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6315723 
Journal Article 
Occurrence and trophic transfer of per- and polyfluoroalkyl substances in an Antarctic ecosystem 
Gao, K; Miao, X; Fu, J; Chen, Y; Li, H; Pan, W; Fu, J; Zhang, Q; Zhang, A; Jiang, G 
2020 
Yes 
Environmental Pollution
ISSN: 0269-7491
EISSN: 1873-6424 
Elsevier 
257 
Elsevier 
113383 
English 
Information on the occurrence and trophodynamics of per- and polyfluoroalkyl substances (PFASs) in the Antarctic region is limited. We investigated the occurrence of PFASs in an ecosystem in the Fildes Peninsula at King George Island and Ardley Island, Antarctica. The profiles, spatial distribution, and trophic transfer behavior of PFASs were further studied. ∑PFASs ranged from 0.50 ± 38.0 ng/g dw (dry weight) in algae to 4.97 ± 1.17 ng/g dw in Neogastropoda (Ngas), which was lower than those in the low- and mid-latitude regions and even Arctic regions. Perfluorobutyric acid (PFBA) was predominant with detection frequencies above 50% in all types of samples, and the relative contribution of PFBA ranged from 22% to 57% in the biota samples. The biomagnification factors of PFBA, perfluoroheptanoate (PFHpA), perfluorohexane sulfonate (PFHxS), and perfluorooctane sulfonate (PFOS) between Archaeogastropoda (Agas) and Ngas were 0.67 ± 0.54, 0.77 ± 0.38, 1.04 ± 1.56, 3.30 ± 4.07, and 1.61 ± 0.89, respectively. The trophic magnification factors of PFHxS and PFOS were 2.09 and 2.92, respectively, which indicated that they could be biomagnified through the food chain. Considering the increasing production and uncertain toxicological risks of emerging PFASs and the sensitive ecosystems in Antarctic regions, more attention should be paid, especially for the short-chain ones in the Antarctic region. 
Antarctic ecosystem; Trophic transfer; Per- and polyfluoroalkyl substances; Perfluorobutyric acid (PFBA); Biomagnification 
• PFBA
     LitSearch: May 2019 - May 2020
          PubMed
          WoS
• PFHxS
     LitSearch: May 2019 - May 2020
          PubMed
          WoS
• PFOA (335-67-1) and PFOS (1763-23-1)
     LitSearch: Feb 2019 - May 2020
          WoS
          PubMed