Annual Changes in Some Qualitative Parameters of Groundwater in Shirvan Plain North East of Iran
Shirvan is located in plain in Northern Khorasan province north east of Iran and has semiarid to temperate climate. To investigate the annual changes in some qualitative parameters such as electrical conductivity, total dissolved solids and chloride concentrations which have increased during ten continuous years. Fourteen groundwater sources including deep as well as semi-deep wells were sampled and were analyzed using standard methods. The trends of obtained data were analyzed during these years and the effects of different factors on the changes in electrical conductivity, concentration of chloride and total dissolved solids were clarified. The results showed that the amounts of some qualitative parameters have been increased during 10 years time which has led to decrease in water quality. The results also showed that increased in urban populations as well as extensive industrialization in the studied area are the most important reasons to influence underground water quality. Furthermore decrease in water quantity is also evident due to more water utilization and occurrence of recent droughts in the region during recent years.
Digital Object Identifier (DOI): doi.org/10.5281/zenodo.1079304Procedia APA BibTeX Chicago EndNote Harvard JSON MLA RIS XML ISO 690 PDF Downloads 1143
 Ano A. O. and F. U. Okwunodulu. Effect of population and level of industrialization on underground water quality of Abia state, Nigeria - physico-chemical properties. African journal of biotechnology. 7: 439- 443, 2008.
 Association of Official Analytical Chemists. Offical Methods Analysis of the AOAC, 1995, 16th. ed. Ch.49.
 Jalili, M.H. and A. Khakpour,. The measurment of Pb, Zn, Cd heavy metals in Mond river, The First Iranian Conference and Exhibition on Environmental Engineering, 2006.
 Loizidou M, and EG. Kapetanios.. Effect of leachate from landfills on underground water quality. Sci Total Environ. 15;128(1):69-81, 1993.
 Nakhaie Moghadam, M.A and Hojjatollah Khatib. The effects of irrigation water quality in greenhouse productions in Sistan and Balouchestan area. The first workshop on improvement of water efficiency with greenhouse planting. 2008.
 Smith R. A. , Alexander R. B., and M. Gordon Wolman. Water-Quality Trends in the Nation's Rivers. Science. 1987. 235: 1607 - 1615
 Standard Methods for the Examination of water and wastewater 20th Edition
 Stewart J. and J. Skousen. Water Quality Changes in a Polluted Stream over a Twenty-Five-Year Period. Journal of Environmental Quality, 2003, 32:654-661
 U.S Environmental Protection Agency (EPA), Standard Method, 1999
 Vafaie, H. Investigations on the hydrogeochemical properties of water resources in Hamadan. 10th Earth Sciences Association of Iran, 2006.
 Zehtabiyan, G.R., A. Nazifi, K. Alavipanah and M. Jafari,. The study on the water quality of Jajeroud river in Varamin, Biyaban Journal, Vol.8, 2003.