Cited by 322Per- and polyfluoroalkyl substances researchFluorine in Organic ChemistryEnvironmental Chemistry and Analysis

The DOI matches its Crossref record; 52 of the 53 references it cites were found in a registry or an index; 2 of the 50 sources its claims cite were checked for support.

Short- and long-chain perfluoroalkyl substances in the water, suspended particulate matter, and surface sediment of a turbid river

Open access
Zhao, Pujun, Xia, Xinghui, Dong, Jianwei, Xia, Na, Jiang, Xiaoman, Li, Yang, Zhu, Yuemei·2016·Science of The Total Environment

Abstract

Perfluoroalkyl substances (PFASs) have attracted attentions all around the world. However, little is known about their distribution among water, suspended particulate matter (SPM), and sediment phases in rivers, especially for the short-chain PFASs. In this work, the Yellow River, the largest turbid river in the world, was selected as a case to study eleven kinds of PFASs in the three phases of rivers. These PFASs included C4-C12 perfluorinated carboxylates (PFCAs), perfluorobutyl sulfonate (PFBS), and perfluorooctansulfonate (PFOS), among which C4-C7 PFCAs and PFBS belong to short-chain PFASs, while C8-C12 PFCAs and PFOS belong to long-chain PFASs. The results showed that the total PFAS concentration ranged from 44.7ngL(-1) to 1.52μgL(-1) in the water, from 8.19 to 17.4ngg(-1) in the sediment, and from 3.44 to 14.7ngg(-1) in the SPM. Short-chain PFASs predominated in the water and could reach up to 88.8% of the total PFAS concentration in water, while long-chain PFASs prevailed in the sediment and SPM. The PFAS concentration in SPM showed a significant negative correlation with SPM concentration in river water (p<0.01). The distribution coefficients (Kd) of PFASs between sediment/SPM and water increased with their chain length and there was a positive correlation between logKd and logKow (octanol-water partition coefficients). The total annual flux of all the eleven PFASs was estimated at 3.88tons for the Yellow River into the Bohai Sea, among which the PFOA flux was the highest (0.90tons). The widely occurrence and high concentrations of short-chain PFASs in the Yellow River indicates the shift of manufacturing focus of perfluoroalkyl chemicals from traditional long-chain ones to short-chain ones. Further studies should be conducted to evaluate the eco-environmental risks of these short-chain PFASs in water environments.

Overview

Integrity signals

Registry

Crossref · 10.1016/j.scitotenv.2016.05.221

Cites

52 of 52 references verified0 citation errors · 0 not checkable

Statistics

Nothing to recompute.

Verification

Claims the paper makes

2 of 50 cited sources checked · 1 supported · 0 flagged · accuracy not yet measured

Show all 73 claims

  • Probably not a substantial claim. 24
  • It may state two separate claims as one. 37
52 of 52
  • The paper relies on this without support.

    Little is known about the distribution of short-chain PFASs among water, suspended particulate matter, and sediment in rivers.

    “However, little is known about their distribution among water, suspended particulate matter (SPM), and sediment phases in rivers, especially for the short-chain PFASs.”
    “However, little is known about the distribution of short-chain PFASs among water, SPM, and sediment.”
  • The paper relies on this without support.

    The PFAS concentrations measured during the sampling period are representative of the annual average for estimating annual flux.

    “The total annual flux of all the eleven PFASs was estimated at 3.88 tons for the Yellow River into the Bohai Sea”
  • The paper relies on this without support.

    The Yellow River is a typical case for studying PFAS distribution in turbid rivers.

    “Because the Yellow River is the largest turbid river in the world (Liu et al., 2013), this study took it as a typical case to investigate the PFAS distribution in turbid rivers”
  • The paper relies on this without support.

    The 20 sampling sites are representative of the middle and lower reaches of the Yellow River.

    “Water and sediment samples were collected from 20 sites along the middle and lower reaches of the Yellow River”
  • The paper relies on this without support.

    The 10 sites for suspended particulate matter are representative of the suspended particulate matter in the Yellow River.

    “Due to the low SPM concentration in the overlying water at some sampling sites, enough SPM sample for the determination of PFASs was obtained only from ten sites.”
  • The paper relies on this without support.

    After 2002, some traditional long-chain PFASs were replaced by shorter-chain alternatives.

    “After that, some”
  • The paper relies on this without support.

    PFOS was replaced by PFBS by 3M Company after 2003.

    “For example, PFOS was replaced by perfluorobutane sulfonate (PFBS) by 3M Company after 2003.”
  • The paper relies on this without support.

    No tributaries, industrial wastewater discharges, or domestic sewage enter the Yellow River between Luokou station and the river mouth, and Luokou station is not influenced by seawater.

    “Because there are no tributaries, industrial wastewater discharges and domestic sewage flow into the Yellow River segment between the Luokou station (M12) and the river mouth, and the Luokou station is free from the seawater influence, the flux of PFASs at Luokou can represent the contribution of the river to the sea.”
  • The authors state this as an assumption.

    Annual average PFAS concentrations in the Yellow River are not significantly different from those measured in this study.

    “Thus, it is reasonable to assume that the annual average concentrations of PFASs are not significantly different from the results obtained in this research for the Yellow River, and the total annual mass loadings of PFASs (Ftotal, kg) of the Yellow River can be calculated according to the following equations.”
9 of 9

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Metadata

Authors
Zhao, P., Xia, X., Dong, J., Xia, N., Jiang, X., Li, Y., & Zhu, Y.
Affiliations
Beijing Normal University (CN)
Corresponding author
Xia, Xinghui
Venue
Science of The Total Environment
Publisher
Elsevier BV
Published
2016-10
Volume
568
Pages
57-65
ISSN
0048-9697 (ISSN-L)
OpenAlex
W2409241154
Cited by
322
References
53
Citations by year
2026: 55 · 2025: 64 · 2024: 51 · 2023: 24 · 2022: 41 · 2021: 29 · 2020: 18 · 2019: 15 · 2018: 11 · 2017: 12
FWCI
7.34
Type
journal article
Language
en
Open access
Locations
  • The Science of The Total Environment (acceptedVersion)
  • PubMed (publishedVersion)
Funders
National Natural Science Foundation of China (51325902, 91547207, 51279010, 51421065)
Topics
  • Physical Sciences › Environmental Science › Environmental Chemistry › Per- and polyfluoroalkyl substances research
  • Physical Sciences › Chemistry › Organic Chemistry › Fluorine in Organic Chemistry
  • Physical Sciences › Environmental Science › Environmental Chemistry › Environmental Chemistry and Analysis
Keywords
perfluorinated compounds, short-chain PFASs, perfluorinated carboxylic acids, perfluorooctanoic acid, PFOS, Yellow River, turbid rivers, suspended particulate matter, river sediments, distribution coefficient, octanol-water partition coefficient, Bohai Sea
MeSH terms
China, Environmental Monitoring, Fluorocarbons, Fresh Water, Water Pollutants, Chemical, Geologic Sediments, Rivers, Particulate Matter

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