نتایج جستجو برای: introductionsuitability of groundwater for drinking

تعداد نتایج: 22751710  

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه شیراز 1381

‏‎the community dynamics of aquatic coleoptera(insecta)in one of the spring-stream habitats of bammo national park in fars province called cheshmeh-ye-ghanbari is studied as a pilot project and model for acquaintance with and furthering the biodiversity studies on fauna of iran. sixteen species-populations out of nineteen of this community were already identified for their taxonomy and for thei...

2009
Juan D. Paoloni Mario E. Sequeira Martín E. Espósito Carmen E. Fiorentino María del C. Blanco

Confronted with the need for accessible sources of good quality water and in view of the fact that the threat to public health posed by arsenic occurs mainly through the ingestion of contaminated drinking water, the presence and distribution of arsenic was evaluated in the southern Pampa Plains of Bahía Blanca district in Argentina. The findings show variable concentrations of arsenic in a comp...

ژورنال: سلامت و محیط زیست 2016

Background and Objective: The role of groundwater has always been an important issue in order to provide drinking water especially in desert areas. However, studies and decision-making on water supply from the water source is more costly and difficult rather than surface water. Therefore, it is important to note the newest methods like zoning. Due to the effects of water chemical parameters on ...

Journal: :international journal of preventive medicine 0
ashraf javidi nasim rafiei mohammad mehdi amin silva hovsepian mahin hashemipour roya kelishadi

background: considering the controversial information regarding the effects of perchlorate on thyroid function of high risk population as neonates, and given the high prevalence rate of thyroid disorders specially congenital hypothyroidism in our region, this study aims to investigate for the frst time in iran, the relationship between drinking groundwater perchlorate and cord blood thyroid hor...

2003
Mark A. Borchardt Mary E. Stemper Jon H. Standridge

Gastrointestinal infections of Aeromonas species are generally considered waterborne; for this reason, Aeromonas hydrophila has been placed on the United States Environmental Protection Agency Contaminant Candidate List of emerging pathogens in drinking water. In this study, we compared pulsed-field gel electrophoresis patterns of Aeromonas isolates from stool specimens of patients with diarrhe...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه بوعلی سینا - دانشکده ادبیات و علوم انسانی 1389

abstract compound is a word-formation process that are made two free morpheme (independent) and forms a new word with a new meaning that consists of meaning of both two component of compound. avestan language is one of the ancient iranian languages that is one of the indo-iranian languages. indo-iranian languages is one branch of indo-european languages. structure of compound noun and adjectiv...

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...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه امام رضا علیه السلام - دانشکده زبانهای خارجی 1393

writing an academic article requires the researchers to provide support for their works by learning how to cite the works of others. various studies regarding the analysis of citation in m.a theses have been done, while little work has been done on comparison of citations among elt scopus journal articles, and so the dearth of research in this area demands for further investigation into citatio...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه صنعتی خواجه نصیرالدین طوسی - دانشکده مهندسی برق و کامپیوتر 1391

power transformers are important equipments in power systems. thus there is a large number of researches devoted of power transformers. however, there is still a demand for future investigations, especially in the field of diagnosis of transformer failures. in order to fulfill the demand, the first part reports a study case in which four main types of failures on the active part are investigate...

Journal: :jundishapur journal of health sciences 0
afshin maleki department of environmental health, school of health, kurdistan university of medical sciences, sanandaj, ir iran seyyed nad ali alavi bakhtiarvand department of environmental health, school of health, ahvaz jundishapur university of medical sciences, ahvaz, ir iran seyyed nad ali alavi bakhtiarvand department of environmental health, school of health, ahvaz jundishapur university of medical sciences, ahvaz, ir iran mehdi safari department of environmental health, school of health, kurdistan university of medical sciences, sanandaj, ir iran reza rezaee department of environmental health, school of health, kurdistan university of medical sciences, sanandaj, ir iran mohammad ali zazuli department of environmental health, school of health and research centre of health sciences, mazandaran university of medical sciences, sari, ir iran

fluoride is one of the most important elements in the composition of teeth and bones. this element can enter the body via different ways. however, drinking water is the most important way to receive fluoride by a lot of people. an increase in fluoride level in the body causes dental fluorosis and its absence leads to teeth decay. standard rate of fluoride in drinking water is determined by the ...

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