PMID- 35817107 OWN - NLM STAT- MEDLINE DCOM- 20220908 LR - 20220908 IS - 1879-1026 (Electronic) IS - 0048-9697 (Linking) VI - 845 DP - 2022 Nov 1 TI - Spatial distribution and temporal trends of classical and emerging persistent organic pollutants (POPs) in black-tailed gull (Larus crassirostris) eggs from Korea. PG - 157244 LID - S0048-9697(22)04342-X [pii] LID - 10.1016/j.scitotenv.2022.157244 [doi] AB - 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. CI - Copyright (c) 2022 Elsevier B.V. All rights reserved. FAU - Jang, Mi AU - Jang M AD - Oil and POPs Research Group, Korea Institute of Ocean Science and Technology, Geoje 53201, Republic of Korea. FAU - Shim, Won Joon AU - Shim WJ AD - Oil and POPs Research Group, Korea Institute of Ocean Science and Technology, Geoje 53201, Republic of Korea; Ocean Science, University of Science and Technology, Daejeon 34113, Republic of Korea. FAU - Han, Gi Myung AU - Han GM AD - Oil and POPs Research Group, Korea Institute of Ocean Science and Technology, Geoje 53201, Republic of Korea. FAU - Ha, Sung Yong AU - Ha SY AD - Oil and POPs Research Group, Korea Institute of Ocean Science and Technology, Geoje 53201, Republic of Korea. FAU - Cho, Youna AU - Cho Y AD - Oil and POPs Research Group, Korea Institute of Ocean Science and Technology, Geoje 53201, Republic of Korea; Ocean Science, University of Science and Technology, Daejeon 34113, Republic of Korea. FAU - Kim, Miran AU - Kim M AD - Seabirds Lab. of Korea, Wonju 26353, Republic of Korea. FAU - Hong, Sang Hee AU - Hong SH AD - Oil and POPs Research Group, Korea Institute of Ocean Science and Technology, Geoje 53201, Republic of Korea; Ocean Science, University of Science and Technology, Daejeon 34113, Republic of Korea. Electronic address: shhong@kiost.ac.kr. LA - eng PT - Journal Article DEP - 20220709 PL - Netherlands TA - Sci Total Environ JT - The Science of the total environment JID - 0330500 RN - 0 (Environmental Pollutants) RN - 0 (Flame Retardants) SB - IM MH - Animals MH - Birds MH - *Charadriiformes MH - Eggs/analysis MH - Environmental Monitoring MH - *Environmental Pollutants/analysis MH - *Flame Retardants MH - Persistent Organic Pollutants OTO - NOTNLM OT - Biomonitoring OT - Egg OT - Persistent organic pollutants OT - Seagull OT - Temporal change COIS- Declaration of competing interest The authors declare that they have no known competing financial interests or personal relationships that could have appeared to influence the work reported in this paper. EDAT- 2022/07/12 06:00 MHDA- 2022/09/09 06:00 CRDT- 2022/07/11 19:23 PHST- 2022/03/24 00:00 [received] PHST- 2022/06/24 00:00 [revised] PHST- 2022/07/05 00:00 [accepted] PHST- 2022/07/12 06:00 [pubmed] PHST- 2022/09/09 06:00 [medline] PHST- 2022/07/11 19:23 [entrez] AID - S0048-9697(22)04342-X [pii] AID - 10.1016/j.scitotenv.2022.157244 [doi] PST - ppublish SO - Sci Total Environ. 2022 Nov 1;845:157244. doi: 10.1016/j.scitotenv.2022.157244. Epub 2022 Jul 9.