Contamination profiles of perfluoroalkyl substances in five typical rivers of the Pearl River Delta region, South China
Abstract
A survey on contamination profiles of eighteen perfluoroalkyl substances (PFASs) was performed via high performance liquid chromatography-tandem mass spectrometry for surface water and sediments from five typical rivers of the Pearl River Delta region, South China in summer and winter in 2012. The total concentrations of the PFASs in the water phase of the five rivers ranged from 0.14 to 346.72 ng L(-1). The PFAS concentrations in the water phase were correlated positively to some selected water quality parameters such as chemical oxygen demand (COD) (0.7913) and conductivity (0.5642). The monitoring results for the water samples showed significant seasonal variations, while those for the sediment samples showed no obvious seasonal variations. Among the selected 18 PFASs, perfluorooctane sulfonic acid (PFOS) was the dominant PFAS compound both in water and sediment for two seasons with its maximum concentration of 320.5 ng L(-1) in water and 11.4 ng g(-1) dry weight (dw) in sediment, followed by perfluorooctanoic acid (PFOA) with its maximum concentration of 26.48 ng L(-1) in water and 0.99 ng g(-1) dw in sediment. PFOS and PFOA were found at relatively higher concentrations in the Shima River and Danshui River than in the other three rivers (Xizhijiang River, Dongjiang River and Shahe River). The principal component analysis for the PFASs concentrations in water and sediment separated the sampling sites into two groups: rural and agricultural area, and urban and industrial a…
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PFAS have been detected in treated drinking water, groundwater, oceans, lakes, rivers and other surface water bodies, rainwater, snow, municipal sewage, biosolids, landfill leachate, and biota in surface water bodies.
“PFAS have been detected in treated drinking water, groundwater, oceans, lakes, rivers and other surface water bodies, rainwater, snow, municipal sewage, biosolids, landfill leachate, and many other environmental media such as biota in the surface water bodies (Hamid et al., 2018; Pan et al., 2014; Sammut et al., 2017; Yang et al., 2011).”
From Per and poly-fluoroalkyl substances (PFAS) as a contaminant of emerging concern in surface water: A transboundary review of their occurrences and toxicity effects (2021) · cites this paper as Pan et al., 2014
Short-chain PFAS (PFHxA, PFBS) were prevalent in the Jiulong River estuary and Yangtze River estuary in China.
“Similar observations were reported in the study by Cai et al. (2018) and Pan et al. (2014) in the Jiulong River estuary and Yangtze River estuary in China, where short-chain PFAS (PFHxA, PFBS) were prevalent.”
From Per and poly-fluoroalkyl substances (PFAS) as a contaminant of emerging concern in surface water: A transboundary review of their occurrences and toxicity effects (2021) · cites this paper as Pan et al., 2014
The upper limit of combined PFOA and PFOS concentrations in Pearl River delta samples was significantly higher than 70 ng/L, which can potentially cause serious health concerns.
“Thus, the upper limit of combined PFOA and PFOS concentrations was then significantly higher than 70 ng/L, which can potentially cause serious health concerns.”
From Per and poly-fluoroalkyl substances (PFAS) as a contaminant of emerging concern in surface water: A transboundary review of their occurrences and toxicity effects (2021) · cites this paper as Pan et al. (2014)
Pan et al. (2014) observed PFOA and PFOS concentrations ranging from 0.11 to 26.5 ng/L and below detection limit to 320.5 ng/L, respectively, in samples collected along Pearl River delta in 2010.
“Pan et al. (2014) observed high PFOA and PFOS concentrations ranging from 0.11 to 26.5 ng/L and below detection limit to 320.5 ng/L, respectively in the samples collected along Pearl River delta in 2010.”
From Per and poly-fluoroalkyl substances (PFAS) as a contaminant of emerging concern in surface water: A transboundary review of their occurrences and toxicity effects (2021) · cites this paper as Pan et al. (2014)
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References 41 · Cited by 121
- Authors
- Pan, C.-G., Ying, G.-G., Liu, Y.-S., Zhang, Q.-Q., Chen, Z.-F., Peng, F.-J., & Huang, G.-Y.
- Affiliations
- Chinese Academy of Sciences (CN)
- Corresponding author
- Ying, Guang-Guo
- Venue
- Chemosphere
- Publisher
- Elsevier BV
- Published
- 2014-11
- Volume
- 114
- Pages
- 16-25
- ISSN
- 0045-6535 (ISSN-L)
- OpenAlex
- W2021904287
- Cited by
- 121
- References
- 41
- Citations by year
- 2026: 13 · 2025: 22 · 2024: 13 · 2023: 6 · 2022: 15 · 2021: 12 · 2020: 9 · 2019: 8 · 2018: 2 · 2017: 8 · 2016: 6 · 2015: 6
- FWCI
- 5.07
- Type
- journal article
- Language
- en
- Open access
- closed
- Locations
- Chemosphere (publishedVersion)
- PubMed (publishedVersion)
- Funders
- National Natural Science Foundation
- National Water Pollution Control Program of China
- Topics
- Physical Sciences › Environmental Science › Environmental Chemistry › Per- and polyfluoroalkyl substances research
- Physical Sciences › Environmental Science › Health, Toxicology and Mutagenesis › Toxic Organic Pollutants Impact
- Life Sciences › Pharmacology, Toxicology and Pharmaceutics › Pharmaceutical Science › Fluorine in Organic Chemistry
- Keywords
- perfluorinated compounds, PFAS contamination, surface water, river sediments, Pearl River Delta, PFOS, perfluorooctanoic acid, seasonal variation, source apportionment, industrial pollution
- MeSH terms
- Caprylates, China, Environmental Monitoring, Fluorocarbons, Water Pollutants, Chemical, Alkanesulfonic Acids, Geologic Sediments, Rivers
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