scholarly journals Microbiological Analysis of Tube-Well Water in a Rural Area of Bangladesh

2001 ◽  
Vol 67 (7) ◽  
pp. 3328-3330 ◽  
Author(s):  
M. S. Islam ◽  
A. Siddika ◽  
M. N. H. Khan ◽  
M. M. Goldar ◽  
M. A. Sadique ◽  
...  
Keyword(s):  
Drinking Water ◽  
World Health Organization ◽  
Water Samples ◽  
World Health ◽  
Well Water ◽  
Microbiological Analysis ◽  
Tube Wells ◽  
The World ◽  
Tube Well ◽  
Health Organization

ABSTRACT Five tube-wells in Matlab, Bangladesh, were selected for analysis of selected biophysicochemical parameters. The results showed that all tube-well water samples contained zooplankton and bacteria. Results for some of the parameters were outside the accepted limits recommended by the World Health Organization for drinking water. It is concluded that water from tube-wells should be treated if used as drinking water.

scholarly journals Manganese in potable water of nine districts, Bangladesh: Human health risk

2021 ◽  
Author(s):  
Md. Aminur Rahman ◽  
Md. Abul Hashem ◽  
Md. Sohel Rana ◽  
Md. Rashidul Islam
Keyword(s):  
Drinking Water ◽  
Human Health ◽  
Water Samples ◽  
Potable Water ◽  
Hazard Quotient ◽  
Human Health Risk ◽  
World Health ◽  
Well Water ◽  
Tube Well ◽  
Health Organization

Abstract Safe drinking water is directly linked to good human health. An excessive amount of manganese (Mn) in drinking water supplies causes people show symptoms of neurotoxicity. In this study, the level of Mn in potable water sourced from tube wells located in 9 (nine) districts of Bangladesh was monitored. In total 170 (one hundred and seventy) water samples were collected and Mn was quantified by atomic absorption spectroscopy (AAS). The levels of Mn found in the tube well water samples of Sirajganj, Meherpur, Chuadanga, Jhenaidah, Magura, Faridpur, Jashore, Satkhira, and Khulna were 0.37–1.86, 0.10–4.11, 0.30–0.76, 0.26–0.94, 0.01–0.18, 0.21–1.78, 0.08–1.23, 0.05–0.27 and 0.01–2.11 mg/L, respectively. Results revealed that Mn level was beyond the highest contaminated levels of 0.1 mg/L and 0.4 mg/L, which are recommended by Bangladesh Drinking Standard (BDS) and World Health Organization (WHO), respectively. The maximum Mn contaminated level reached up to 4.11 mg/L (mean: 0.53 mg/L). The Mn level in tube well water exceeded 51.1% and 75.9% set by the recommended value of WHO and BDS, respectively. Furthermore, the calculated hazard quotient (HQ) value for Mn was observed to be greater than unity, indicating both children and adults risked potential non-carcinogenic health issues. The water supply authorities should take steps to provide Mn-free drinking water for communities.

scholarly journals [Causes of drinking-water contamination in rain-fed cisterns in three villages in Ramallah and Al-Bireh District, Palestine]

2004 ◽  
Vol 10 (3) ◽  
pp. 429-436
Author(s):  
Issam A. Al Khatib ◽  
Moammar Orabi
Keyword(s):  
Drinking Water ◽  
World Health Organization ◽  
Solid Waste ◽  
Water Samples ◽  
Water Contamination ◽  
World Health ◽  
Drinking Water Contamination ◽  
Total Coliforms ◽  
The World ◽  
Health Organization

Westudied the biological characteristics of drinking-water in three villages in Ramallah and al-Bireh district, by testing the total coliforms. Water samples were collected from rain-fed cisterns between October and November 2001. The results show that 87% of tested samples of drinking-water were highly contaminated and in need of coagulation, filtration and disinfection based on the World Health Organization guidelines for drinking-water, and 10.5% had low contamination and were in need of treatment by disinfection only. Only 2.5% of the tested samples were not contaminated and were suitable for drinking without treatment. The main cause of drinking-water contamination was the presence of cesspits, wastewater and solid waste dumping sites near the cisterns

scholarly journals DRINKING WATER

2016 ◽  
Vol 23 (03) ◽  
pp. 339-342
Author(s):  
Abubakar Imran ◽  
Tariq Manzoor ◽  
Muhammad Ibrahim ◽  
Wasif Munaf
Keyword(s):  
Drinking Water ◽  
Ethical Issues ◽  
Fecal Coliforms ◽  
World Health ◽  
Health Conditions ◽  
Well Water ◽  
Human Populations ◽  
Tube Wells ◽  
Tube Well ◽  
Health Organization

Introduction: World Health Organization, (WHO) estimates that more than 80%of poor health conditions in developing countries, is related to water and sanitation condition.The supply water and sanitary lines often overlap in our water supply system and watercontaminated by fecal contents and become a major cause of GIT infections and outbreaksin human populations. Objective: The Objective of the study was to determine the fecalcontamination level in tube well water across the distributing supply lines. Study Design: Thestudy design was observational. Settings: Fatima Memorial Hospital, College of Medicine andDentistry Shadman Lahore. Period: February 01, 2012 to May 29, 2012. Method: The studydid not engage any ethical issues and conducted in five specific regions of Lahore. A 100 mlof water sample was collected in sterile container, from the tube well and after every 100 meterdistance till 500 meters. The sample size was 250 from 45 tube wells and their distributingsupply lines. It was then observed for fecal coliforms using prescribed scientific methods.Result: The results indicated that bacterial growth at baseline was 42.2%, and at extremity was73.3%. The A Category water obtained at baseline is 60.0% and at the extreme level it is 26.7%.So by increasing distance from source of water the risk of fecal contamination and low qualityof drinking water increases. Conclusion: It is concluded that as the distance increased fromthe main source

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.

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.

scholarly journals ASSESSMENT OF SELECTED HEAVY METALS IN DRINKING WATER CONSUMED WITHIN KATSINA METROPOLIS

2020 ◽  
Vol 4 (3) ◽  
pp. 531-537
Author(s):  
ABDULRASHID YUSUF ◽  
Abdurrahman Nuraddeen
Keyword(s):  
Heavy Metals ◽  
Drinking Water ◽  
Water Samples ◽  
Maximum Concentration ◽  
World Health ◽  
Well Water ◽  
Raw Water ◽  
Significant Difference ◽  
The Government ◽  
Health Organization

The study involved the analysis of some selected heavy metals in drinking water consumed within Katsina Metropolis. The water samples were collected from Ajiwa dam raw water, taps, wells, boreholes, and sachet waters and the concentration of heavy metals (Cd, Pb, Cr, Co, and Ni), was determined using Atomic Absorption Spectrophotometer (AAS). The results obtained from the water analysis indicate that cadmium was not found in all the water samples. The concentrations range for lead were  (6.222-109.63)µg/L with maximum concentration value of 109.63 µg/L in Ajiwa dam raw water, above the World Health Organization (WHO) limit, nickel (0.72-6.99)µg/L with maximum concentration value of 6.99 µg/L in borehole water, within WHO limit, chromium (36-72)µg/L with maximum concentration value of 72 µg/L in well water, above WHO limit, cobalt  (4.758-9.516) µg/L with maximum concentration value of 9.516 µg/L in well water, within WHO limit. The results indicate that most of the concentrations of the heavy metals determined were within the WHO limit, except for chromium in well water which may arises from the Government activities of money recycling and incineration of old bank notes which does not affect other water sources in the area and lead in Ajiwa dam raw water which was further removed through water treatment processes. Moreover, the Analysis of Variance  (ANOVA)  indicate no significant difference in the means of the heavy metals concentrations in all the water samples analyzed, and this may be due to the same physicochemical factors and limited industrial activities in the study area

scholarly journals RELATIONSHIP BETWEEN FLUORIDE CONTENTS IN GROUNDWATER AND PREVALENCE OF FLUOROSIS IN TAY SON DISTRICT, BINH DINH PROVINCE, VIETNAM

2018 ◽  
Vol 54 (4B) ◽  
pp. 240
Author(s):  
Phan Nhu Nguyet
Keyword(s):  
Drinking Water ◽  
Water Samples ◽  
Dental Fluorosis ◽  
Fluoride Concentration ◽  
World Health ◽  
Well Water ◽  
Drinking Water Standard ◽  
Limit Value ◽  
The Government ◽  
Health Organization

The communities within Binh Dinh province in the Central Vietnam are reliant on groundwater as their primary supply of domestic and potable water. Meanwhile, it is seriously contaminated with fluoride that causing fluorosis problem for people. This study aims to investigate the link between severity of dental fluorosis rate in a population and fluoride concentration in drinking water in Tay Son area. A total of 50 well-water samples were collected and 220 people were surveyed by questionnaire from 50 households at 3 villages: Tay Phu, Binh Tuong, Tay Giang of Tay Son district, Binh Dinh province, Vietnam. The quantitative assessment of severity of dental fluorosis was done by calculating the Community Fluorosis Index (CFI) using Dean’s classification. Result of this study showed that fluoride concentration in well-water varied from 0.31 mg/L to 7.69 mg/L (mean 2.66 mg/L, SD: 2.18 mg/L) with 70 % of well-water samples above the maximum permissible limit of 1.5 mg/L of World Health Organization (WHO) drinking water standard. 100 % people surveyed was suffered from dental fluorosis and Dean scale of dental fluorosis ranged from level 2 to level 5. CFI varied from 3.45 to 4.13 above limit value (0.6). The community seriously suffered from dental fluorosis. The fluoride concentrations and Dean Index have high correlation (r = 0.580, p < 0.0001). Based upon results of this study, it is recommended that the government should supply drinking water with appropriate fluoride content for this community.

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