PMID- 34100289 OWN - NLM STAT- MEDLINE DCOM- 20210712 LR - 20210712 IS - 1520-5851 (Electronic) IS - 0013-936X (Linking) VI - 55 IP - 13 DP - 2021 Jul 6 TI - Nontarget Screening of Organohalogen Compounds in the Liver of Wild Birds from Osaka, Japan: Specific Accumulation of Highly Chlorinated POP Homologues in Raptors. PG - 8691-8699 LID - 10.1021/acs.est.1c00357 [doi] AB - Nontarget screening studies have recently revealed the accumulation of typically unmonitored organohalogen compounds (OHCs) in various marine animals, but information for terrestrial food chains is still lacking. This study investigated the accumulation profiles of known and unknown OHCs in the liver of representative wild bird specimens from Osaka, Japan using nontarget analysis based on two-dimensional gas chromatography-time-of-flight mass spectrometry. A large number of unmonitored OHCs were identified, including anthropogenic contaminants and marine halogenated natural products (HNPs), and their accumulation profiles were considered to be influenced by terrestrial and brackish water-based diets. Anthropogenic OHCs were highly accumulated in terrestrial predator species (peregrine falcon, hawks, and black kite), and some unmonitored highly chlorinated contaminants reached the levels of microgram per gram lipid in the liver, i.e., C(10)-/C(15)-based chlordane related compounds (CHLs) and their epoxides, dichlorodiphenyldichloroethylene (DDE) homologues, and polychlorinated terphenyls (PCTs). In contrast, HNPs were accumulated at higher levels in piscivorous birds (gray heron and common cormorant). Considering the enrichment of the unmonitored C(10)-/C(15)-based CHLs, PCTs, and DDE homologues relative to structurally similar persistent organic pollutants (POPs) in high trophic-level species such as raptors, further studies are needed to elucidate their environmental levels, behavior in terrestrial food chains, and ecotoxicological impacts. FAU - Tue, Nguyen Minh AU - Tue NM AUID- ORCID: 0000-0002-6197-6731 AD - Center for Marine Environmental Studies (CMES), Ehime University, 2-5 Bunkyo-cho, Matsuyama 790-8577, Japan. FAU - Goto, Akitoshi AU - Goto A AD - Center for Marine Environmental Studies (CMES), Ehime University, 2-5 Bunkyo-cho, Matsuyama 790-8577, Japan. FAU - Fumoto, Mitsuo AU - Fumoto M AD - Center for Marine Environmental Studies (CMES), Ehime University, 2-5 Bunkyo-cho, Matsuyama 790-8577, Japan. FAU - Nakatsu, Susumu AU - Nakatsu S AD - Nakatsu Veterinary Surgery, 2-2-15 Shorinjichonishi, Sakai 590-0960, Japan. FAU - Tanabe, Shinsuke AU - Tanabe S AD - Center for Marine Environmental Studies (CMES), Ehime University, 2-5 Bunkyo-cho, Matsuyama 790-8577, Japan. FAU - Kunisue, Tatsuya AU - Kunisue T AUID- ORCID: 0000-0002-8167-1564 AD - Center for Marine Environmental Studies (CMES), Ehime University, 2-5 Bunkyo-cho, Matsuyama 790-8577, Japan. LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't DEP - 20210608 PL - United States TA - Environ Sci Technol JT - Environmental science & technology JID - 0213155 RN - 0 (Environmental Pollutants) RN - 0 (Hydrocarbons, Chlorinated) RN - DFC2HB4I0K (Polychlorinated Biphenyls) SB - IM MH - Animals MH - Birds MH - Environmental Monitoring MH - *Environmental Pollutants/analysis MH - *Hydrocarbons, Chlorinated MH - Japan MH - Liver/chemistry MH - *Polychlorinated Biphenyls MH - *Raptors OTO - NOTNLM OT - birds OT - chlordane OT - nontarget analysis OT - organohalogens OT - terrestrial animals EDAT- 2021/06/09 06:00 MHDA- 2021/07/13 06:00 CRDT- 2021/06/08 08:35 PHST- 2021/06/09 06:00 [pubmed] PHST- 2021/07/13 06:00 [medline] PHST- 2021/06/08 08:35 [entrez] AID - 10.1021/acs.est.1c00357 [doi] PST - ppublish SO - Environ Sci Technol. 2021 Jul 6;55(13):8691-8699. doi: 10.1021/acs.est.1c00357. Epub 2021 Jun 8.