Journal
MARINE POLLUTION BULLETIN
Volume 83, Issue 1, Pages 306-316Publisher
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.marpolbul.2014.04.036
Keywords
Polycyclic aromatic hydrocarbons; Partition coefficient; Bioconcentration factors; Fish; River water
Funding
- key joint project of National Natural Science Foundation of China and Guangdong Province [111201235]
- Team Project of National Natural Science Foundation of China [41121063]
- GIGCAS 135 project [Y234081001]
- Earmarked Foundation of the State Key Laboratory [SKLOG2009A04]
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The partitioning and bioaccumulation of polycyclic aromatic hydrocarbons (PAHs) in water, suspended particulate matter (SPM), and fish samples from the Dongjiang River (DR), Pearl River (PR), and the Pearl River Estuary (PRE) were examined. Although PAHs are much lower in PRE than in DR or PR, PAHs in some fish species are significantly higher in PRE than in DR or PR. Aqueous or particulate PAHs respectively show significant correlations with dissolved organic carbon, particulate organic matter, and chlorophyll a, suggesting that biological pumping effect regulates their distribution. The in situ partitioning coefficients (logK(oc)) for PAHs are one order magnitude higher than the empirical logK(oc)-logK(ow) correlation. The bioconcentration factor (BCF) is slightly higher for the marine fish than for the freshwater fish. The above phenomena indicate that BCF may vary due to the diversity of fish species, feeding habits, and metabolism of PAHs in fish. (C) 2014 Elsevier Ltd. All rights reserved.
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