NDLI: Groundwater Contamination Risk Assessment Based on Groundwater Vulnerability and Pollution Loading: A Case Study of Typical Karst Areas in China

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Groundwater Contamination Risk Assessment Based on Groundwater Vulnerability and Pollution Loading: A Case Study of Typical Karst Areas in China

Content Provider	MDPI
Author	Xiong, Yanna Liu, Jingchao Yuan, Wenchao Liu, Weijiang Ma, Shaobing Wang, Zhiyu Li, Tongtong Wang, Yanwei Wu, Jin
Copyright Year	2022
Description	Groundwater contamination risk assessment is an important basis to support the protection of the groundwater ecological environment. In this research, the groundwater contamination risk in typical karst areas in China was evaluated by PLEIK model (P: protective cover; L: land use; E: epikarst development; I: infiltration conditions; K: karst development) and classification and discrimination methods were used to assess groundwater vulnerability and pollution source load; the water quality index method was used to assess the status of groundwater contamination in the research area. The results show that groundwater vulnerability values in the research area range from 3.04 to 7.79, and most areas have low groundwater vulnerability. Groundwater pollution loading indexes, in the region of the pollution sources, gathered numerical up-water quality status evaluation that shows that most of the regional groundwater quality in the research area has good groundwater at present. The groundwater contamination risk assessment results show that the groundwater pollution risk is mainly at a very low level in most areas of the study area, but the groundwater pollution risk is higher in the areas where the pollution sources gather. The result reveals that the regional groundwater contamination risk level for regional groundwater ecological environment protection provides a theoretical basis for policy making.
Starting Page	9898
e-ISSN	20711050
DOI	10.3390/su14169898
Journal	Sustainability
Issue Number	16
Volume Number	14
Language	English
Publisher	MDPI
Publisher Date	2022-08-10
Access Restriction	Open
Subject Keyword	Sustainability Environmental Engineering Karst Area Groundwater Vulnerability Pollution Load Groundwater Contamination Risk
Content Type	Text
Resource Type	Article

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