Transport and dispersion of PFOA and PFOS in the Black Sea.

Autor: Miladinova S; European Commission, Joint Research Centre (JRC), Ispra, Italy. Electronic address: svetla@imbm.bas.bg., Garcia-Gorriz E; European Commission, Joint Research Centre (JRC), Ispra, Italy. Electronic address: Elisa.GARCIA-GORRIZ@ec.europa.eu., Macias-Moy D; European Commission, Joint Research Centre (JRC), Ispra, Italy. Electronic address: Diego.MACIAS-MOY@ec.europa.eu., Stips A; European Commission, Joint Research Centre (JRC), Ispra, Italy. Electronic address: Adolf.STIPS@ext.ec.europa.eu.
Jazyk: angličtina
Zdroj: Environmental research [Environ Res] 2024 Jul 01; Vol. 252 (Pt 1), pp. 118100. Date of Electronic Publication: 2024 Jan 03.
DOI: 10.1016/j.envres.2024.118100
Abstrakt: A 3-D transport and dispersion model was applied to study the recent past and future dynamics of perfluorooctanoic acid (PFOA) and perfluorooctane sulfonic acid (PFOS) concentrations in the Black Sea for the 2016-2030 period. The modelled surface concentrations show a distinct seasonal behaviour, shaped by winter to spring convective mixing. A significant increasing long-term trend in PFOS concentrations is established, with concentrations in water layers 200 m below the surface increasing at 4-8% per year. Driving mechanisms for PFOA and PFOS transport and accumulation in the subsurface and deeper layers are the cooling of the surface water in winter and the transport of water masses from the North Western Shelf (NWS) of the Black Sea. A simulated 50% phase-out of PFOA and PFOS from 2020 to 2030 shows a 21% reduction in PFOA, while PFOS continues to increase.
Competing Interests: 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.
(Copyright © 2024. Published by Elsevier Inc.)
Databáze: MEDLINE
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