نتایج جستجو برای: 155 groundwater samples were collected from lenjanat plain

تعداد نتایج: 7216457  

Journal: :محیط شناسی 0
لیدا جلالی کارشناس ارشد هیدروژئولوژی، گروه زمین شناسی دانشگاه تبریز اصغر اصغری مقدم استاد گروه زمین شناسی دانشگاه تبریز

introduction suitability of groundwater for drinking, irrigation and industrial purposes depends upon its quality. changes in groundwater quality are due to variation in climatic conditions, residence time of water with aquifer materials and inputs from soil during percolation of water. multivariate statistical methods are one of the common and important methods for hydro geochemistry study. sa...

Journal: :journal of tethys 0

groundwater quality in nour coastal plain in mazandaran province of iran is assessed by measuring physicochemical parameters including total dissolved solid, electrical conductivity, ph, total hardness, major cation and anion compositions and nitrate pollution. for this purpose, fifty groundwater samples were collected in july 2012. the hydrochemical types, ca–hco3 and mg–hco3 dominate in all s...

ژورنال: طلوع بهداشت یزد 2012
بدیعی نژاد, احمد , جنیدی جعفری, احمد , عامری, احمد , غلامی, میترا ,

 Background: Nitrate is one of the most prevalent contaminants in groundwater. Ingestion of nitrate in drinking water by infants can cause low oxygen level in the blood which is a potentially fatal condition. In this study the concentration of nitrate and nitrite and contaminant supply in shiraz groundwater by ArcView Geographical Information System 9.3was investigated. methods: In this descrip...

سبحان اردکانی, سهیل, طالبیانی, سارا , معانی جو, محمد,

Background and purpose: Pollution of exploitation water resources is increasing throughout the world. Continuous monitoring of these resources could play a key role in reducing such pollutions. This study aimed at evaluating As, Zn, Pb and Cu concentrations in groundwater resources in Toyserkan Plain and preparing the zoning map through GIS. Material and Methods: Groundwater samples were collec...

Journal: :محیط شناسی 0
مرجان عبدالهی کارشناس ارشد رشتۀ زمین شناسی زیست محیطی، دانشکدۀ علوم زمین، دانشگاه شاهرود افشین قشلاقی استادیار، دانشکدۀ علوم زمین، دانشگاه شاهرود احمد عباس نژاد دانشیار، گروه زمین شناسی، دانشگاه شهید باهنر کرمان

introduction groundwater resources in arid-semiarid zones universally suffer from problems of over-abstraction and declining water tables. in addition to the issues related to quantity, degradation of groundwater quality now assumes major importance in the arid and semiarid regions. in such areas, natural factors such as the low precipitation, combined with high evapotranspiration, result in hi...

Journal: Geopersia 2015

This research investigates the changes of soil properties in Dasht-e Abbas plain due to the Karkheh water transfer to this plain. In thisstudy, the maps of groundwater level changes before and after the utilization of irrigation system were prepared. Furthermore, toinvestigate the changes of soil characteristics, soil samples were collected from various project implantations and control areas a...

Journal: :Environmental monitoring and assessment 2014
Tahoora Sheikhy Narany Mohammad Firuz Ramli Ahmad Zaharin Aris Wan Nor Azmin Sulaiman Kazem Fakharian

In recent years, groundwater quality has become a global concern due to its effect on human life and natural ecosystems. To assess the groundwater quality in the Amol-Babol Plain, a total of 308 water samples were collected during wet and dry seasons in 2009. The samples were analysed for their physico-chemical and biological constituents. Multivariate statistical analysis and geostatistical te...

پایان نامه :دانشگاه آزاد اسلامی - دانشگاه آزاد اسلامی واحد تهران مرکزی - دانشکده ادبیات و زبانهای خارجی 1390

abstract the current study set out to address the issue as to whether the implementation of portfolio assessment would give rise to iranian pre-intermediate efl learner autonomy. participants comprised 60 female in pre-intermediate level within the age range of 16-28.they were selected from among 90 language learners based on their scores on language proficiency test -key english test. then, t...

Journal: :journal of chemical health risks 0
meysam alizamir young researchers & elite club, hamedan branch, islamic azad university, hamedan, iran soheil sobhanardakani department of the environment, college of basic sciences, hamedan branch, islamic azad university, hamedan, iran lobat taghavi department of the environmental pollution, college of environment and energy, science and research branch, islamic azad university, tehran, iran

nowadays, groundwater resources play a vital role as a source of drinking water in arid and semiarid regions and forecasting of pollutants content in these resources is very important. therefore, this study aimed to compare two soft computing methods for modeling cd, pb and zn concentration in groundwater resources of asadabad plain, western iran. the relative accuracy of several soft computing...

2016
Yanhong Wang Ping Li Zhou Jiang Aki Sinkkonen Shi Wang Jin Tu Dazhun Wei Hailiang Dong Yanxin Wang

Microbial communities can play important role in arsenic release in groundwater aquifers. To investigate the microbial communities in high arsenic groundwater aquifers in agricultural irrigation area, 17 groundwater samples with different arsenic concentrations were collected along the agricultural drainage channels of Hangjinhouqi County, Inner Mongolia and examined by illumina MiSeq sequencin...

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