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This dataset includes the concentration and distribution data of poly- and perfluoroalkyl substances (PFAS) in the Yarlung Tsangpo River and three major rivers in Hengduan Mountain region. The samples were collected in 2020 and 2021 from 83 locations in four major rivers, including the Yarlung Tsangpo, Nu, Lancang and Jinsha Rivers. The water samples were prepared by solid phase extraction, purification, concentration steps, and then determined by HPLC (ThermoFisher Scientific, USA) coupled to a TSQ Quantiva triple quadrupole mass spectrometer. The target compounds included 10 perfluorinated carboxylic acids (PFCAs) and 3 perfluorinated sulfonic acids (PFSAs). Specifically, perfluorobutanoic acid

(PFBA), perfluoropentanoic acid (PFPeA), perfluorohexanoic acid (PFHxA), perfluoroheptanoic acid (PFHpA), perfluorooctanoic acid (PFOA),perfluorononanoic acid (PFNA), perfluorodecanoic acid (PFDA), perfluoroundecanoic acid (PFUnDA), perfluorododecanoic acid (PFDoA) and perfluorotridecanoic acid (PFTrA), perfluorobutanesulfonic acid (PFBS), perfluorohexanesulfonic acid (PFHxS), and perfluorooctanesulfonic acid (PFOS). In the process of sample pretreatment, isotope labeled recovery standards were added, and the sample recovery was calculated to be between 53% and 96%. Conventional water quality test parameters include temperature, dissolved oxygen, pH, conductivity, salinity, and dissolved organic carbon. The accuracy of the parameters were 0.1℃, 0.01mg/L, 0.01, 0.1μS/cm, 0.01ppt and 0.01mg/L, respectively. Among them, the dissolved organic carbon was measured by TOC analyzer, and the other water quality parameters were measured by YSI ProPlus portable multi-parameter water quality instrument. This dataset can provide a scientific basis for mapping the spatial distribution of organic pollution over the Tibetan Plateau and assessing the water quality safety of water towers in Asia.

File naming and required software

The data set was named as Dataset of PFAAs in the major rivers of the Tibetan Plateau2022. It was stored in Excel format and contained 5 sub-tables. 1. Longitude and latitude of sampling sites and water quality parameters of river water; 2. Concentration summary of main perfluoroalkyl acids in Yajiang River water (pg/L); 3. Concentration summary of main perfluorinated compounds in Nujiang River water (pg/L); 4. Concentration summary of main perfluorinated compounds in Lancang River water (pg/L); 5. Summary of main perfluorinated compounds concentration in Jinsha River water (pg/L).

Data Citations Data citation guideline What's data citation?

Ren, J., Wang, X. (2022). Spatial distribution data set of perfluoroalkyl acids (PFAAs) in the major rivers of the Tibetan Plateau（2020-2021）. A Big Earth Data Platform for Three Poles, DOI: 10.11888/HumanNat.tpdc.272894. CSTR: 18406.11.HumanNat.tpdc.272894. (Download the reference： RIS | Bibtex )

1. Ren, J., Yu, M.J., Chen, F., Cui, L., Zhang, Y.Z., Li, J.M., Chen, M.K., Wang, X.P., Fu, J.J. (2023). Occurrence, spatial heterogeneity, and risk assessment of perfluoroalkyl acids (PFAAs) in the major rivers of the Tibetan Plateau. Science of The Total Environment, 856, 159026.( View Details | Bibtex)

Using this data, the data citation is required to be referenced and the related literatures are suggested to be cited.

Support Program

Second Tibetan Plateau Scientific Expedition Program

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License： This work is licensed under an Attribution 4.0 International (CC BY 4.0)

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