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Using this data, the map components were plotted by Kriging geostatistical method. The samples were obtained from Yazd Regional Water Organization from 2005 to 2014. To assess the quality of drinking groundwater of Yazd-Ardakan plain according to GQI in geographical information system (GIS environment, the electrical conductivity, sodium, calcium, magnesium, chlorine, pH, sodium adsorption ratio, bicarbonate, sulfate, potassium, water hardness, and all substances dissolved in the waters of 80 wells were determined. Groundwater quality index (GQI checks the components of the available water with various quality levels. In this regard, determining the quality and pollution of surface water and groundwater is very important, especially in areas where groundwater resources are used for drinking. Accordingly, the management of the water resources in the country is a priority.
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Groundwater Quality Assessment Based on Geographical Information System and Groundwater Quality Indexĭirectory of Open Access Journals (Sweden)įull Text Available Iran is located in an arid and semi-arid part of the world.
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background level) should the concentration be lowered through the restoration measures? In the framework of a common project between research institutions in Italy (funded by CNR) and Portugal (funded by FCT), our objective is to establish a methodology aiming at merging together 1) the evaluation of NBL and 2) the need to take into account the drinking water standards
#Cara mengekspor data res2dinv ke arcgis how to
So how to give indications to the administrators and water managers about the exploitation of good quality drinking water? In the case of anthropic contamination, how to define which area is to be restored and to which threshold (e.g. How to select a proper location for good quality groundwater abstraction is often limited to a question of facility for drilling (access, roads, authorizations, etc.) or at the most related to quantitative aspects driven by geophysical exploration (the most promising from a transmissibility point of view). Indeed the extension of a groundwater body is often very large, in the order of tens or hundreds of square km. There is an increasing need for the water managers to have sound indications on good quality groundwater exploitation. NBLs are the result of different atmospheric, geological, chemical and biological interaction processes during groundwater infiltration and circulation. The natural background level (NBL) of a substance or element allows to distinguish anthropogenic pollution from contamination of natural origin in a population of groundwater samples. the definition of the natural background level of a particular element in a particular area or groundwater body. Up to now, groundwater quality mapping has been performed separately from the assessment of its natural status, i.e. Qualitative and quantitative monitoring is required to assess the status and track its evolution in time and space especially where anthropic pressures are stronger. Groundwaters are threatened by anthropic activities and pollution is interesting a large number of aquifers worldwide. Preziosi, Elisabetta Ducci, Daniela Condesso de Melo, Maria Teresa Parrone, Daniele Sellerino, Mariangela Ghergo, Stefano Oliveira, Joana Ribeiro, Luis Mapping groundwater quality distinguishing geogenic and anthropogenic contribution using NBL