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Sci Total Environ. 2019 May 15;665:484-491. doi: 10.1016/j.scitotenv.2019.01.238. Epub 2019 Feb 1.

The occurrence and distribution of polychlorinated naphthalenes (PCNs), focusing on tissue-specific bioaccumulation in crucian carp in South Korea.

Author information

1
Department of Civil and Environmental Engineering, Pusan National University, San 30, Jangjeon-dong, Geumjeong-gu, Busan 609-735, Republic of Korea.
2
College of Fisheries and Ocean Sciences, Chonnam National University, Yeosu 550-749, Republic of Korea.
3
National Institute of Environmental Research, Incheon 22689, Republic of Korea.
4
Department of Civil and Environmental Engineering, Pusan National University, San 30, Jangjeon-dong, Geumjeong-gu, Busan 609-735, Republic of Korea. Electronic address: jeoh@pusan.ac.kr.

Abstract

The occurrence and distribution of 41 congeners of polychlorinated naphthalenes (PCNs) were investigated in major tissues of crucian carp (muscle, gonad, liver, and blood) and in river sediment to assess the bioaccumulation potential of PCNs. The total PCN concentrations in sediment ranged from 4.37 to 19.5 pg/g dry weight (dw), mainly comprising CN-13, CN-33/34/37, and CN-38/40. Among fish tissues, higher PCN concentrations were observed in the gonads (29.6 ± 10.3 pg/g wet weight, ww) and liver (25.7 ± 4.35 pg/g ww) of crucian carp than in the muscle (2.17 ± 0.68 pg/g ww). CN-28/43, CN-33/34/37, CN-42, CN-52/60, CN-53/55, and CN-66/67 congeners were detected most frequently and had the highest concentration among all crucian carp tissues. We investigated the association between the PCN concentration in each tissue (muscle, liver, and gonad) and the size of the fish (total length and weight) and found positive correlations between the PCN concentration in the gonads and the total length and weight (p < 0.05, Spearman correlation).

KEYWORDS:

Bioaccumulation; Crucian carp; Polychlorinated naphthalenes; Sediment; Tissue-specific

PMID:
30776619
DOI:
10.1016/j.scitotenv.2019.01.238
[Indexed for MEDLINE]

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