PMID- 36179844 OWN - NLM STAT- MEDLINE DCOM- 20221123 LR - 20221123 IS - 1879-1026 (Electronic) IS - 0048-9697 (Linking) VI - 856 IP - Pt 1 DP - 2023 Jan 15 TI - West African e-waste-soil assessed with a battery of cell-based bioassays. PG - 159068 LID - S0048-9697(22)06167-8 [pii] LID - 10.1016/j.scitotenv.2022.159068 [doi] AB - Soil samples randomly taken from major e-waste sites in West Africa (Nigeria, Benin and Ghana) were examined for an extensive range of organic contaminants. Cytotoxicity measurements and assessment of activation of xeno-sensing receptors from fish (Atlantic cod) were employed as a battery of in vitro biological assays to explore the quality and toxicity profile of West African e-waste soil. The concentrations of the measured contaminants of emerging concerns (CECs) and persistent organic pollutants (POPs) in the e-waste soil differs significantly from the reference soil with chemical profiles typically dominated by legacy polybrominated diphenyl ethers (PBDEs) (405.8 mugkg(-1)) and emerging organophosphate ester flame retardant tris (1-chloro-2-propyl) phosphate (TCPP) (404 mugkg(-1)), in addition to the short chain perfluorobutane sulfonate (PFBS) (275.3 mugkg(-1)) and perfluorobutanoate (PFBA) (16 mugkg(-1)). The study revealed that perfluorooctanoic acid (PFOA) occurred only in e-waste soil from Ghana and ranged from 2.6 to 5.0 mugkg(-1). Overall, non-polar e-waste soil-derived extracts had a stronger effect on COS-7 cell viability than the polar extracts and elutriates. The highest receptor activation was observed with single polar and non-polar extracts from the Nigeria and Benin sites, indicating hotspots with Er-, PPARa- and Ahr-agonist activities. Thus, the results obtained with our battery of in vitro biological assays underscored these e-waste sites as remarkably polluted spots with complex toxicity profiles of great concern for human and environmental health. CI - Copyright (c) 2022 Elsevier B.V. All rights reserved. FAU - Eze, Chukwuebuka ThankGod AU - Eze CT AD - Department of Biochemistry, Federal University Oye-Ekiti, Ekiti State, Nigeria; Department of Zoology, University of Lagos, Akoka-Yaba, Lagos State, Nigeria; Department of Biological Sciences, University of Bergen, Bergen, Norway. Electronic address: thankgod.eze@fuoye.edu.ng. FAU - Otitoloju, Adebayo Akeem AU - Otitoloju AA AD - Department of Zoology, University of Lagos, Akoka-Yaba, Lagos State, Nigeria. FAU - Eze, Obianuju Oluchukwu AU - Eze OO AD - Department of Biochemistry, University of Nigeria Nsukka, Enugu State, Nigeria. FAU - Ugochukwu, Tochukwu Ernest AU - Ugochukwu TE AD - Department of Civil Engineering, Federal University Oye-Ekiti, Ekiti State, Nigeria. FAU - Onodugo, Chinemelum AU - Onodugo C AD - Department of Biochemistry, Federal University Oye-Ekiti, Ekiti State, Nigeria. FAU - Ali, Aasim Musa AU - Ali AM AD - Section of Contaminants and Biohazards, Institute of Marine Research (IMR), P.O 1870 Nordnes, NO-5817 Bergen, Norway. FAU - Lyche, Jan Ludvig AU - Lyche JL AD - Department of Food Safety and Infection Biology, Norwegian University of Life Sciences, Oslo, Norway. FAU - Karlsen, Odd Andre AU - Karlsen OA AD - Department of Biological Sciences, University of Bergen, Bergen, Norway. FAU - Goksoyr, Anders AU - Goksoyr A AD - Department of Biological Sciences, University of Bergen, Bergen, Norway. LA - eng PT - Journal Article DEP - 20220927 PL - Netherlands TA - Sci Total Environ JT - The Science of the total environment JID - 0330500 RN - 0 (Soil) RN - 0 (Soil Pollutants) RN - 0 (Halogenated Diphenyl Ethers) SB - IM MH - Animals MH - Humans MH - Soil MH - *Electronic Waste/analysis MH - *Soil Pollutants/toxicity/analysis MH - Environmental Monitoring/methods MH - Halogenated Diphenyl Ethers/analysis MH - Biological Assay MH - Ghana OTO - NOTNLM OT - Atlantic cod OT - Cytotoxicity OT - E-waste soil OT - Luciferase assay OT - Organic pollutants OT - Stress-activated receptors COIS- Declaration of competing interest The authors declare that they have no known competing financial interests or personal relationships that could have appeared to influence the work reported in this paper. EDAT- 2022/10/01 06:00 MHDA- 2022/11/24 06:00 CRDT- 2022/09/30 19:32 PHST- 2022/04/06 00:00 [received] PHST- 2022/09/17 00:00 [revised] PHST- 2022/09/23 00:00 [accepted] PHST- 2022/10/01 06:00 [pubmed] PHST- 2022/11/24 06:00 [medline] PHST- 2022/09/30 19:32 [entrez] AID - S0048-9697(22)06167-8 [pii] AID - 10.1016/j.scitotenv.2022.159068 [doi] PST - ppublish SO - Sci Total Environ. 2023 Jan 15;856(Pt 1):159068. doi: 10.1016/j.scitotenv.2022.159068. Epub 2022 Sep 27.