DOI: 10.1016/j.chemosphere.2019.125193
论文题名: Effect of weathering on environmental behavior of microplastics: Properties, sorption and potential risks
作者: Liu P. ; Zhan X. ; Wu X. ; Li J. ; Wang H. ; Gao S.
刊名: Chemosphere
ISSN: 456535
出版年: 2020
卷: 242 语种: 英语
英文关键词: Biofilm
; Microplastics
; NOM
; Sorption behavior
; Surface properties
; Weathering
Scopus关键词: Additives
; Aquatic organisms
; Biofilms
; Crystallinity
; Microplastic
; Oxygen
; Physicochemical properties
; Pollution
; Sorption
; Surface properties
; Environmental behavior
; Environmental pollutants
; Interaction mechanisms
; Microplastics
; Natural organic matters
; Oxygen containing groups
; Oxygen functional groups
; Sorption behaviors
; Weathering
; microplastic
; plastic
; unclassified drug
; biofilm
; organic matter
; physicochemical property
; plastic
; sorption
; toxicity
; weathering profile
; aquatic species
; biofilm
; chemical composition
; color
; environmental aspects and related phenomena
; environmental behavior
; leaching
; physical chemistry
; pollutant
; pollution
; Review
; surface area
; surface charge
; surface property
; weathering
英文摘要: Microplastic (MP) pollution is a raising global concern in recent years due to its wide distribution. Additionally, most of the MPs have undergone extensive weathering in the environment, and weathered MPs may exhibit different physicochemical properties from pristine ones. The review reveals the change in physicochemical properties (e.g. size, color, crystallinity, mechanical property and oxygen-containing groups) and the release of additives and MP-derived intermediates (i.e. oligomers and oxygenated compounds) during weathering processes. Weathering further affects the sorption behavior of MPs for environmental pollutants because of the changed crystallinity, specific surface area and oxygen functional groups. The interaction mechanisms of pristine and weathered MPs with pollutants are summarized, and how weathering processes affect sorption behavior is critically revealed. Because of the changed size, color and surface charges, weathered MPs might be ingested by aquatic organisms in different ways from the pristine ones. The detailed effects of weathering on the ingestion of MPs are discussed, and the potential toxicity of leachates from weathering processes is evaluated. In addition, the environmental components (e.g. natural organic matter and salinity) and biofilm correlated to the sorption behavior of MPs are reviewed. As for the knowledge gap, further studies should focus on the long-term weathering of MPs and the relationships between weathering properties and sorption capacities toward pollutants. The potential risks of weathered MPs and leachates on organisms should be explored. © 2019 Elsevier Ltd Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/159137
Appears in Collections: 气候变化与战略
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作者单位: State Key Laboratory of Pollution Control and Resource Reuse, School of the Environment, Nanjing University, Nanjing, 210093, China; Faculty of Environmental Science and Engineering, Kunming University of Science and Technology, Kunming, 650500, China
Recommended Citation:
Liu P.,Zhan X.,Wu X.,et al. Effect of weathering on environmental behavior of microplastics: Properties, sorption and potential risks[J]. Chemosphere,2020-01-01,242