Groundwater pollution risk assessment based on groundwater vulnerability and pollution load on an isolated island

The risk assessment model and parameter system of groundwater pollution were established in this paper. The multi-index evaluation method of groundwater pollution sources was proposed, and the GIS-based risk assessment method of groundwater pollution was produced in comprehensive consideration of groundwater vulnerability and groundwater pollution sources. The multi-index method suggested in this paper was used in the risk assessment of groundwater pollution at a plain area of a big city in North China, and the different grades of groundwater pollution risk were computed. The evaluation results show that the groundwater pollution risk is determined by the combined action of ground pollution sources and groundwater vulnerability. The established risk assessment method of groundwater pollution could give a scientific support for the regional groundwater pollution prevention and control planning.

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Groundwater vulnerability and pollution risk assessment with disparate models in karstic, porous, and fissured rock aquifers using remote sensing techniques and GIS in Anthemountas basin, Greece

Environmental Earth Sciences ◽

10.1007/s12665-015-4641-y ◽

2015 ◽

Vol 74 (7) ◽

pp. 6199-6209 ◽

Cited By ~ 23

Author(s):

Nerantzis Kazakis ◽

Dimitrios Oikonomidis ◽

Konstantinos S. Voudouris

Keyword(s):

Remote Sensing ◽

Risk Assessment ◽

Groundwater Vulnerability ◽

Pollution Risk ◽

Fissured Rock ◽

Remote Sensing Techniques

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Failure of generic risk assessment model framework to predict groundwater pollution risk at hundreds of metal contaminated sites: Implications for research needs

Environmental Research ◽

10.1016/j.envres.2020.109252 ◽

2020 ◽

Vol 185 ◽

pp. 109252 ◽

Cited By ~ 2

Author(s):

A. Augustsson ◽

T. Uddh Söderberg ◽

M. Fröberg ◽

D.B. Berggren Kleja ◽

M. Åström ◽

...

Keyword(s):

Risk Assessment ◽

Groundwater Pollution ◽

Assessment Model ◽

Contaminated Sites ◽

Research Needs ◽

Risk Assessment Model ◽

Model Framework ◽

Pollution Risk

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Groundwater vulnerability and pollution risk assessment of porous aquifers to nitrate: Modifying the DRASTIC method using quantitative parameters

Journal of Hydrology ◽

10.1016/j.jhydrol.2015.03.035 ◽

2015 ◽

Vol 525 ◽

pp. 13-25 ◽

Cited By ~ 111

Author(s):

Nerantzis Kazakis ◽

Konstantinos S. Voudouris

Keyword(s):

Risk Assessment ◽

Groundwater Vulnerability ◽

Pollution Risk ◽

Quantitative Parameters ◽

Drastic Method ◽

Porous Aquifers

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Groundwater Pollution Risk Assessment in the Quanzhou Area

Advanced Materials Research ◽

10.4028/www.scientific.net/amr.807-809.1469 ◽

2013 ◽

Vol 807-809 ◽

pp. 1469-1472

Author(s):

Li Tang Hu ◽

Tong Gao ◽

Jing Rui Wang

Keyword(s):

Groundwater Pollution ◽

Evaluation Method ◽

Risk Index ◽

Expert Evaluation ◽

Pollution Load ◽

Drastic Model ◽

Multi Index ◽

Pollution Risk ◽

Index Evaluation ◽

Expert Evaluation Method

Groundwater pollution under the intense of human activities in the Quanzhou coastal area strongly threatens the supply safety of groundwater sources. Based on hydrogeological conditions and the pollution load in this field, the multi-index evaluation method of pollution sources and improved DRASTIC model were employed to assess groundwater pollution risk. The rating and weights of each important factor were determined by expert evaluation method and three-level groundwater pollution risk index were obtained using ARCGIS software. The results show that groundwater pollution risk at the industrial-intensive areas are dominant. So it is necessary for government to control the emmision of pollutant from inducstry in the Quanzhou area.

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Research on the process-based risk evaluation method of groundwater pollution for contaminated site

Water Science & Technology Water Supply ◽

10.2166/ws.2015.118 ◽

2015 ◽

Vol 16 (1) ◽

pp. 150-162 ◽

Cited By ~ 2

Author(s):

Liping Bai ◽

Yeyao Wang ◽

Youya Zhou ◽

Li Liu ◽

Zengguang Yan ◽

...

Keyword(s):

Groundwater Pollution ◽

Risk Evaluation ◽

Evaluation Method ◽

Transport Model ◽

Groundwater Vulnerability ◽

Contaminated Sites ◽

Contaminated Site ◽

Disposal Site ◽

Universal Method ◽

Pollution Risk

A universal method to evaluate groundwater pollution risk with the site scale has not been established. The groundwater pollution risk is commonly evaluated by overlaying the results of groundwater vulnerability and pollution sources, but this method is inapplicable for contaminated sites. Considering the current supervision demands of groundwater pollution in China, this paper suggests a risk evaluation method for contaminated sites. The present and forecasted groundwater pollutant concentrations and the variation trend of groundwater quality were used to get the risk classes of groundwater pollution. Chromium is one of the most common groundwater contaminants found at industrially contaminated sites. A chromium residue disposal site in Baotou, China was selected as the study area. The groundwater flow model and solute transport model were constructed by MODFLOW and MT3DMS. Based on the simulation results of the numerical model, the groundwater pollution risk of the contaminated site was divided into four classes, and the regulation measures of groundwater pollution were suggested. This study could provide guidance for the environmental supervision and management of contaminated sites.

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Groundwater pollution risk assessment methodology

Water Science & Technology ◽

10.2166/wst.2003.0478 ◽

2003 ◽

Vol 47 (9) ◽

pp. 1-7 ◽

Cited By ~ 6

Author(s):

L. Lytton ◽

S. Howe ◽

R. Sage ◽

P. Greenaway

Keyword(s):

Risk Assessment ◽

Land Use ◽

Risk Score ◽

Groundwater Pollution ◽

Quality Data ◽

Risk Scores ◽

Assessment Methodology ◽

Pollution Transport ◽

Pollution Risk ◽

Risk Assessment Methodology

A generic groundwater pollution risk assessment methodology has been developed to enable the evaluation and ranking of the potential risk of pollution to groundwater abstractions. The ranking can then be used to prioritise risk management or mitigation procedures in a robust and quantifiable framework and thus inform business investment decisions. The risk assessment considers the three components of the pollution transport model: source - pathway - receptor. For groundwater abstractions these correspond to land use (with associated pollutants and shallow subsurface characteristics), aquifer and the abstraction borehole. An hierarchical approach was chosen to allow the risk assessment to be successfully carried out with different quality data for different parts of the model. The 400-day groundwater protection zone defines the catchment boundary that forms the spatial limit of the land use audit for each receptor. A risk score is obtained for each land use (potential pollution source) within the catchment. These scores are derived by considering the characteristics (such as load, persistence and toxicity) of all pollutants pertaining to each land use, their on-site management and the potential for the unsaturated subsurface to attenuate their effects in the event of a release. Risk scores are also applied to the aquifer characteristics (as pollutant pathway) and to the abstraction borehole (as pollutant receptor). Each risk score is accompanied by an uncertainty score which provides a guide to the confidence in the data used to compile the risk assessment. The application of the methodology has highlighted a number of problems in this type of work and results of initial case studies are being used to trial alternative scoring methods and a more simplified approach to accelerate the process of pollution risk assessment.

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