Publication Details |
| Category | Text Publication |
| Reference Category | Journals |
| DOI | 10.1016/j.scitotenv.2021.146970 |
| Document | accepted manuscript |
| Title (Primary) | Perfluoroalkyl substances (PFASs) in the Ugandan waters of Lake Victoria: Spatial distribution, catchment release and public exposure risk via municipal water consumption |
| Author | Arinaitwe, K.; Keltsch, N.; Taabu-Munyaho, A.; Reemtsma, T.; Berger, U. |
| Source Titel | Science of the Total Environment |
| Year | 2021 |
| Department | ANA |
| Volume | 783 |
| Page From | art. 146970 |
| Language | englisch |
| Topic | T9 Healthy Planet |
| Keywords | Perfluoroalkyl substances; Lake Victoria; Catchment drainage; Urban discharge; Human exposure; Atmospheric deposition |
| Abstract | Perfluoroalkyl substances (PFASs) have scarcely been studied in the Lake Victoria Basin and Africa in general. We investigated spatial profiles of PFASs in the Ugandan part of Lake Victoria, their influxes and human exposure via drinking water. We analyzed open lake water, riverine water (Rivers Kagera and Sio), urban drainage water (Nakivubo Channel), over-lake bulk atmospheric deposition and municipal tap water (Kampala, Jinja and Entebbe). The average concentrations (ng/L) for individual target PFASs were in the ranges of 0.08–23.8 (Nakivubo Channel), 0.01–10.8 (Murchison Bay), <MDL-5.38 (Kampala tap water), 0.01–3.64 (R. Kagera), <MDL-3.56 (Jinja tap water), <MDL-3.35 (R. Sio), <MDL-1.96 (Entebbe tap water), <MDL-1.46 (open lake) and <MDL-1.00 (atmospheric deposition). Estimated contribution of input pathways to ∑PFAS fluxes into Lake Victoria was in the order atmospheric deposition > R. Kagera, >R. Sio > Nakivubo Channel. Perfluorohexanoic acid (PFHxA) and perfluorooctane sulfonic acid (PFOS) had the highest influx and retention estimates, respectively. Perfluoroalkane sulfonates (PFSAs) were mostly associated with urban drainage samples. PFASs were likely recycled from the Nakivubo Channel, through the Murchison Bay, into municipal drinking water. The estimated human exposure to ∑11PFASs via drinking water indicated low risk of adverse health effects. |
| Persistent UFZ Identifier | https://www.ufz.de/index.php?en=20939&ufzPublicationIdentifier=24495 |
| Arinaitwe, K., Keltsch, N., Taabu-Munyaho, A., Reemtsma, T., Berger, U. (2021): Perfluoroalkyl substances (PFASs) in the Ugandan waters of Lake Victoria: Spatial distribution, catchment release and public exposure risk via municipal water consumption Sci. Total Environ. 783 , art. 146970 10.1016/j.scitotenv.2021.146970 |
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