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Abstract
Groundwater pollution in recent years due to population growth and increased waste production and increase the ground water level has dropped. Komijan plains of central Iran’s geological zones and sub-zones University – Daughter are. Mainly Quaternary alluvium and the type of sand is covered.
In order to comply with the state’s topography and hydraulic gradient from the North East to the South West is going. In declaring investigating two sampling periods of 39 water source to check for hydro, 14 source water contamination by heavy metals aquifer Komijan plain is dedicated to this purpose, ions of (S04-, CI-, CO3-, HCO3-, K+, Mg +, Ca2 +, Na +) and chemical parameters, including: TDS, EC, pH and nitrate, nitrite, ammonia, fluoride, iron, aluminum, plumbum, nickel, cobalt, Mercury etc. have been measured. Based on the geochemical evolution of groundwater in a carbonate aquifer types in feeding initiation and termination type Cholerae drain regions is rejected. Generally, the amount of soluble salts from ground water surrounding the Central Plains and the East and Southeast regions of the discharge increases. Most of the drinking water in the region (except the village of Mahajerabad) are classified as moderate to good quality. Agriculture of samples in class C2SI and C3SI (good and moderate) are located.
The results show that improper use of agricultural inputs and non-normative Such as fertilizers and pesticides, especially the one hand and the methods used for irrigation in most areas of leaching and groundwater entering the region is surplus material. Overall, the results of this study showed that arsenic contamination, fluoride, nickel, and phenolic compounds in ground water resources of the region is the impact of agricultural activities.
To prevent degradation of water quality and maintain the current status of water quality, it is proposing a change in enforcement activities such as irrigation systems Land leveling, change cropping pattern, increase efficiency in agriculture, improve the culture of water use in agriculture and water resources planning, management and monitoring should be reviewed and implemented.

Urmia University
College Science
Department of Geology

Master of Science thesis in the field for environmental geology
Title:
Study of ground water quality and pollution level Komijan plains

Supervisors:
Dr.H.phirkharrati
Dr.Kh.farhadi

Adviser:
Dr.S.alipoor

By:
A.hassani

July 2013