World Health Organization increases its drinking-water guideline for uranium

2013 ◽  
Vol 15 (10) ◽  
pp. 1817 ◽  
Author(s):  
Seth H. Frisbie ◽  
Erika J. Mitchell ◽  
Bibudhendra Sarkar
Keyword(s):  
Drinking Water ◽  
World Health Organization ◽  
World Health ◽  
Health Organization ◽  
Drinking Water Guideline

scholarly journals World Health Organization Discontinues Its Drinking-Water Guideline for Manganese

2012 ◽  
Vol 120 (6) ◽  
pp. 775-778 ◽  
Author(s):  
Seth H. Frisbie ◽  
Erika J. Mitchell ◽  
Hannah Dustin ◽  
Donald M. Maynard ◽  
Bibudhendra Sarkar
Keyword(s):  
Drinking Water ◽  
World Health Organization ◽  
World Health ◽  
Health Organization ◽  
Drinking Water Guideline

scholarly journals Assessment of drinking water contamination in food stalls of Jashore Municipality, Bangladesh

2021 ◽  
Vol 11 (8) ◽  
Author(s):  
Molla Rahman Shaibur ◽  
Mohammed Sadid Hossain ◽  
Shirina Khatun ◽  
F. K. Sayema Tanzia
Keyword(s):  
Water Quality ◽  
Drinking Water ◽  
World Health Organization ◽  
Fast Food ◽  
Pathogenic Bacteria ◽  
Permissible Limit ◽  
World Health ◽  
Drinking Water Contamination ◽  
The World ◽  
Health Organization

AbstractThis study aimed to determine the quality of drinking water supplied in different types of food stalls in Jashore Municipality, Bangladesh. A total of 35 water samples were collected from different tea stalls, street side fast food stalls, normal restaurants and well-furnished restaurants. The water quality was evaluated by determining the distinct physical, chemical and biological parameters. The results revealed that the water used in the food stalls and restaurants for drinking purpose was in desired quality in terms of turbidity, electrical conductivity, pH, total dissolved solids, nitrate (NO3−), sulfate (SO42−), phosphate (PO43−), chloride (Cl−), sodium (Na) and potassium (K) concentrations. The values were within the permissible limit proposed by the Bangladesh Bureau of Statistics and the World Health Organization. Concentrations of calcium (Ca) and magnesium (Mg) found in several samples were higher than the World Health Organization standard. Iron (Fe) concentrations were higher than the permissible limit of the World Health Organization. Only 46% exceeded the permissible limit of Bangladesh Bureau Statistics. The threatening result was that the samples were contaminated by fecal coliform, indicating that the people of Jashore Municipality may have a greater chance of being affected by pathogenic bacteria. The drinking water provided in the street side fast food stalls was biologically contaminated. The findings demonstrate that the drinking water used in food stalls and restaurants of Jashore Municipality did not meet up the potable drinking water quality standards and therefore was detrimental to public health.

scholarly journals Classification Maps for TDS Concentrations in the GIS Along Euphrates River, Iraq

2021 ◽  
Vol 232 (8) ◽  
Author(s):  
Ali Chabuk ◽  
Zahraa Ali Hammood ◽  
Nadhir Al-Ansari ◽  
Salwan Ali Abed ◽  
Jan Laue
Keyword(s):  
Water Quality ◽  
Drinking Water ◽  
World Health Organization ◽  
World Health ◽  
Euphrates River ◽  
Poor Water Quality ◽  
Quality Category ◽  
Health Organization ◽  
Dissolved Salts

AbstractIraq currently undergoing the problem of water shortage, although Iraq has two Rivers (Euphrates and Tigris) pass throughout most of its areas, and they have represented a major source of water supply. In the current research, to evaluate the quality of the Euphrates river in Iraq based on the values of total dissolved salts (TDS), the TDS concentrations were collected from sixteen sections along the river in the three succeeding years (2011, 2012, and 2013). The evaluation of the river was done depending on the classification of (W.H.O. (World Health Organization). (2003). Total Dissolved Salts in Drinking-water: Background document for development of W.H.O. Guidelines for Drinking-water Quality. World Health Organization, 20 Avenue Appia, 1211 Geneva 27, Switzerland). of rivers for drinking uses. Inverse Distance Weighting Technique (IDWT) as a tool in the GIS was employed to establish the maps of the river that using interpolation/prediction for the TDS concentrations to each selected year and the average values of TDS for these 3 years. Based on the five categories of rivers’ classification of the TDS concentrations according to the (W.H.O. (World Health Organization). (2003). Total Dissolved Salts in Drinking-water: Background document for development of W.H.O. Guidelines for Drinking-water Quality. World Health Organization, 20 Avenue Appia, 1211 Geneva 27, Switzerland), the Euphrates river was classified, and the maps of classification for the years 2011, 2012 and 2013 and the average values for 3 years were created. The average values for 3 years of TDS along the Euphrates river indicated that the sections from SC-1 to SC-4 as moderate-water-quality-Category-3, the sections from SC-5 to SC-10 as poor-water-quality-Category-4, while the sections between SC-11 to SC-16 as very poor-water-quality-Category-5. The interpolation maps showed that the Euphrates river in Iraq was ranged from moderate water quality (Category-3) to very poor water quality (Category-5).

Protecting health from metal exposures in drinking water

2016 ◽  
Vol 31 (1) ◽  
Author(s):  
Margaret-Ann Armour
Keyword(s):  
Drinking Water ◽  
World Health Organization ◽  
World Health ◽  
Human Beings ◽  
Environmental Determinant ◽  
The World ◽  
Health Organization

AbstractDrinking water is essential to us as human beings. According to the World Health Organization “The quality of drinking-water is a powerful environmental determinant of health” (

Mechanisms of Boron Removal with Electrocoagulation

2006 ◽  
Vol 3 (5) ◽  
pp. 350 ◽  
Author(s):  
Jia-Qian Jiang ◽  
Y. Xu ◽  
K. Quill ◽  
J. Simon ◽  
K. Shettle
Keyword(s):  
Drinking Water ◽  
World Health Organization ◽  
Solubility Product ◽  
Boron Concentration ◽  
Animal Health ◽  
World Health ◽  
Boron Removal ◽  
The World ◽  
Set Up ◽  
Health Organization

Environmental Context. Various environmental regulation organizations have set up standards or guidelines to regulate the boron concentration in drinking water, as a result of concern for human and animal health. In 2004, the World Health Organization Guidelines for Drinking Water Quality recommended boron values of no more than 0.5 mg L–1 in drinking water. Preliminary studies on boron removal with electrocoagulation have been carried out. However, in order to enhance boron removal using this method, and to meet the stringent guidelines set in place by the World Health Organization, there is a need to obtain a better understanding of how boron is removed from water by electrocoagulation. Abstract. This study aims to explore the mechanisms of boron removal by electrocoagulation (EC). The results demonstrate that adsorption and precipitation of boron by Al flocs are dominant mechanisms in boron removal using EC. The Al flocs that result from the EC process are found to be mainly composed of polymeric Al13 polymers (43%) and to have a long-lasting positive charge. These characteristics of the flocs contribute to the high levels of boron removal observed using EC. The maximum boron adsorption of the Al flocs is 200 mg g–1 and the solubility product constant (Ksp), which represents the boron precipitate Al(OH)2BO2·nH2O, is 2.6 × 10−40 (at 20°C).

scholarly journals Physiochemical and bacteriological analyses of selected sachet water in central Monrovia, Liberia

2018 ◽  
Vol 7 (2) ◽  
pp. 30
Author(s):  
Sampson K. P. CHEA ◽  
Terrance Paye
Keyword(s):  
Drinking Water ◽  
World Health Organization ◽  
Viable Count ◽  
Reference Standards ◽  
World Health ◽  
Total Viable Count ◽  
The World ◽  
Health Organization ◽  
Sachet Water ◽  
Bacteriological Parameters

In developing nations of the world 80% of all diseases and over 30% of death are related to drinking water. Drinking water may become contaminated during collection, handling, storage and use. Since the introduction of factory based water, their consumptions have increased severely in Liberia. Therefore, it is essential to investigate the physiochemical and bacteriological parameters of sachet water brands sold in Central Monrovia in order to ascertain whether they conform to recommended standards of portable drinking-water by the World Health Organization (WHO). This study made used of random sampling. Six samples of seven brands of sachet water were purchased randomly from provision shops. The samples were transported to the National Standards Laboratory for physiochemical and bacteriological analyses. Physiochemical parameters such as calcium, fluoride, iron, lead, turbidity and pH were checked, while Total Viable Count, coliform, and Escherichia were checked as bacteriological parameters. The calcium level of the samples ranged from 4.60 – 17.8 Mg/L. All the samples had 0.00 Mg/L of fluoride. The iron level of the samples ranged from 0.11 – 0.39 Mg/L. The lead level of the samples ranged from 0.21 – 0.36 Mg/L. The pH range of the samples was from 7.00 – 7.01. The turbidity of the samples ranged from 0.00 – 3.74 NTU. Six of the samples showed to have 0.00 NTU for turbidity. Only sample 6 had value for turbidity. The level of turbidity measured 3.47 NTU. Sample 1, 2, 5 and 7 had no trace of viable count, coliform and Escherichia while sample 3, 4 and 6 show traces of viable count, coliform and Escherichia. Samples with Total Viable Count far above 0 Cfu/mL are considered unfit for portability. There were coliform and Escherichia detected in some samples, thereby making these samples not palatable. All of the samples had concentration of calcium. All of the samples had pH and fluoride that are in range with the reference standards of the World Health Organization (WHO) and Ministry of Health (MOH). All of the samples had lead and iron that were out of range of the reference standards. All of the samples showed a turbidity of 0.00 NTU except sample 3 which had turbidity of 3.74 NTU.

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