The Science of The Total Environment, Journal Year: 2024, Volume and Issue: 933, P. 173245 - 173245
Published: May 14, 2024
The present study has investigated per- and poly-fluoroalkyl substances (PFAS) in the gill tissues of various fish species inhabiting different trophic levels within Eleyele Lake, a tropical freshwater lake Nigeria. mean concentrations PFAS congeners were determined, their trends patterns analyzed across species. results revealed variations congener abundance species-specific that was influenced by habitat niche preferences. Multivariate associations using canonical-correlation analysis (CCA) distinct relationships between specific groups. strongest observed pelagic omnivore (Oreochromic niloticus: ON) with positive for 4:2 FTS, 9CL-PF3ONS, PFTDA, MeFOSA PFHxS. differences profiles two herbivorous (Sarotherodon melanotheron (SM) Coptodon galilaeus (CG)) reflect possible divergence microhabitat Furthermore, overlaps herbivore (CG), benthic (Clarias gariepinus: ClG) indicate overlap. Our provides valuable insights into dynamics at Lake. However, dissimilarity overlapping profile gills reflects interplay preference associations. highlights need further research to assess ecological risks develop effective management strategies.
Language: Английский
Citations
8
Chemosphere, Journal Year: 2024, Volume and Issue: 359, P. 142231 - 142231
Published: May 6, 2024
Language: Английский
Citations
5
Environmental Monitoring and Assessment, Journal Year: 2024, Volume and Issue: 196(6)
Published: May 23, 2024
Language: Английский
Citations
5
Marine Pollution Bulletin, Journal Year: 2024, Volume and Issue: 208, P. 117040 - 117040
Published: Oct. 3, 2024
Language: Английский
Citations
5
The Science of The Total Environment, Journal Year: 2025, Volume and Issue: 959, P. 178323 - 178323
Published: Jan. 1, 2025
Language: Английский
Citations
0
Micromachines, Journal Year: 2025, Volume and Issue: 16(3), P. 313 - 313
Published: March 7, 2025
Triboelectric nanogenerators (TENGs) can convert the mechanical energy of physical activities into electricity. This is particularly useful in sports applications, where activity power devices such as wearables that provide real-time feedback on athletes’ performance or health. To work, a TENG usually needs tribopositive and tribonegative materials. Currently, vast majority TENGs use materials containing perfluoroalkyl polyfluoroalkyl substances (PFAS) However, these pose risks to humans environment, which has led European Union consider restrictions compounds. For this reason, PFAS-free alternatives, polydimethylsiloxane (PDMS) MXenes, need be better explored replace PFAS while aiming achieve equal efficiency. review will explore some recent advances have been developed field TENGs, with an emphasis applications.
Language: Английский
Citations
0
Bulletin of Environmental Contamination and Toxicology, Journal Year: 2025, Volume and Issue: 114(4)
Published: March 27, 2025
Abstract Per- and polyfluoroalkyl substances (PFAS) are persistent environmental contaminants widely detected in water sediment worldwide. Despite growing concerns about their ecological health risks, distribution African aquatic environments remains understudied. This study addresses the knowledge gap PFAS contamination by analysing spatial temporal of 18 Apies River Pretoria, South Africa. Surface samples were collected upstream downstream during dry seasons. The analysis concentrations was conducted using liquid chromatography-tandem mass spectrometry. Statistical analysis, including paired t-tests, non-metric multidimensional scaling, hierarchical cluster applied to determine trends. revealed significant variations contamination, with locations consistently exhibiting higher than downstream. In surface samples, L_PFBS, 4:2 FTS, 6:2 L_PFHpS showed statistically differences ( p < 0.05) between sites. Perfluorocarboxylic acids dominant class (50.47–57.15%), whereas perfluorosulfonic more prevalent sediments. Upstream had (43.00 ng/g), L_PFDS (38.89 L_PFHxS (23.91 ng/g) (31.96, 27.84, 18.02 ng/g, respectively). findings reveal sources partitioning sediments, aiding quality management pollution mitigation strategies.
Language: Английский
Citations
0
Marine Environmental Research, Journal Year: 2025, Volume and Issue: unknown, P. 107117 - 107117
Published: March 1, 2025
We investigated the occurrence, species-specific distribution, accumulation, and biomagnification of poly- perfluoroalkyl substances (PFAS) in three teleost fish species (Sarotherodon melanotheron, Clarias gariepinus, Chrysicthys nigrodigitatus), as well molluscs (Pachymelania aurita), earthworms (Lumbricus terrestris), sediment samples from Ologe Lagoon Nigeria, which receives complex mixtures anthropogenic effluents various sources. Total ∑PFAS concentrations (ng/g) were significantly highest (16.2), compared to (S. melanotheron (1.8), C. gariepinus (1.2), nigrodigitatus (1.8)) (0.4). The novel precursor diSAMPAP was dominant PFAS congener S. while PFOS nigrodigitatus. In earthworms, molluscs, sediment, diSAMPAP, PFBS, PFAS. calculated biota accumulation factor (BSAF), revealing that 8:2 FTS exhibited BSAF values. Species-specific differences (BMF) suggest varying exposure routes among examined species. Notably, liver higher than flesh tissues for nigrodigitatus, indicating organ-specific accumulation. Risk analysis using Risk21 tool showed had public health risk, least risk. Our results highlight significant food safety concerns risks associated with FTS, its aquatic webs. This study contributes valuable insights global monitoring efforts, particularly fluvial tropical ecosystems such those found Nigeria.
Language: Английский
Citations
0
Environmental Pollution, Journal Year: 2025, Volume and Issue: unknown, P. 126164 - 126164
Published: March 1, 2025
Language: Английский
Citations
0
Food Research International, Journal Year: 2025, Volume and Issue: 211, P. 116463 - 116463
Published: April 19, 2025
Language: Английский
Citations
0