Spatial distribution of per- and polyfluoroalkyl compounds in coastal waters from the East to South China Sea.
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 ΣPFC 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.
College of Environmental Science and Engineering, Tongji University, Shanghai 200092, China. caiminghong@pric.gov.cn
Minghong
M
Cai
Zhen
Z
Zhao
Haizhen
H
Yang
Zhigao
Z
Yin
Qingquan
Q
Hong
Renate
R
Sturm
Ralf
R
Ebinghaus
Lutz
L
Ahrens
Minggang
M
Cai
Jianfeng
J
He
Zhiyong
Z
Xie
D002681:China; D004784:Environmental Monitoring; D006845:Hydrocarbons, Fluorinated / Q000032:analysis*; D012623:Seawater / Q000737:chemistry*; D014874:Water Pollutants, Chemical / Q000032:analysis*; D014877:Water Pollution, Chemical / Q000706:statistics & numerical data*
D006845:Hydrocarbons, Fluorinated; D014874:Water Pollutants, Chemical