气候变化领域集成服务门户(CCPortal): Plastic-Rock Complexes as Hotspots for Microplastic Generation

CCPortal

DOI	10.1021/acs.est.3c00662
	Plastic-Rock Complexes as Hotspots for Microplastic Generation
	Wang, Liuwei; Bank, Michael S.; Rinklebe, Jorg; Hou, Deyi
发表日期	2023
ISSN	0013-936X
EISSN	1520-5851
起始页码	7009
结束页码	7017
卷号	57 期号:17
英文摘要	Discarded plastics and microplastics (MPs) in the environment are considered emerging contaminants and indicators of the Anthropocene epoch. This study reports the discovery of a new type of plastic material in the environment-plastic-rock complexes -formed when plastic debris irreversibly sorbs onto the parent rock after historical flooding events. These complexes consist of low-density polyethylene (LDPE) or polypropylene (PP) films stuck onto quartz-dominated mineral matrices. These plastic-rock complexes serve as hotspots for MP generation, as evidenced by laboratory wet-dry cycling tests. Over 1.03 x 108 and 1.28 x 108 items center dot m-2 MPs were generated in a zero-order mode from the LDPE- and PP-rock complexes, respectively, following 10 wet-dry cycles. The speed of MP generation was 4-5 orders of magnitude higher than that in landfills, 2-3 orders of magnitude higher than that in seawater, and >1 order of magnitude higher than that in marine sediment as compared with previously reported data. Results from this investigation provide strong direct evidence of anthropogenic waste entering geological cycles and inducing potential ecological risks that may be exacerbated by climate change conditions such as flooding events. Future research should evaluate this phenomenon regarding ecosystem fluxes, fate, and transport and impacts of plastic pollution.
英文关键词	parent rock; complex; aging; plastisphere; microplastic; nanoplastic
语种	英语
WOS研究方向	Engineering, Environmental ; Environmental Sciences
WOS类目	Science Citation Index Expanded (SCI-EXPANDED)
WOS记录号	WOS:000971520400001
来源期刊	ENVIRONMENTAL SCIENCE & TECHNOLOGY
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/281464
作者单位	Tsinghua University; Institute of Marine Research - Norway; University of Massachusetts System; University of Massachusetts Amherst; University of Wuppertal
推荐引用方式 GB/T 7714	Wang, Liuwei,Bank, Michael S.,Rinklebe, Jorg,et al. Plastic-Rock Complexes as Hotspots for Microplastic Generation[J],2023,57(17).
APA	Wang, Liuwei,Bank, Michael S.,Rinklebe, Jorg,&Hou, Deyi.(2023).Plastic-Rock Complexes as Hotspots for Microplastic Generation.ENVIRONMENTAL SCIENCE & TECHNOLOGY,57(17).
MLA	Wang, Liuwei,et al."Plastic-Rock Complexes as Hotspots for Microplastic Generation".ENVIRONMENTAL SCIENCE & TECHNOLOGY 57.17(2023).