干旱区生态环境知识资源中心(Arid): Distribution of legacy and novel per- and polyfluoroalkyl substances in surface and groundwater affected by irrigation in an arid region

Arid

DOI	10.1016/j.scitotenv.2022.159693
	Distribution of legacy and novel per- and polyfluoroalkyl substances in surface and groundwater affected by irrigation in an arid region
	Mao, Ruoyu; Lu, Yonglong; Zhang, Meng; Wang, Cong; Sun, Bin; Shi, Yajuan; Song, Shuai; Wang, Pei; Yuan, Jingjing; Zhao, Jixin
通讯作者	Lu, YL
来源期刊	SCIENCE OF THE TOTAL ENVIRONMENT
ISSN	0048-9697
EISSN	1879-1026
出版年	2023
卷号	858
英文摘要	Frequent exchange of surface water and groundwater occurs in arid/semi-arid areas due to high evaporation and in-tensive irrigation activities, affecting the migration and transformation of per- and polyfluoroalkyl substances (PFASs) and threatening drinking water safety. This study analyzed legacy PFASs and potential precursors in surface water, groundwater, soil, and aquifer solid samples collected from a typical arid area, the Hetao Irrigation District of Northern China, to explore PFASs distribution and transformation between surface and ground. Total PFASs (Sigma PFASs) in surface water was 29-232 ng/L, higher than 2-77 ng/L in groundwater. Sigma PFASs in soil were 0.29-0.59 ng/g, higher than 0.09-0.27 in the aquifer solids. Regarding horizontal distribution, the concentration of PFASs in groundwater in-creased in downtowns and the areas recharged with lake water. In terms of vertical distribution, Sigma PFASs decreased with the increase of depth, and more PFASs adsorbed on clay particles in the aquifer. The total oxidable precursor anal-ysis showed that 8:2 FT and 4:2 FT were the dominant precursors of PFASs, resulting in an increment of 0.1-4 ng/L PFASs. Hydrogen and oxygen stable isotope compositions suggest similar sources between surface water and ground-water in the study area, while principal component analysis and Bayesian inference also indicate that surface water is an important source of groundwater PFASs. The annual infiltration PFASs to groundwater from Ulansuhai was estimated by the water balance approach to be 9.39 kg. Results highlight the influence of agricultural irrigation activ-ities and lake infiltration on groundwater PFASs in the arid region.
英文关键词	PFASs Groundwater Multimedia transport PFCA-precursors Agricultural irrigation Spatial distribution
类型	Article
语种	英语
收录类别	SCI-E
WOS记录号	WOS:000910848300003
WOS关键词	PERFLUOROALKYL ACIDS PFAAS ; PERFLUORINATED COMPOUNDS ; SOURCE IDENTIFICATION ; RISK-ASSESSMENT ; WATER ; SOILS ; PFASS ; PRECURSORS ; TRANSPORT ; LAKE
WOS类目	Environmental Sciences
WOS研究方向	Environmental Sciences & Ecology
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/398478
推荐引用方式 GB/T 7714	Mao, Ruoyu,Lu, Yonglong,Zhang, Meng,et al. Distribution of legacy and novel per- and polyfluoroalkyl substances in surface and groundwater affected by irrigation in an arid region[J],2023,858.
APA	Mao, Ruoyu.,Lu, Yonglong.,Zhang, Meng.,Wang, Cong.,Sun, Bin.,...&Zhao, Jixin.(2023).Distribution of legacy and novel per- and polyfluoroalkyl substances in surface and groundwater affected by irrigation in an arid region.SCIENCE OF THE TOTAL ENVIRONMENT,858.
MLA	Mao, Ruoyu,et al."Distribution of legacy and novel per- and polyfluoroalkyl substances in surface and groundwater affected by irrigation in an arid region".SCIENCE OF THE TOTAL ENVIRONMENT 858(2023).