Spatial distribution and temporal trends of classical and emerging persistent organic pollutants (POPs) in black-tailed gull (Larus crassirostris) eggs from Korea SCIE SCOPUS

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Title
Spatial distribution and temporal trends of classical and emerging persistent organic pollutants (POPs) in black-tailed gull (Larus crassirostris) eggs from Korea
Author(s)
Jang, Mi; Shim, Won Joon; Han, Gi Myung; Ha, Sung Yong; Cho, You Na; Kim, Miran; Hong, Sang Hee
KIOST Author(s)
Jang, Mi(장미)Shim, Won Joon(심원준)Han, Gi Myung(한기명)Ha, Sung Yong(하성용)Cho, You Na(조유나)Hong, Sang Hee(홍상희)
Alternative Author(s)
장미; 심원준; 한기명; 하성용; 조유나; 홍상희
Publication Year
2022-11
Abstract
This study monitored the spatiotemporal trends of persistent organic pollutants (POPs) contamination along the Korean coasts using eggs of the black-tailed gull, a resident bird that occupies a high trophic position in the marine food web. Black-tailed gull eggs were collected from three breeding islands located in the western (Seoman-do), southern (Hong-do), and eastern (Dok-do) seas of Korea during 2015–2019, and egg contents were analyzed for classical and emerging POPs. Among the target analytes, levels of emerging POPs such as brominated flame retardants (BFRs) and perfluoroalkyl acids (PFAAs) were significantly higher in eggs from Seoman-do than other islands. Global positioning system tracking data show that seagulls from Seoman-do traveled frequently to two neighboring major cities (Incheon and Seoul), indicating that the accumulation of BFRs and PFAAs in bird eggs is directly affected by the pollution characteristics of urban areas. Overall, the ratios of PFAA and BFR to the total POPs in eggs from the islands increased over time, while the proportion of classical POPs decreased. A shift from classical POPs to BFRs and PFAAs in seagull eggs was identified. Interestingly, perfluorooctanoic acid (PFOA), which exhibits limited bioaccumulation, was detected at higher levels in eggs from Seoman-do, indicating widespread use of PFOA and maternal transfer to seabird eggs. Continuous monitoring of PFAAs in marine environments of Korea is needed. This study demonstrates that monitoring of seabird eggs is effective for detecting spatial and temporal trends of POPs in the marine environment, and provides insights into emerging POPs such as PFAAs.
ISSN
0048-9697
URI
https://sciwatch.kiost.ac.kr/handle/2020.kiost/43084
DOI
10.1016/j.scitotenv.2022.157244
Bibliographic Citation
Science of the Total Environment, v.845, 2022
Publisher
Elsevier BV
Keywords
Biomonitoring; Egg; Persistent organic pollutants; Seagull; Temporal change
Type
Article
Language
English
Document Type
Article
Publisher
Elsevier BV
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