نتایج جستجو برای: fluoride of water

تعداد نتایج: 21220042  

ژورنال: سلامت کار ایران 2010
اسرافیلی, علی, برادر نیازی, رقیه, جوقی, سهند, رضایی کلانتری, روشنک, عامری, احمد, عاملی, آریان,

Background and aimsFluoride is released to environment naturally and via Industrial  effluents. According to concentration of fluoride in potable water and its total uptake rate, can bebeneficial or harmful. Due to simplicity of operation, easy access to the coagulants of alum and poly aluminum chloride and low cost, coagulation was selected for fluoride removal from water. The purpose of this ...

2016
A. Aravind R. S. Dhanya Ajay Narayan George Sam V. J. Adarsh M. Kiran

AIM The aim of the present study was to evaluate the relationship of drinking water fluoride levels with children's intelligence quotient (IQ). MATERIALS AND METHODS Water was collected from initially identified endemic fluoride regions according to the geological research of Government of India. Fluoride concentration of the water was assessed by utilizing fluoride ion selective electrode, O...

ژورنال: طلوع بهداشت یزد 2014
آخوندزاده, بنت الهدی, احرامپوش, محمد حسن , قانعیان, محمد تقی , محب راد , بتول ,

Abstract Introduction:Fluoride is one of the essential elements for human health and presence of its acceptable value prevents from tooth decay but excessive absorption of fluorine into the body cause many chronic problems such as flourosis. The aim of this study was to evaluate the effect of &alpha-Alumina and &gamma -Alumina on removal of fluoride from water. Methods: This experimental ...

Journal: :international journal of occupational and environment medicine 0
ai amouei department of social medicine, school of public health, babol university of medical sciences, babol, iran ah mahvi department of environmental engineering, school of public health, center for environmental research, tehran university of medical sciences, tehran, iran aa mohammadi department of environmental engineering, school of public health, babol university of medical sciences, babol, iran ha asgharnia department of environmental engineering, school of public health, babol university of medical sciences, babol, iran sh fallah department of environmental engineering, school of public health, babol university of medical sciences, babol, iran aa khafajeh water and water waste company, khaf, razavi province, iran

long-term exposure to high concentrations of fluoride is associated with several adverse effects on human including dental and skeletal fluorosis. we studied all the groundwater wells located in rural areas of khaf city, razavi province, northeastern iran between 2009 and 2010. fluoride concentration of water samples was measured by spadns method. we found that in rural areas the fluoride conce...

اسکندری, دکتر معصومه , طوماریان, دکتر لیدا,

ABSTRACT: Excess uptake of fluoride during tooth development can cause developmental defect of enamel that has not beautiful appearance. Fluoride uptake is mainly from drinkink water and a few percent from foodstuffs. At the time of toothbrushing with fluoride dentifrice by young children, toothpaste can be swallowed , and average of fluoride ingestion is 0.3-0.5 mg in each brushing . This e...

Journal: :iranian journal of public health 0
ramesh nagarajappa dept. of public health dentistry, pacific dental college and hospital, airport road, debari, udaipur - 313024, rajasthan, india. piyush pujara dept. of public health dentistry, pacific dental college and hospital, airport road, debari, udaipur - 313024, rajasthan, india. archana j sharda dept. of public health dentistry, pacific dental college and hospital, airport road, debari, udaipur - 313024, rajasthan, india. kailash asawa dept. of public health dentistry, pacific dental college and hospital, airport road, debari, udaipur - 313024, rajasthan, india. mridula tak dept. of public health dentistry, pacific dental college and hospital, airport road, debari, udaipur - 313024, rajasthan, india. pankaj aapaliya dept. of public health dentistry, pacific dental college and hospital, airport road, debari, udaipur - 313024, rajasthan, india.

long-term ingestion of large amounts of fluoride can lead to potentially severe skeletal problems and neurological consequences. the study was conducted to assess and compare intelligence quotient of children living in high and low fluoride areas in kutch, gujarat, india.a cross-sectional descriptive survey was conducted among 100 school children aged 8 to 10 years, living in kutch district, gu...

Journal: :مجله انسان، محیط زیست و ارتقاء سلامت 0
khalilollah moeinian department of environmental health environmental health engineering, school of public health, semnan university of medical sciences, semnan, iran mohammad reza mehrasbi department of environmental health, zanjan university of medical sciences, zanjan iran hassan hassanzadazar department of public health food department of food safety and hygiene, school of public health, zanjan university of medical sciences, zanjan, iran koorosh kamali department of public health, school of public health, zanjan university of medical sciences, zanjan, iran.. elaheh rabiei department of public health food safety health, zanjan university of medical sciences, iran.

background; fluoride is an essential nutrient for the human body. the major routes of fluoride intake include food and drinking water, though the absorption of fluoride from food is much easier. the aim of this study was to evaluate the amount of fluoride in the soil and tomato and onion crops on farms of zanjan. methods; three farms of each crop (tomato and onion) were selected randomly. each ...

2014
Ene Indermitte Astrid Saava Enn Karro

Fluoride is a naturally occurring contaminant in groundwater in Estonia. There are several regions in Estonia with fluoride contents in public water supplies as high as 7 mg/L. Long-term exposure to high-fluoride drinking water may have several adverse health effects, primarily dental fluorosis. The opportunities for exposure reduction rely highly on water treatment technologies. Since 2004 pub...

2014
Koteswara Rao Mallikarjun Metre

Drinking water contamination by fluoride is recognized as a major public health problem in many parts of the world. In fact, although fluoride is an essential trace element for animals and humans, excessive fluoride intake may cause adverse health effects. The present survey highlights on efficiency of different materials for the removal of fluoride from water. The most important results of ext...

Journal: :Kathmandu University medical journal 2013
S Dhingra C M Marya A Jnaneswar H Kumar

BACKGROUND Because of the potential for contamination of municipal water supplies, people appear to be turning to alternative sources for their pure drinking water. OBJECTIVES The present study analyzed the fluoride concentration in community water and bottled drinking water sold in Faridabad city. METHODS A comparative evaluation of fluoride content in community water supply and bottled dr...

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