TY - JOUR
T1 - A comprehensive review of microplastic aging
T2 - Laboratory simulations, physicochemical properties, adsorption mechanisms, and environmental impacts
AU - Gao, Yu
AU - Gao, Wei
AU - Liu, Yuzhi
AU - Zou, Donglei
AU - Li, Yuan
AU - Lin, Yingzi
AU - Zhao, Jun
N1 - Funding Information:
The authors acknowledge the financial support from the State-sponsored Postdoctoral Researcher program (GZC20230942), and Hong Kong Environment and Conservation Fund (2021-09).
Publisher Copyright:
© 2024 Elsevier B.V. All rights are reserved, including those for text and data mining, AI training, and similar technologies.
PY - 2024/12/20
Y1 - 2024/12/20
N2 - As a new type of ecological environment problem, microplastic pollution is a severe challenge faced by the world, and its threat and potential risk to the ecosystem have become a hot research spot in the current environmental field. Microplastics (MPs) in the natural environment will experience aging effect, aging will change the physical and chemical properties of MPs and affect the adsorption behavior. Recently reported characterization techniques of MPs and laboratory simulation of aging are reviewed. The aging mechanism between MPs and different pollutants and the intervention mechanism of environmental factors (MPs, pollutants and water quality environment) were revealed. In addition, to further understand the potential ecological toxicity of MPs after aging, the release and harm of additives during aging, produce the environmentally persistent free radicals, and the mechanism of reactive oxygen species (ROS) removal of pollutants adsorbed on the surface of MPs were summarized. Future research efforts should focus more on bridging the disparity between laboratory aging simulations and natural environmental conditions to enhance the authenticity and ecological relevance of such studies. The ROS production mechanism of MPs provides a reference direction for removing pollutants adsorbed by aged MPs.
AB - As a new type of ecological environment problem, microplastic pollution is a severe challenge faced by the world, and its threat and potential risk to the ecosystem have become a hot research spot in the current environmental field. Microplastics (MPs) in the natural environment will experience aging effect, aging will change the physical and chemical properties of MPs and affect the adsorption behavior. Recently reported characterization techniques of MPs and laboratory simulation of aging are reviewed. The aging mechanism between MPs and different pollutants and the intervention mechanism of environmental factors (MPs, pollutants and water quality environment) were revealed. In addition, to further understand the potential ecological toxicity of MPs after aging, the release and harm of additives during aging, produce the environmentally persistent free radicals, and the mechanism of reactive oxygen species (ROS) removal of pollutants adsorbed on the surface of MPs were summarized. Future research efforts should focus more on bridging the disparity between laboratory aging simulations and natural environmental conditions to enhance the authenticity and ecological relevance of such studies. The ROS production mechanism of MPs provides a reference direction for removing pollutants adsorbed by aged MPs.
KW - Aging
KW - Free radicals
KW - Microplastics
KW - Organic pollutants
KW - Reactive oxygen species
UR - http://www.scopus.com/inward/record.url?scp=85208533655&partnerID=8YFLogxK
U2 - 10.1016/j.scitotenv.2024.177427
DO - 10.1016/j.scitotenv.2024.177427
M3 - Review article
C2 - 39522785
AN - SCOPUS:85208533655
SN - 0048-9697
VL - 957
JO - Science of the Total Environment
JF - Science of the Total Environment
M1 - 177427
ER -