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Perfluoroalkyl Substances (PFASs) in Ten Edible Freshwater Fish Species from Major Rivers and Lakes in Korea: Distribution and Human Exposure by Consumption

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Abstract

Objective

In this study, we determined 13 perfluoroalkyl substances (PFASs) concentrations in 514 samples of blood, liver, muscle and egg tissues of ten edible freshwater fish species from major rivers and lakes in Korea.

Methods

The sample was extracted by ion-pair extraction (IPE) method and analyzed by Shimadzu HPLCMSMS 8040. Besides, the Total Daily Intake (TDI) of PFASs and potential risk of human exposure by freshwater fish consumption in several scenarios were investigated.

Results

The greatest total PFASs concentration in each fish tissue was found as 925 ng/mL in a crucian carp (Carassius auratus) for blood, 598 ng/g ww in a Korea piscivorous chub (Opsariichthys uncirostris) for liver, 283 ng/g ww in a crucian carp (Carassius auratus) for egg, and 129 ng/g ww in a skygager (Erythroculter erythropterus) for muscle. The greatest mean concentration of PFOS was determined in blood (38.8 ng/mL), followed by egg (22.0 ng/ww), liver (21.1 ng/g ww) and muscle tissues (1.14 ng/g ww). Addition to fish species and tissues, several other factors such as sex, habitat and fish traits, may affect the bioaccumulation of PFASs in fish. The consumption guideline of one meal per week for skygager is strongly applied for skygager caught from a middle stream of Nakdong River watershed. The total daily intake of PFASs by freshwater fish muscle tissues consumption were ranged from 0 to 12.4 ng/kg b.w./day for PFOS and from 0 to 0.05 ng/kg b.w./ day for PFOA.

Conclusion

This study firstly reports the tissues distribution and human consumption exposure of PFASs in various edible freshwater fish from major rivers and lakes in Korea. The contamination levels of PFOS and PFOA in the fish muscles in this study were unlikely to pose an immediate risk to the Korean general population or Korean freshwater fish consumer population.

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Author information

Authors and Affiliations

  1. College of Fisheries and Ocean Sciences, Chonnam National University, Yeosu, 59626, Republic of Korea

    Mai Duc Hung, Nguyen Hoang Lam, Hui Ho Jeong, Hyeon Ji Jeong, Da Jin Jeong & Hyeon Seo Cho

  2. National Institute of Environmental Research, Incheon, 22689, Republic of Korea

    Gyeong Hwa Park & Pil Jae Kim

  3. College of Chemical Biomolecular & Environmental Engineering in Pusan National University, Pusan, Republic of Korea

    Jeong Eun Oh

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  1. Mai Duc Hung
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Correspondence to Hyeon Seo Cho.

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Perfluoroalkyl Substances (PFASs) in Ten Edible Freshwater Fish Species from Major Rivers and Lakes in Korea: Distribution and Human Exposure by Consumption

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Hung, M.D., Lam, N.H., Jeong, H.H. et al. Perfluoroalkyl Substances (PFASs) in Ten Edible Freshwater Fish Species from Major Rivers and Lakes in Korea: Distribution and Human Exposure by Consumption. Toxicol. Environ. Health Sci. 10, 307–320 (2018). https://doi.org/10.1007/s13530-018-0379-8

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  • DOI: https://doi.org/10.1007/s13530-018-0379-8

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