[Distribution and Fluxes of Perfluoroalkyl and Polyfluoroalkyl Substances in the Middle Reaches of the Yellow River (Weinan-Zhengzhou Section)]

Qi-Lu Li; Xiang-Hui Cheng; Zhen Zhao; Meng-Ran Guo; Meng Yuan; Xia Hua; Xiang-Guang Fang; Hong-Wen Sun

doi:10.13227/j.hjkx.201805240

[Distribution and Fluxes of Perfluoroalkyl and Polyfluoroalkyl Substances in the Middle Reaches of the Yellow River (Weinan-Zhengzhou Section)]

Huan Jing Ke Xue. 2019 Jan 8;40(1):228-238. doi: 10.13227/j.hjkx.201805240.

[Article in Chinese]

Authors

Qi-Lu Li^{1

2}, Xiang-Hui Cheng¹, Zhen Zhao³, Meng-Ran Guo¹, Meng Yuan¹, Xia Hua³, Xiang-Guang Fang³, Hong-Wen Sun³

Affiliations

¹ Key Laboratory for Yellow River and Huai River Water Environment and Pollution Control, Ministry of Education, Henan Key Laboratory for Environmental Pollution Control, School of Environment, Henan Normal University, Xinxiang 453007, China.
² State Key Laboratory of Organic Geochemistry, Guangzhou Institute of Geochemistry, Chinese Academy of Sciences, Guangzhou 510640, China.
³ Key Laboratory of Pollution Processes and Environment Criteria, Ministry of Education, College of Environmental Science and Engineering, Nankai University, Tianjin 300350, China.

PMID: 30628279
DOI: 10.13227/j.hjkx.201805240

Abstract

Surface water samples were collected in the middle reaches of the Yellow River (Weinan-Zhengzhou section) and all 28 perfluoroalkyl and polyfluoroalkyl substance (PFAS) levels were measured using high-performance liquid chromatography-tandem mass spectrometry (HPLC-MS/MS). The results show that the levels of PFASs in the water and particle phase are 18.4-56.9 ng·L^-1 and 26.8-164 ng·g^-1, respectively. Perfluorohexanoic acid (PFHxA) in the water and particle phases is the main pollutant, accounting for 27% and 16% of the total concentrations, respectively, and 3H-perfluoro-3-[(3-methoxy-propoxy)-propanoate] acid (ADONA) and chlorinated polyfluorinated ethersulfonic acids (6:2 and 8:2 Cl-PFESA) were detected in the particle phase, indicating that the use of PFAS alternatives gradually increases. The lgK_d of PFASs between the water and particle phase ranges from 2.95±0.553 (PFPeA) to 3.85±0.237 (8:2 FTUCA)and the adsorption of fluorotelomer carboxylic acids (FTCAs) and fluorotelomer unsaturated carboxylic acids (FTUCAs) on particulate matter increases with increasing of carbon chain length. Perfluoroalkane sulfonic acids (PFSAs) are more easily adsorbed by particulate matter than perfluoroalkyl carboxylic acids (PFCAs). The fluxes of PFASs in the Weinan-Zhengzhou section of the Yellow River show a decrease at first and then increase, indicating that this section receives pollution inputs from the upstream and tributaries. In addition, the results show that the fluxes of PFASs in the water phase are greater than those in the particle phase.

Keywords: Yellow River; alternative; flux; partition coefficient; perfluoroalkyl and polyfluoroalkyl substances (PFASs).

Publication types

English Abstract