气候变化领域集成服务门户(CCPortal): Occurrence and risk assessment of microplastics in the Lhasa River-a remote plateau river on the Qinghai-Tibet Plateau, China

CCPortal

DOI	10.1007/s10661-023-11040-z
	Occurrence and risk assessment of microplastics in the Lhasa River-a remote plateau river on the Qinghai-Tibet Plateau, China
	Zhou, Amei; Zhao, Yuhong; Liu, Minxia; Suyamud, Bongkotrat; Yuan, Wenke; Yang, Yuyi
发表日期	2023
ISSN	0167-6369
EISSN	1573-2959
卷号	195 期号:3
英文摘要	Microplastics (MPs) are ubiquitous in the aquatic environment and have received widespread attention worldwide as emerging pollutants. Urbanization and anthropogenic activities are the main sources of MPs in rivers; however, the MPs in plateau rivers with less human activities are not well understood. In this study, the pollution of MPs in the surface water and shore sediment of the Lhasa River from the Qinghai-Tibet Plateau was investigated, and a risk assessment was conducted. The abundance of MPs in the surface water and shore sediment of Lhasa River were 0.63 n/L and 0.37 n/g, respectively. MPs in surface water were mainly dominated by films (43.23%) and fibers (31.12%) in shape, transparent (54.25%) in color, and 0-0.5 mm (75.83%) in size, while MPs in the shore sediment were mainly fibers (43.69%) and fragments (36.53%), transparent (71.91%), and 0-0.5 mm (60.18%). PP and PE were the predominant polymer types, accounting for 44.55% and 30.79% respectively in the surface water and 32.51% and 36.01% respectively in the shore sediment. More notably, the polymer pollution index (H) of MPs in the Lhasa River was at hazard level III due to the high risk caused by PVC, but the pollution load index (PLI) was low at hazard level I. This study reveals that the remote river in the Qinghai-Tibet Plateau are polluted by MPs, and their potential risks to the vulnerable ecosystem deserve attention.
关键词	Microplastic pollution Plateau river Freshwater environment Risk assessment
英文关键词	HEAVY-METAL; ESTUARIES; POLLUTION; SEDIMENTS; WATER; ABUNDANCE; ECOSYSTEM
WOS研究方向	Environmental Sciences
WOS记录号	WOS:000941968100002
来源期刊	ENVIRONMENTAL MONITORING AND ASSESSMENT
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/283016
作者单位	Tibet University; Tibet University; Chinese Academy of Sciences; Wuhan Botanical Garden, CAS; Tibet Agriculture & Animal Husbandry University; Shanxi Agricultural University; Chulalongkorn University; Chinese Academy of Sciences; University of Chinese Academy of Sciences, CAS
推荐引用方式 GB/T 7714	Zhou, Amei,Zhao, Yuhong,Liu, Minxia,et al. Occurrence and risk assessment of microplastics in the Lhasa River-a remote plateau river on the Qinghai-Tibet Plateau, China[J],2023,195(3).
APA	Zhou, Amei,Zhao, Yuhong,Liu, Minxia,Suyamud, Bongkotrat,Yuan, Wenke,&Yang, Yuyi.(2023).Occurrence and risk assessment of microplastics in the Lhasa River-a remote plateau river on the Qinghai-Tibet Plateau, China.ENVIRONMENTAL MONITORING AND ASSESSMENT,195(3).
MLA	Zhou, Amei,et al."Occurrence and risk assessment of microplastics in the Lhasa River-a remote plateau river on the Qinghai-Tibet Plateau, China".ENVIRONMENTAL MONITORING AND ASSESSMENT 195.3(2023).