List of Articles Hydrogeochemistry

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  1 - Multilevel governance of the metropolitan region applying new regionalism approach (Case study: metropolitan region of Mashhad)
  Mozaffar Sarrafi naser nejati
  Multilevel governance of the metropolitan region applying new regionalism approach (Case study: metropolitan region of Mashhad) Extended Abstract Introduction The root of many problems that cities face is outside of their realm. In fact, different studies on cities and More

  Multilevel governance of the metropolitan region applying new regionalism approach (Case study: metropolitan region of Mashhad) Extended Abstract Introduction The root of many problems that cities face is outside of their realm. In fact, different studies on cities and their suburbs in the entire of world indicate that cooperation between central city and their suburbs is necessary to address regional problems such as urban sprawl, unemployment, devastation of agricultural and open spaces, social injustice, environmental injustice and etc. Mashhad metropolitan is not an exception and faces with the problems such as urban sprawl, devastation of agricultural and open spaces and etc that originated at a higher level, the metropolitan region of Mashhad. The metropolitan region of Mashhad consists of four counties; Mashhad, Fariman, Chenaran and Binalud. The regional management in metropolitan region of Mashhad is not well integrated and thus, manifested in the chaotic and somehow win-lose competitions within the regions. New regionalism approach has the capability to reduce the rivalries and establishing collaborative milieu. For applying new regionalism it is needed to apply multilevel governance approach in regional scale. Methodology The aim of this article is to study regional management system based on new regionalism approach to address the problems of metropolitan region of Mashhad. Thus, firstly the shortcomings of new regionalism and regional management methods are analyzed. Then, current regional management system of metropolitan region of Mashhad is studied. Considering this, next, the best regional management method for covering the shortcomings in the metropolitan region of Mashhad is deliberated. Research review method is used in the literature review of new regionalism and regional management. Also in studying regional management system of metropolitan region of Mashhad, descriptive-analytical research method is used. The research method is based on analyzing secondary data and formal related documents about Mashhad’s spatial management system. In addition, the academic sources with regard to regional management and new regionalism have been reviewed to provide the theoretical framework for the problems. Findings and discussion New Regionalism is an approach which recognizes certain regions capable of cooperation and integration among their intra-regional institutions in pursue of political, socio-economic, cultural, and environmental synergies. The best way for applying new regionalism is governance. In fact governance is complement of new regionalism. New regionalism should be implemented step by step to ease the resistance to change as well as to give it time for tailoring the most appropriate institutional arrangement. And also the most efficient way for cooperation between regional actors is multilevel governance based on subsidiarity. Conclusion The finding suggest that multilevel governance system with the participation of all regional actors based on subsidiarity, can be an effective regional management system of metropolitan region of Mashhad. For the metropolitan region of Mashhad two-level governance is recommended; the first level is in the territory of metropolitan region with participation of state, public and private sector and civil society. The second level is in the territory of counties (Mashhad, Fariman, Chenaran and Binalud). Key words: new regionalism, multilevel governance, metropolitan region, Mashhad Manuscript profile
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  2 - Assess groundwater quality with help of Hydrochemical parameters (Case study: in Gheydar area, Zanjan Province)
  Tahereh Janisarnavi SeyedVahid Shahrokhi
  10.30495/jest.2022.63521.5519
  Background and Objective: the aim of this paper is the assessment of groundwater with respect to the chemistry and its subsequent impact on groundwater quality for drinking and irrigation consumption in the Qheydar area, Zanjan Province.Material and Methodology: In orde More

  Background and Objective: the aim of this paper is the assessment of groundwater with respect to the chemistry and its subsequent impact on groundwater quality for drinking and irrigation consumption in the Qheydar area, Zanjan Province.Material and Methodology: In order to determine of physico-chemical parameters, anions, cations and heavy metals were sampled from the water sources of the study area and measured by different methods.Findings: The groundwater facies in the studied area belong to the bicarbonate to chloride type and generally hard due to the total hardness, Except for 2 Samples the others have hardness. In terms of EC and sodium adsorption ratio (SAR), Na% and residual sodium carbonate (RSC), the groundwater is Very salty in more of samples and totally unsuitable for agriculture. Moreover, dissolved heavy elements and Ions kind of As, Se, NO3 and SO4concentrations in the groundwater of the Qheydar area have the unsafe limits which recommended by the WHO.Discussion and Conclusion: Based on ionic ratios, Gibbs diagram, saturation index and multivariate analysis for indicating the sources of inorganic solutes in groundwater indicate carbonate sources and ion exchange have the greatest impact on water chemistry in the area. The metal index (MI) showed that some samples were non-drinking. Also, the results obtained from factor analysis showed the effect of salinity, agriculture, geology and faults in the Qeydar study area.  Manuscript profile
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  3 - Investigation of hydrogeochemical characteristics and qualitative classification of Harzandat plain groundwater resources for various purposes, using hydrochemical methods
  jamil rozrokh Asghar Asghari Moghaddam Ata Allah Nadiri
  10.22034/jest.2017.11219
  Background and Objective: Inadequency of water resources or lack of appropriate resources have been among the challenges for human activities in the Harzandat plain due to shortage of rainfall. The purpose of this study was to evaluate geochemistry and hydrogeochemical More

  Background and Objective: Inadequency of water resources or lack of appropriate resources have been among the challenges for human activities in the Harzandat plain due to shortage of rainfall. The purpose of this study was to evaluate geochemistry and hydrogeochemical anomalies and to determine groundwater usage (different uses for drinking, agriculture and industry) in the study area. Method: Due to the limited water resources in Harzandat plain, 16 groundwater samples were collected from wells, springs and qanats that sampling, and chemical analysis was carried out using standard procedures. Findings: The results of the Piper diagram show that the dominant type of groundwater is saline water in Harzandat plain. Calculation of the saturation index shows the interaction between water and rock and the state of saturation and super saturation relative to dolomite, calcite and aragonite minerals. According to the qualitative classification, the water in the study area falls within the range of moderate levle, and from the agriculture view point it is brackish water and unsuitable for irrigation. For industrial uses, some of the water resources have incrustation properties and they are partly corrosive, but most of the groundwater samples taken from the study area had incrustation properties and were unsuitable for industrial purposes. Conclusion: The results indicated the poor quality of drinking water, agriculture and industry in the central and northern parts of the plain. Also, based on the results from the Gibbs diagram, processes such as chemical weathering of mineral constituents of rock and evaporation influence the quality of groundwater in Harzandat plain.   Manuscript profile
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  4 - Potentially contaminant sources assessment and hydrogeochemical characteristics of Chromium in Golbou water resources, North Torbat Heydarieh, Khorasan Razavi
  Ali Ghasemi Mohammad Javad Nematollahi Hessamaddin Taghavi Sani
  The study area, located in north Torbat Heydarieh, contains ophiolitic units comprised chromium-bearing minerals such as Spinel. The results obtained from water samples analysis using XRF indicate high chromium concentrations in ophiolite complex as major source. Serpen More

  The study area, located in north Torbat Heydarieh, contains ophiolitic units comprised chromium-bearing minerals such as Spinel. The results obtained from water samples analysis using XRF indicate high chromium concentrations in ophiolite complex as major source. Serpentinite, the dominant lithology in the area, comprises the excess chromium concentration, being responsible for chromium-polluted water resources. As well as average chromium concentration severely decreases from serpentinite to other lithological units. Hydrogeochemical investigation of water resources indicates that the major cations and anions are in the order of Na+>Mg2+>Ca2+>K+ and Cl->HCO3->HSO42-, respectively. Regarding piper diagrams, water samples reflect a variety of facies (water types) including Na-HCO3 (3 samples), Na-Cl (3 samples), Ca-HCO3 (3 samples), Mg-Cl (3 samples) and Mg-HCO3 (2 samples). Comparing with WHO (2011) permissible chromium limit, water resources of the study area reflect excess chromium concentration. Due to limited chromite mining in the area, the anthropogenic activity could not be responsible for the elevated chromium level in the water resources, suggesting the dominant geogenic source of chromium. The abundance of Fe-Mn oxy-hydroxides in most sites of the area leads to chromium oxidation from Cr3+ to Cr6+. Average values of pH> 7.6 and DO> 7.67 mg/l of the water resources also indicate that Cr chiefly occurs as Cr6+, and Cr2O72- and CrO4- deposits.   Manuscript profile
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  5 - Determination of origin of major ions in groundwaters of Astaneh-Koochesfehan area
  مسعود Eshaghpour محمد Manshori
  Sefidrood river watershed is located in 9 provinces of Iran consist of 3 subwatershed of Ghezelozan,Shahrood and endparts of Sefidrood. In order to determination of origin of major ions in aquifer ofAstaneh-Koochesfehan study area that is located in central parts of Gil More

  Sefidrood river watershed is located in 9 provinces of Iran consist of 3 subwatershed of Ghezelozan,Shahrood and endparts of Sefidrood. In order to determination of origin of major ions in aquifer ofAstaneh-Koochesfehan study area that is located in central parts of Gilan province and end parts ofSefidrood River, data from 25 deep and shallow quality wells with maximum depth of 150m during 11period from September 2003 to September 2008 and 4 hydrometry station on 3 mentionedsubwatersheds was analyzed. Pole Astaneh and Beyne Rahe Roodbar are located in end parts ofSefidrood subwatershed and Shahrood and Gilavan are located on Shahrood and Ghezelozan riversubaequentely.The study area is located between longitudes of 370000-430000 m and latitudes of4099000-4150000 m in UTM system in zone of 39N. Astaneh Ashrafiyyeh is the largest city in thestudy area. Lithology of the study area consist of deltaic deposits and Sefidrood River alluvialsspreading from Emamzadeh Hashem to Sefidrood Delta in Caspian sea coast as a fan with a head inthe south and a long side in the north. Well samples are classified as natural waters and classified asC3S1 when Sefidrood samples in Gilevan Station as C4S2 and 3 other stations are classified as C3S1.Relatively high EC and TDS decreasing water taste quality. Relatively low quality of Sefidrood Riverwater and better quality of Disam River water influences groundwaters. There is no evidence of seawater intrusion in the groundwaters. Water type is Calcium and magnesium bicarbonate. Using linearregression equation and determination coefficient between anions and cations results that bicarbonateis originated from dissolution of limestone formations in the study area or Great Sefidrood watershade,chloride is interred in the groundwaters resulting from dissolution of evaporation deposits in theGhezelozan watershade and sulfate from dissolution of evaporation deposits in Ghezelozanwatershade and leaching of potash fertilizers from soil Manuscript profile
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  6 - The investigation of gaseous pollutant layers depth with hydrogeochemical and geoelectrical data in chahardoly plain
  Mohammad Manshori سجاد Fazel-Tavasol
  The studied area is located at Qorveh region, NW of Hamadan. The pollution of water resources withCO2 is the main problem in the studied area. Destruction of water resource, existence of hygiene andeconomic problems are its results.Main changes in drinking water quality More

  The studied area is located at Qorveh region, NW of Hamadan. The pollution of water resources withCO2 is the main problem in the studied area. Destruction of water resource, existence of hygiene andeconomic problems are its results.Main changes in drinking water quality in chahardoly plain, is a evidence for ground water resourcescontamination. In this work, hydrogeochemistry and geoelectrical datas have used to Investigation ofpollutant layers depth for chahardoly plain.According to vertical hydrogeochemical and resistivity investigations of sediment horizons, fieldinvestigations and observation in drilling sites, the depth of gas rich layer is estimated about 50-60meters Manuscript profile
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  7 - Hydrogeochemical evaluation of groundwater in the north of Qazvin Plain
  B. Talebi N. Sajjadi T. Sharmad
  Groundwater has become the most important natural resource in recent years due to lack of rainfall and less surface water. In this Study, the effect of geological and agricultural activities on groundwater resource area in north of Qazvin Plain has been studied. For thi More

  Groundwater has become the most important natural resource in recent years due to lack of rainfall and less surface water. In this Study, the effect of geological and agricultural activities on groundwater resource area in north of Qazvin Plain has been studied. For this research to study the qualitative parameters, 17 wells were sampled in 2013. Initially for estimation of the impact of geology on groundwater samples, water type and saturation index (SI) of various minerals were studied, then the impact of human factors on groundwater resources in the North of Qazvin plain was investigated by using linear regression analysis. Results showed that the amount of dissolved minerals from the west to the east of the study area is on the rise. Ions of sodium, bicarbonate and sulfate are dominant ions, mostly as a result of the dissolution of halite, gypsum and carbonate which entered the groundwater. Linear regression analysis showed that high correlation of nitrate, sulfate, chloride, potassium, and total dissolved solids (TDS) reflects the impact of agricultural activities on groundwater. Nitrate concentration was found to be much higher than WHO 2011 standards (50 ppm) in western (335 ppm) and eastern (103 ppm) parts of study area as a result of agricultural activities. Manuscript profile