Investigating the Uptake and Fate of Poly- and Perfluoroalkylated Substances (PFAS) in Sea Ice Using an Experimental Sea Ice Chamber.

ABSTRACT: Poly- and perfluoroalkyl substances (PFAS) are contaminants of emerging Arctic concern and are present in the marine environments of the polar regions. Their input to and fate within the marine cryosphere are poorly understood. We conducted a series of laboratory experiments to investigate the uptake, distribution, and release of 10 PFAS of varying carbon chain length (C₄-C₁₂) in young sea ice grown from artificial seawater (NaClsolution). We show that PFAS are incorporated into bulk sea ice during ice formation and regression analyses for individual PFAS concentrations in bulk sea ice were linearly related to salinity (r² = 0.30 to 0.88, n = 18, p < 0.05). This shows that their distribution is strongly governed by the presence and dyna

SUBMITTER: Garnett J 

PROVIDER: S-EPMC8296678 | biostudies-literature | 2021 Jul

REPOSITORIES: biostudies-literature