Presence and sources of per- and polyfluoroalkyl substances (PFASs) in the three major rivers on Hainan Island
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60460709%3A41330%2F25%3A102064" target="_blank" >RIV/60460709:41330/25:102064 - isvavai.cz</a>
Result on the web
<a href="https://doi.org/10.1016/j.envres.2024.120590" target="_blank" >https://doi.org/10.1016/j.envres.2024.120590</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1016/j.envres.2024.120590" target="_blank" >10.1016/j.envres.2024.120590</a>
Alternative languages
Result language
angličtina
Original language name
Presence and sources of per- and polyfluoroalkyl substances (PFASs) in the three major rivers on Hainan Island
Original language description
Per- and polyfluoroalkyl substances (PFASs) have attracted considerable attention because of their toxicity, persistence and bioaccumulation potential. With the construction of the Hainan Free Trade Port and the rapid development of economy, environmental pollution on Hainan Island is becoming increasingly prominent. PFASs have been detected in the seawater and sediments of mangrove ecosystems on Hainan Island. As the receiving water of wastewater treatment plants (WWTPs) and industrial wastewater, rivers are inevitably contaminated by PFASs. However, few studies have focused on PFAS pollution in three large rivers (the Nandu, Changhua, and Wanquan rivers) on Hainan Island. In the present study, the pollution status, potential sources, and ecological risks of PFASs in these three major rivers were explored. Perfluorobutanonic acid (PFBA) (48.7%) was found to be the major PFASs in the surface waters, and perfluoroundecanoic acid (PFUnDA) (19.7%) was the major PFASs in the sediments of the three major rivers. The concentrations of & sum;PFASs in the upper-midstream region were low due to minimal human influence and increased in the middle-lower reaches with increasing industrial activity and urbanization, whereas decreased at downstream sites near estuaries where river water was diluted with seawater. WWTP effluent, industrial wastewater discharge, the application and discharge of aqueous firefighting foam, storm runoff and landfill leachate were the major sources of PFASs in the three major rivers. In surface water, perfluorooctanoic acid (PFOA), perfluorooctane sulfonamide (PFOSA) and perfluorooctadecanoic acid (PFODA) posed low-moderate risks at 5.71-85.6% of the sampling sites. PFASs in the sediment posed no ecological risk. This study provides key data regarding the pollution status and potential sources of PFASs in large rivers on subtropical islands.
Czech name
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Czech description
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Classification
Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
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OECD FORD branch
10511 - Environmental sciences (social aspects to be 5.7)
Result continuities
Project
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Continuities
S - Specificky vyzkum na vysokych skolach
Others
Publication year
2025
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
Environmental Research
ISSN
0013-9351
e-ISSN
0013-9351
Volume of the periodical
266
Issue of the periodical within the volume
FEB 1 2025
Country of publishing house
US - UNITED STATES
Number of pages
15
Pages from-to
115-0
UT code for WoS article
001395733300001
EID of the result in the Scopus database
2-s2.0-85212399655