干旱区生态环境知识资源中心(Arid): Distribution and transport of microplastics in groundwater (Shiraz aquifer, southwest Iran)

Arid

DOI	10.1016/j.watres.2022.118622
	Distribution and transport of microplastics in groundwater (Shiraz aquifer, southwest Iran)
	Esfandiari, Atefeh; Abbasi, Sajjad; Peely, Ahmad Behrouj; Mowla, Dariush; Ghanbarian, Mohammad Ali; Oleszczuk, Patryk; Turner, Andrew
通讯作者	Abbasi, S
来源期刊	WATER RESEARCH
ISSN	0043-1354
EISSN	1879-2448
出版年	2022
卷号	220
英文摘要	Despite the significance of groundwater to the hydrological cycle and as a source of potable water, very little information exists on microplastics (MPs) in this environment. In the present study, MPs have been determined in ten well samples obtained from an alluvial aquifer in a semi-arid region (Shiraz, Iran) following filtration, digestion and inspection under a binocular microscope. A total of 96 MPs were identified, and concentrations ranged from 0.1 to 1.3 MP L-1 (mean and median = 0.48 and 0.43 MP L-1, respectively) and exhibited a complex distribution across the area that reflected differences in land use and local hydrology and geology. The majority of MPs (about 70%) were fibres of <= 500 mu m in length, but fragments and films were present at some sites, and the dominant polymers were polystyrene, polyethylene and polyethylene terephthalate. Coupling meteorological and water table monitoring data from the regional water organization and published information on aquifer hydrology, we estimate a lag time from precipitation to water table intrusion of between one and five months and groundwater velocity flows of between 0.01 and 0.07 m d(-1). Although the extent of retardation of MPs within the pores of groundwater is unknown, by considering empirical data and theoretical predictions on particle flow through porous media in the literature we surmise that MP residence times in the aquifer are likely to range from years to decades, thereby impeding any clear means of source identification. Nevertheless, and more generally, the consumption of potable groundwater may make to a contribution to MP exposure through ingestion.
英文关键词	Groundwater Fibres Precipitation Transport Hydrogeology Modelling Aquifer
类型	Article
语种	英语
开放获取类型	Green Submitted
收录类别	SCI-E
WOS记录号	WOS:000978966900003
WOS关键词	CONTAMINATION ; ENVIRONMENT ; POLLUTION
WOS类目	Engineering, Environmental ; Environmental Sciences ; Water Resources
WOS研究方向	Engineering ; Environmental Sciences & Ecology ; Water Resources
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/394879
推荐引用方式 GB/T 7714	Esfandiari, Atefeh,Abbasi, Sajjad,Peely, Ahmad Behrouj,et al. Distribution and transport of microplastics in groundwater (Shiraz aquifer, southwest Iran)[J],2022,220.
APA	Esfandiari, Atefeh.,Abbasi, Sajjad.,Peely, Ahmad Behrouj.,Mowla, Dariush.,Ghanbarian, Mohammad Ali.,...&Turner, Andrew.(2022).Distribution and transport of microplastics in groundwater (Shiraz aquifer, southwest Iran).WATER RESEARCH,220.
MLA	Esfandiari, Atefeh,et al."Distribution and transport of microplastics in groundwater (Shiraz aquifer, southwest Iran)".WATER RESEARCH 220(2022).