENVIRONMENT
卷 635, 期 -, 页码 470-478出版社
ELSEVIER SCIENCE BV
DOI: 10.1016/j.scitotenv.2018.03.262
关键词
River water; Sediment HBCDs source; Fish tissues; Body size; Bioaccumulation factors
资金
- National Institute of Environmental Research, Korea [NIER-SP2016-421]
- Basic Science Research Program through the National Research Foundation of Korea (NRF) - Ministry of Education, Science and Technology [NRF-2015R1C1A2A01051544]
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 0.35 ng/L in freshwater, and from 0.037 to 35.4 ng/g-dw in sediment. The highest HBCDs concentration was detected in crucian carp liver (5.14 +/- 8.15 ng/g-ww), followed by egg (3.88 +/- 10.1 ng/g-ww), blood (0.61 +/- 0.63 ng/mL), and muscle (0.38 +/- 0.70 ng/g-ww). In all crucian carp tissues, alpha-HBCD was the predominant stereoisomer, and the fraction of a-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) (137,000 L/kg) values were estimated in crucian carp muscle using field-based data. (C) 2018 Elsevier B.V. All rights reserved.
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