干旱区生态环境知识资源中心(Arid): Groundwater vulnerability to pollution in the semi-arid Vattamalaikarai River Basin of south India thorough DRASTIC index evaluation

Arid

DOI	10.1016/j.chemer.2020.125635
	Groundwater vulnerability to pollution in the semi-arid Vattamalaikarai River Basin of south India thorough DRASTIC index evaluation
	Arya, S.; Subramani, T.; Vennila, G.; Roy, Priyadarsi D.
通讯作者	Subramani, T (corresponding author), Univ Nacl Autonoma Mexico, Inst Geol, Ciudad Univ, Ciudad De Mexico 04510, Mexico.
来源期刊	GEOCHEMISTRY
ISSN	0009-2819
EISSN	1611-5864
出版年	2020
卷号	80 期号:4
英文摘要	Pollution risk assessment is an important task for sustainable management of groundwater resources. In this pilot study, we demarcated areas of different pollution vulnerabilities within the Vattamalaikarai River Basin (ca.435 km(2)) of south India using the DRASTIC index and involving the combined geospatial techniques of remote sensing, geographical information system and global positioning system. Seven major hydrogeological factors such as depth to water level, net recharge, aquifer media, soil characteristics, topography, impact of vadose zone and hydraulic conductivity, gathered from well inventory, were considered as variables in this model. Additionally, we took into account the rainfall, geology, digital elevation model (DEM) and borehole lithology data to understand the above variables. Our vulnerability map divided the study area into zones of 'high', 'moderate' and 'low' groundwater pollution risks. Most of the basin is under the moderate pollution risk, and the regions of high vulnerabilities are associated with the shallow and permeable aquifer formations. The partial validation of this modelling with respect to the spatial distribution of nitrate in groundwater suggests that studies similar to ours in other regions can provide quick information to decision makers for better groundwater resource management and protection.
英文关键词	Groundwater Pollution risk Geospatial method Vattamalaikarai Basin South India
类型	Article
语种	英语
收录类别	SCI-E
WOS记录号	WOS:000617623900021
WOS类目	Geochemistry & Geophysics
WOS研究方向	Geochemistry & Geophysics
来源机构	Universidad Nacional Autónoma de México
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/369196
作者单位	[Arya, S.] Publ Works Dept PWD, Geol Sub Div, Tirunelveli, Tamil Nadu, India; [Vennila, G.] Anna Univ, Dept Geol, CEG, Chennai 600025, Tamil Nadu, India; [Roy, Priyadarsi D.] KS Rangasamy Coll Technol, Dept Civil Engn, Tiruchengode 637215, Tamil Nadu, India; [Subramani, T.] Univ Nacl Autonoma Mexico, Inst Geol, Ciudad Univ, Ciudad De Mexico 04510, Mexico
推荐引用方式 GB/T 7714	Arya, S.,Subramani, T.,Vennila, G.,et al. Groundwater vulnerability to pollution in the semi-arid Vattamalaikarai River Basin of south India thorough DRASTIC index evaluation[J]. Universidad Nacional Autónoma de México,2020,80(4).
APA	Arya, S.,Subramani, T.,Vennila, G.,&Roy, Priyadarsi D..(2020).Groundwater vulnerability to pollution in the semi-arid Vattamalaikarai River Basin of south India thorough DRASTIC index evaluation.GEOCHEMISTRY,80(4).
MLA	Arya, S.,et al."Groundwater vulnerability to pollution in the semi-arid Vattamalaikarai River Basin of south India thorough DRASTIC index evaluation".GEOCHEMISTRY 80.4(2020).