EVALUATING POTENTIAL CONTAMINATION OF GROUNDWATER BY DRASTIC (CASE STUDY: PLAIN MAHIDASHT KERMANSHAH)

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GORGANI SH.; BAFKAR A.; FATEMI S.E.

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Journal: IRANIAN JOURNAL OF HEALTH AND ENVIRONMENT Year:2017 | Volume:9 | Issue:4 Page(s): 527-536

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Title

EVALUATING POTENTIAL CONTAMINATION OF GROUNDWATER BY DRASTIC (CASE STUDY: PLAIN MAHIDASHT KERMANSHAH)

Author(s)

GORGANI SH. | BAFKAR A. | FATEMI S.E. | Issue Writer Certificate

Keywords

DRASTICQ1

GISQ2

PLAIN MAHIDASHTQ1

VULNERABILITYQ1

GROUNDWATERQ2

Abstract

Background and Objective: There are major mobile and non-mobile pollution sources due to human activities that can influence aquifers and reduce GROUNDWATER quality. VULNERABILITY assessment is an inexpensive procedure in to identify areas prone to the pollutants. Identification of these sources is essential in water resources management. Mahidasht Plain is one of the important regions of Kermanshah province and plays a significant role in the production of agricultural products. Water supply for agriculture may be at risk due to the indiscriminate withdrawal of GROUNDWATER resources of the plains, the recent droughts and potable water requirements. Therefore, analysis and evaluation of the area helps to make better decisions on proper management and control of water pollution.Materials and Methods: VULNERABILITY, which is defined as the sensitivity of GROUNDWATER quality to pollution load, was applied and determined using intrinsic features of the aquifer. In this study, we have studied inherent VULNERABILITY of the Mahidasht aquifer against pollution by using DRASTIC model and GIS. Seven parameters for the zoning of aquifer VULNERABILITY was used in the DRASTIC method, including depth to the water table, net recharge, aquifer material, soil type, topography, impact of vadose zone and hydraulic conductivity. These parameters were prepared as seven layers of information in Arc GIS10 Software. The data collected for the purpose of this study were taken fromwells log, 44 piezometer in the area, pumping experiments and three rain-gauge stations. The layers prepared in Arc GIS10 software were weighted, ranked and eventually integrated.Results: The DRASTIC index calculated for the plain ranged from 34 to 120 units. On this basis and according to the standards listed for DRASTIC index, the aquifer was in a vulnerable group with a low or no risk.Conclusion: DRASTIC model output showed an inherent VULNERABILITY of the aquifer. The model can be used as a primary tool in the development and management of water resources in the future. In addition, this model is not able to produce information about amount and type of pollutants. Therefore, it is recommended to examine the salinity zoning in the future research due to less rainfall and decreasing underground water level and consequently the higher probability of salinity in underground water. Additionally, the domestic and industrial wastewater, sewage irrigation and the fraction used for GROUNDWATER recharge should be considered in order to validate the results of DRASTIC model.

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APA: Copy

GORGANI, SH., BAFKAR, A., & FATEMI, S.E.. (2017). EVALUATING POTENTIAL CONTAMINATION OF GROUNDWATER BY DRASTIC (CASE STUDY: PLAIN MAHIDASHT KERMANSHAH). IRANIAN JOURNAL OF HEALTH AND ENVIRONMENT, 9(4), 527-536. SID. https://sid.ir/paper/145972/en

Vancouver: Copy

GORGANI SH., BAFKAR A., FATEMI S.E.. EVALUATING POTENTIAL CONTAMINATION OF GROUNDWATER BY DRASTIC (CASE STUDY: PLAIN MAHIDASHT KERMANSHAH). IRANIAN JOURNAL OF HEALTH AND ENVIRONMENT[Internet]. 2017;9(4):527-536. Available from: https://sid.ir/paper/145972/en

IEEE: Copy

SH. GORGANI, A. BAFKAR, and S.E. FATEMI, “EVALUATING POTENTIAL CONTAMINATION OF GROUNDWATER BY DRASTIC (CASE STUDY: PLAIN MAHIDASHT KERMANSHAH),” IRANIAN JOURNAL OF HEALTH AND ENVIRONMENT, vol. 9, no. 4, pp. 527–536, 2017, [Online]. Available: https://sid.ir/paper/145972/en

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