Consequential fate of bisphenol-attached PVC microplastics in water and simulated intestinal fluids

The ever-increasing prevalence of microplastics and different bisphenols made the presence of bisphenol-attached microplastics a critical concern. In this study, experiments were performed to examine desorption behaviors and cytotoxicity performance of contaminated microplastics in aquatic surroundi...

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Main Authors: Pengfei Wu, Yuanyuan Tang, Hangbiao Jin, Yuanyuan Song, Yunsong Liu, Zongwei Cai
Format: Article
Language:English
Published: Elsevier 2020-04-01
Series:Environmental Science and Ecotechnology
Subjects:
Online Access:http://www.sciencedirect.com/science/article/pii/S2666498420300193
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author Pengfei Wu
Yuanyuan Tang
Hangbiao Jin
Yuanyuan Song
Yunsong Liu
Zongwei Cai
author_facet Pengfei Wu
Yuanyuan Tang
Hangbiao Jin
Yuanyuan Song
Yunsong Liu
Zongwei Cai
author_sort Pengfei Wu
collection DOAJ
description The ever-increasing prevalence of microplastics and different bisphenols made the presence of bisphenol-attached microplastics a critical concern. In this study, experiments were performed to examine desorption behaviors and cytotoxicity performance of contaminated microplastics in aquatic surroundings and intestinal environment after ingestion by organisms (cold-/warm-blooded). The kinetic study shows that the rate of desorption for bisphenols can be enhanced threefold under simulated warm intestinal conditions. The Freundlich isotherms indicate multiple-layer desorption of the bisphenols on the heterogeneous surfaces of polyvinyl chloride (PVC) microplastics. Hysteresis was detected in the adsorption/desorption of bisphenols in a water environment, but no adsorption/desorption hysteresis was observed in the simulated intestinal conditions of warm-blooded organisms. Due to enhanced bioaccessibility, the desorption results imply that the environmental risk of contaminated PVC microplastics may be significantly increased after ingestion at a high bisphenols dosage. Although with different IC50, the five bisphenols released under the intestinal conditions of warm-blooded organisms can cause higher proliferation reduction in fish and human cell lines than the bisphenols released in water. This study helps elucidate the consequential fate and potential cytotoxicity of contaminated microplastics and the possible implications of the microplastics as a critical vector for bisphenols to increase the potential health risks.
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spelling doaj.art-175ce1eb252e44f08b96328bbcba88422022-12-21T23:41:34ZengElsevierEnvironmental Science and Ecotechnology2666-49842020-04-012100027Consequential fate of bisphenol-attached PVC microplastics in water and simulated intestinal fluidsPengfei Wu0Yuanyuan Tang1Hangbiao Jin2Yuanyuan Song3Yunsong Liu4Zongwei Cai5State Environmental Protection Key Laboratory of Integrated Surface Water-Groundwater Pollution Control, School of Environmental Science and Engineering, Southern University of Science and Technology, 1088 Xueyuan Blvd, Nanshan District, Shenzhen, 518055, PR China; State Key Laboratory of Environmental and Biological Analysis, Department of Chemistry, Hong Kong Baptist University, Hong Kong SAR, PR ChinaState Environmental Protection Key Laboratory of Integrated Surface Water-Groundwater Pollution Control, School of Environmental Science and Engineering, Southern University of Science and Technology, 1088 Xueyuan Blvd, Nanshan District, Shenzhen, 518055, PR China; Corresponding author.Key Laboratory of Microbial Technology for Industrial Pollution Control of Zhejiang Province, College of Environment, Zhejiang University of Technology, Hangzhou, Zhejiang, 310014, PR ChinaState Key Laboratory of Environmental and Biological Analysis, Department of Chemistry, Hong Kong Baptist University, Hong Kong SAR, PR ChinaState Environmental Protection Key Laboratory of Integrated Surface Water-Groundwater Pollution Control, School of Environmental Science and Engineering, Southern University of Science and Technology, 1088 Xueyuan Blvd, Nanshan District, Shenzhen, 518055, PR ChinaState Key Laboratory of Environmental and Biological Analysis, Department of Chemistry, Hong Kong Baptist University, Hong Kong SAR, PR China; Corresponding author.The ever-increasing prevalence of microplastics and different bisphenols made the presence of bisphenol-attached microplastics a critical concern. In this study, experiments were performed to examine desorption behaviors and cytotoxicity performance of contaminated microplastics in aquatic surroundings and intestinal environment after ingestion by organisms (cold-/warm-blooded). The kinetic study shows that the rate of desorption for bisphenols can be enhanced threefold under simulated warm intestinal conditions. The Freundlich isotherms indicate multiple-layer desorption of the bisphenols on the heterogeneous surfaces of polyvinyl chloride (PVC) microplastics. Hysteresis was detected in the adsorption/desorption of bisphenols in a water environment, but no adsorption/desorption hysteresis was observed in the simulated intestinal conditions of warm-blooded organisms. Due to enhanced bioaccessibility, the desorption results imply that the environmental risk of contaminated PVC microplastics may be significantly increased after ingestion at a high bisphenols dosage. Although with different IC50, the five bisphenols released under the intestinal conditions of warm-blooded organisms can cause higher proliferation reduction in fish and human cell lines than the bisphenols released in water. This study helps elucidate the consequential fate and potential cytotoxicity of contaminated microplastics and the possible implications of the microplastics as a critical vector for bisphenols to increase the potential health risks.http://www.sciencedirect.com/science/article/pii/S2666498420300193MicroplasticsBisphenolsDesorption behaviorBioaccessibilityCytotoxicity
spellingShingle Pengfei Wu
Yuanyuan Tang
Hangbiao Jin
Yuanyuan Song
Yunsong Liu
Zongwei Cai
Consequential fate of bisphenol-attached PVC microplastics in water and simulated intestinal fluids
Environmental Science and Ecotechnology
Microplastics
Bisphenols
Desorption behavior
Bioaccessibility
Cytotoxicity
title Consequential fate of bisphenol-attached PVC microplastics in water and simulated intestinal fluids
title_full Consequential fate of bisphenol-attached PVC microplastics in water and simulated intestinal fluids
title_fullStr Consequential fate of bisphenol-attached PVC microplastics in water and simulated intestinal fluids
title_full_unstemmed Consequential fate of bisphenol-attached PVC microplastics in water and simulated intestinal fluids
title_short Consequential fate of bisphenol-attached PVC microplastics in water and simulated intestinal fluids
title_sort consequential fate of bisphenol attached pvc microplastics in water and simulated intestinal fluids
topic Microplastics
Bisphenols
Desorption behavior
Bioaccessibility
Cytotoxicity
url http://www.sciencedirect.com/science/article/pii/S2666498420300193
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