Within- and Among-clutch Variation of Yolk Perfluoroalkyl Acids (PFAAs) in a Seabird from the Northern Adriatic Sea
Parolini, M; Cappelli, F; De Felice, B; Possenti, CD; Rubolini, D; Valsecchi, S; Polesello, S; ,
| HERO ID | 6833681 |
|---|---|
| In Press | No |
| Year | 2020 |
| Title | Within- and Among-clutch Variation of Yolk Perfluoroalkyl Acids (PFAAs) in a Seabird from the Northern Adriatic Sea |
| Authors | Parolini, M; Cappelli, F; De Felice, B; Possenti, CD; Rubolini, D; Valsecchi, S; Polesello, S; , |
| Journal | Environmental Toxicology and Chemistry |
| Volume | 40 |
| Issue | 3 |
| Page Numbers | 744-753 |
| Abstract | Perfluoroalkyl substances (PFAS) are surface-active agents used in diverse industrial and commercial applications. PFAS contaminate both freshwater and marine ecosystems, are highly persistent and accumulate through trophic transfer. Seabirds are exposed to environmental contaminants due of their high trophic position in food webs and relatively long lifespan. We measured levels of ten perfluoroalkyl acids (PFAAs) in egg yolks of yellow-legged gulls (Larus michahellis) breeding in the northern Adriatic sea (NE Italy). We examined PFAAs variation within clutches (between eggs of different laying order) and among clutches. Perfluorooctane sulfonate (PFOS) was the most abundant yolk PFAA (mean = 42.0 ng/g wet weight), followed by perfluorooctanoic acid (PFOA; 3.8 ng/g ww) and perfluorododecanoic acid (PFDoDa; 2.8 ng/g ww). ƩPFAAs averaged57.4 ng/g ww, ranging between 26.5 and 115.0 ng/g ww. PFAA levels varied substantially among clutches (0.29 - 0.79 of total variation), whereas the effects of laying order were considerably weaker (0.01 - 0.13). Egg laying order effects were detected for ƩPFAAs, PFOS, perfluorononanoic acid (PFNA), perfluorodecanoic acid (PFDA), perfluoroundecanoic acid (PFUnA) and PFDoDa, whereby the last-laid eggs exhibited lower PFAAs concentrations than early-laid eggs. Our results indicate that seagulls from the northern Adriatic basin deposit measurable amounts of PFAAs in their eggs. The large among-clutches differences in PFAAs suggest that exposure of yellow-legged gull females to these compounds is highly variable. This article is protected by copyright. All rights reserved. |
| Doi | 10.1002/etc.4833 |
| Pmid | 32833265 |
| Wosid | WOS:000566822900001 |
| Url | https://www.proquest.com/scholarly-journals/within-among-clutch-variation-yolk-perfluoroalkyl/docview/2551991397/se-2?accountid=171501 |
| Is Certified Translation | No |
| Dupe Override | No |
| Comments | Scopus URL: https://www.scopus.com/inward/record.uri?eid=2-s2.0-85090432261&doi=10.1002%2fetc.4833&partnerID=40&md5=6c17ef9e82bee8b752fa22e8eeea0fc2 |
| Is Public | Yes |
| Language Text | English |
| Keyword | Egg yolk; Larus michahellis; Laying order; Perfluoroalkyl acids |
| Relationship(s) |
|