Sürdürülebilir Yeşil Kampüs Koleksiyonu / Sustainable Green Campus Collection
Permanent URI for this collectionhttps://hdl.handle.net/11147/7755
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Article Citation - WoS: 26Citation - Scopus: 31Groundwater Quality and Hydrogeochemical Properties of Torbali Region, Izmir, Turkey(Springer Verlag, 2008) Tayfur, Gökmen; Kırer, Tuğba; Baba, Alper; Tayfur, Gökmen; 03.03. Department of Civil Engineering; 03. Faculty of Engineering; 01. Izmir Institute of TechnologyThe large demand for drinking, irrigation and industrial water in the region of Torbalö (Izmir, Turkey) is supplied from groundwater sources. Almost every factory and farm has private wells that are drilled without permission. These cause the depletion of groundwater and limiting the usage of groundwater. This study investigates spatial and temporal change in groundwater quality, relationships between quality parameters, and sources of contamination in Torbali region. For this purpose, samples were collected from 10 different sampling points chosen according to their geological and hydrogeological properties and location relative to factories, between October 2001 and July 2002. Various physical (pH, temperature, EC), chemical (calcium, magnesium, potassium, sodium, chloride, alkalinity, copper, chromium, cadmium, lead, zinc) and organic (nitrate, nitrite, ammonia, COD and cyanide) parameters were monitored. It was observed that the groundwater has bicarbonate alkalinity. Agricultural contamination was determined in the region, especially during the summer. Nitrite and ammonia concentrations were found to be above drinking water standard. Organic matter contamination was also investigated in the study area. COD concentrations were higher than the permissible limits during the summer months of the monitoring period.Master Thesis Groundwater Quality Assessment in Torbalı Region(Izmir Institute of Technology, 2002) Kırer, Tuğba; Tayfur, Gökmen; Tayfur, Gökmen; 03.03. Department of Civil Engineering; 03. Faculty of Engineering; 01. Izmir Institute of TechnologyGroundwater is an important source of irrigation, drinking water and other human activities. With the growth in population, agricultural and industrial activities and the groundwater usage have increased dramatically. However, not only the groundwater use, but also has the level of contamination in groundwater increased. In TorbalI region, drinking water and irrigation water are supplied from wells which are drilled mostly without permission. Excessive abuse of fertilizers, and pesticides in agricultural activities and industries cause to contaminate the groundwater. In order to investigate the quality of the groundwater in this regIOn, sampling locations were determined taking the geology and industry of the region into account. The samples were collected monthly for ten months. In this study, water quality parameters which are pH, temperature, electrical conductivity, calcium, magnesium, potassium, sodium, chloride, alkalinity, nitrate, nitrite, ammonia, copper, chromium, cadmium, lead, zinc, chemical oxygen demand (COD), and cyanide were examined to determine the groundwater quality and relationship between the parameters and the sources of contamination. The samples were classified as hard water. All of the samples had bicarbonate alkalinity. The study revealed the existence of agricultural contamination. Nitrate concentrations of the groundwater samples increased in summer and the concentrations of nitrate were higher than the permissible limit in some of the wells. Heavy metal contamination was not detected in the region. The concentrations of the parameters were not constant during the monitoring study. This may be because the leachate of wastewaters which are discharged suddenly and discontinuously.