Abstract

The spatial distribution of per- and polyfluoroalkyl compounds (PFCs) were investigated in coastal waters collected onboard research vessel Snow Dragon from the East to South China Sea in 2010. All samples were prepared by solid-phase extraction and analyzed using high performance liquid chromatography/negative electrospray ionization-tandem mass spectrometry (HPLC/(-)ESI-MS/MS). Concentrations of 9 PFCs, including C-4 and C-8 (PFBS, PFOS) perfluoroalkyl sulfonate (PFSAs), C-5-C-9 and C-13 (PFPA, PFHxA, PFHpA, PFOA, PFNA, PFTriDA) perfluoroalkyl carboxylates (PFCAs), and N-ethyl perfluorooctane sulfonamide (EtFOSA) were quantified. The Sigma PFC concentrations ranged from 133 pg/L to 3320 pg/L, with PFOA (37.5-1541 pg/L), PFBS (23.0-941 pg/L) and PFHpA (0-422 pg/L) as dominant compounds. Concentrations of PFCs were greater in coastal waters along Shanghai, Ningbo, Taizhou, Xiamen and along coastal cities of the Guangdong province compared to less populated areas along the east Chinese coast. Additionally, the comparison with other seawater PFC measurements showed lower levels in this study. (C) 2011 Elsevier Ltd. All rights reserved.

Keywords

Perfluoroalkyl compounds; Polyfluoroalkyl compounds; PFCs; Coastal waters; East China Sea; South China Sea

Published in

Environmental Pollution
2012, Volume: 161, pages: 162-169
Publisher: ELSEVIER SCI LTD

UKÄ Subject classification

Environmental Sciences
Organic Chemistry
Analytical Chemistry


Publication identifier

DOI: https://doi.org/10.1016/j.envpol.2011.09.045

Permanent link to this page (URI)

https://res.slu.se/id/publ/53676