Abstract:
:Per- and polyfluoroalkyl substances (PFASs) have attracted attention due to the potential risk they pose to ecosystems and human health. A total of 169 groundwater samples were collected from four representative regions in order to analyze PFASs concentrations in China. The total concentration of PFASs (∑PFASs) in groundwater ranged from 0.05 to 198.80 ng L-1, with an average of 3.97 ng L-1. All targeted PFASs were detected in the studied areas. The detection frequency and average concentration of perfluorooctanoic acid (PFOA) were the highest (79.29% and 1.61 ng L-1, respectively). The contamination profiles of PFASs in each study area varied due to natural geographical conditions and human activities. According to the results of the potential source identification, the point sources of perfluorooctane sulfonate (PFOS) were mainly concentrated in Lanzhou, and the distribution of PFASs was slightly affected by atmospheric deposition in all the studied areas. The obtained concentrations of PFOA and PFOS may pose no threat to the residents due to water consumption.
journal_name
Environ Monit Assessjournal_title
Environmental monitoring and assessmentauthors
Qiao X,Jiao L,Zhang X,Li X,Hao S,Kong M,Liu Ydoi
10.1007/s10661-019-8005-zsubject
Has Abstractpub_date
2020-01-02 00:00:00pages
76issue
2eissn
0167-6369issn
1573-2959pii
10.1007/s10661-019-8005-zjournal_volume
192pub_type
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