Polychlorinated naphthalenes (PCNs) in seafood: Estimation of dietary intake in Korean population

Polychlorinated naphthalenes (PCNs) were measured in 33 seafood species including fish, mollusks and crustaceans purchased from local markets in five Korean cities between 2012 and 2013. Five samples were collected from each species for the measurements. Thirty-seven PCN congeners from tetra-CN to o...

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Bibliographic Details
Published in:Science of The Total Environment
Main Authors: Kim, Jongchul, Shin, Eun-Su, Choi, Sung-Deuk, Zhu, Jiping, Chang, Yoon-Seok
Format: Article in Journal/Newspaper
Language:English
Published: ELSEVIER SCIENCE BV 2018
Subjects:
CHLORONAPHTHALENE CONGENERS
PARTITION-COEFFICIENTS
RELATIVE POTENCIES
HUMAN ADIPOSE
GREAT-LAKES
ARCTIC AIR
BALTIC SEA
BIPHENYLS
EXPOSURE
DIBENZO-P-DIOXINS
PCNs
Seafood
Dietary intake
Korea
Arctic
Online Access:https://oasis.postech.ac.kr/handle/2014.oak/95905
https://doi.org/10.1016/j.scitotenv.2017.12.009
Description
Summary:Polychlorinated naphthalenes (PCNs) were measured in 33 seafood species including fish, mollusks and crustaceans purchased from local markets in five Korean cities between 2012 and 2013. Five samples were collected from each species for the measurements. Thirty-seven PCN congeners from tetra-CN to octa-CN were measured. Octa-CN (octachloronaphthalene) was not detected in any of the samples. Tetra-CN and penta-CN were the predominant homologues of PCNs in seafood samples with PCN 51 and PCN 52/60 being the most abundant congeners in the samples. Total PCNs concentrations and their corresponding dioxin-like toxic equivalent (TEQ) values ranged from non-detection (ND) to 110 pg/g on a wet weight (ww) basis and from ND to 0.14 pg-TEQ/g ww, respectively. The estimated daily intake of total PCNs based on an absolute content and TEQ potency were estimated for the Koreans to be 570 pg/day and 0.44 pg-TEQ/day, respectively. However, the estimated TEQ value of PCNs intake from seafood, represented only a small fraction (3.0%) of the total TEQ intake from consumption of seafood in Korean population. This is the first report to exhibit the presence of PCNs in seafood samples collected from local markets in Korea and their intake by general population. (C) 2017 Elsevier B.V. All rights reserved. 1 1 N scie scopus

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