نتایج جستجو برای: 15 ppm or drinking water

تعداد نتایج: 4258273  

Journal: :Archives of disease in childhood 1986
S Portoian-Shuhaiber

This study investigated the prevalence of unusual infant feeding practices among 204 mothers of infants aged 1-12 months, who were admitted with acute diarrhoea to the only two national hospitals in Kuwait. Ninety per cent of the mothers boiled water to prepare a powdered milk formula, but only 15% boiled water for drinking. Thirty nine infants (19%) were admitted more than once. Better family ...

Journal: :Environmental Health Perspectives 1979
H. Mitchell Perry Margaret Erlanger Elizabeth F. Perry

In our laboratory, chronically feeding cadmium to groups of rats has been reproducibly associated with average increases of 15 to 20 mm Hg in systolic pressure. A total of 497 female Long-Evans rats were continuously provided with drinking water fortified with five essential elements and containing from 0.01 to 50 ppm cadmium, as the acetate, from weaning for as long as 30 months. These rats, p...

Journal: :Archives of disease in childhood 1996
S Ozgür H Sümer G Koçoğlu

The subjects of this study were children aged 6-60 months living in villages in the Ulas Health Region, Sivas. The villages were divided into two groups according to the amount of strontium in the soil: region 1, > 350 ppm, 650 children; region 2, < 350 ppm, 1596 children. Overall, the prevalence of one or more clinical signs of rickets was 22.9%. The prevalence in region 1 was 31.5% and that i...

Journal: :Canadian journal of public health = Revue canadienne de sante publique 2015
Paulina C Podgorny Lindsay McLaren

OBJECTIVES To examine the perceived harms/risks of fluoridation as expressed in online forums relating to cessation and aftermath in Calgary, specifically, 1) which harms/risks are mentioned, 2) for those harms/risks, what kinds of evidence are cited, 3) to what extent is scientific literature cited, and what is its quality, and 4) for a subset of harms/risks, what is known from the broader sci...

2014

Water fluoridation is unnatural. It is particularly inappropriate to put fluoride into the public drinking water because fluoride is not an essential nutrient. Not one single process in the human body needs fluoride to function properly. Nature has given its own verdict on the lack of need for fluoride. The level in mothers’ milk is extremely low (0.004 ppm , NRC, 2006, p.40). That’s right fluo...

2012
B. Seraj M. Shahrabi M. Shadfar R. Ahmadi M. Fallahzadeh H. Farrokh Eslamlu M. J. Kharazifard

OBJECTIVE Prolonged excessive intake of fluoride during child's growth and development stages has been associated with mental and physical problems. The aim of this study was to investigate the effect of excessive fluoride intake on the intelligence quotient (IQ) of children living in five rural areas in Makoo/Iran. MATERIALS AND METHODS In this cross-sectional study, 293 children aged 6-11 y...

Journal: :Journal of dental hygiene : JDH 2003
Sissy A Johnson Christina DeBiase

PURPOSE The purpose of this study was to classify brands of bottled water by manufacturer assigned labeling to verify the concentration of fluoride for those brands that claim to contain fluoride, and to determine the existence and concentration of fluoride for those brands that do not cite fluoride or list it as undetermined on the product label. METHODS A convenience sample of bottled drink...

2017
Jui-Wen Ma Bin-Syuan Huang Chu-Wei Hsu Chun-Wei Peng Ming-Long Cheng Jung-Yie Kao Tzong-Der Way Hao-Chang Yin Shan-Shue Wang

In this study, a chlorine dioxide solution (UC-1) composed of chlorine dioxide was produced using an electrolytic method and subsequently purified using a membrane. UC-1 was determined to contain 2000 ppm of gaseous chlorine dioxide in water. The efficacy and safety of UC-1 were evaluated. The antimicrobial activity was more than 98.2% reduction when UC-1 concentrations were 5 and 20 ppm for ba...

2017
Eiichi Akaho Masaki Kambara

The amount of fluoride adsorbed onto hydroxyapatite increased as the aqueous fluoride concentration increased. When the aqueous fluoride concentration exceeded 100 ppm, the total amount of fluoride adsorbed onto hydroxyapatite decreased after being washed off with water three times. It is postulated that when the aqueous fluoride concentration exceeds 100 ppm, a multilayer structure of calcium ...

علی محمدی, محمود, مصداقی نیا, علی, ناصری, سیمین, نبی زاده, رامین, نظم آرا, شاهرخ, نورمرادی, حشمت, واعظی, فروغ,

Background and Aim: Methyl tertiary butyl ether (MTBE) is an oxygenated additive chemical added to gasoline, which is as a substitute for tetra ethyl lead, to reduce discharge of pollutants from automobile exhausts. This organic chemical is present in water samples collected from areas where gasoline wastes are abundant. The objective of this study was to investigate the possibility of MTBE rem...

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