scholarly journals Microbial contamination of non-household drinking water sources: a systematic review

2018 ◽  
Vol 8 (3) ◽  
pp. 374-385 ◽  
Author(s):  
Lydia Abebe ◽  
Andrew J. Karon ◽  
Andrew J. Koltun ◽  
Ryan D. Cronk ◽  
Robert E. S. Bain ◽  
...  
Keyword(s):  
Systematic Review ◽  
Water Quality ◽  
Drinking Water ◽  
Health Care Facilities ◽  
World Health ◽  
Mass Gatherings ◽  
Thermotolerant Coliforms ◽  
Unsafe Water ◽  
Health Organization

Abstract Drinking water in non-household settings (e.g. schools, health care facilities (HCFs), restaurants, and mass gatherings) that is free of contamination is important for human health, especially in settings with vulnerable populations who are more at risk from the use of unsafe drinking water, such as immunocompromised patients in HCFs and children at school. Few studies have characterized water quality in non-household settings. We examined the quality of drinking water in non-household settings using studies identified through a previous systematic review. This review evaluated the quality (Escherichia coli, thermotolerant coliforms, and total coliforms) of drinking water in non-household settings. We found that drinking water in non-household settings is often non-compliant with health-based standards as defined by the World Health Organization. More research is necessary to determine the extent to which drinking-water quality in non-household settings differs from community settings to better understand how to effectively and appropriately address their challenges unique to safe water in non-household settings. This is of particular relevance to public health since people spend much of their day outside the home where they may consume unsafe water.

Drinking-Water Quality and Intestinal Infectious Diseases in a Colombian Department, 2010-2016

2020 ◽  
pp. 21-29
Author(s):  
Dora Cardona Rivas ◽  
Militza Yulain Cardona Guzmán ◽  
Olga Lucía Ocampo López
Keyword(s):  
Water Quality ◽  
Drinking Water ◽  
Infectious Diseases ◽  
Disease Burden ◽  
Social Protection ◽  
Drinking Water Quality ◽  
World Health ◽  
The Social ◽  
Etiological Agents ◽  
Health Organization

Objective: To characterize the burden of intestinal infectious diseases attributable to drinking-water quality in 27 municipalities in the central region of Colombia. Materials and methods: A time-trend ecological study. The drinking-water quality of the National Institute of Health and the Institute of Hydrology, Meteorology and Environmental Studies was identified. The disease burden was calculated based on the mortality registered in the National Department of Statistics and the records of morbidity attended by the Social Protection Integrated Information System. The etiological agents reported in morbidity records and the observation of environmental conditions in the municipalities of the study were included. The disease burden was determined according to the methodology recommended by the World Health Organization (WHO).

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).

Physico-chemical and Biological Properties of Groundwater Quality in Rural Settlement, Nadi, Fiji

2021 ◽  
Vol 18 (1) ◽  
pp. 1-6
Author(s):  
Roselyn Naidu ◽  
Lionel Joseph ◽  
Syed Sauban Ghani
Keyword(s):  
Water Quality ◽  
Drinking Water ◽  
Biological Properties ◽  
Drinking Water Quality ◽  
World Health ◽  
Wet Season ◽  
Potential Health ◽  
Drinking Water Contamination ◽  
Contamination Levels ◽  
Health Organization

The current study investigated drinking water quality of samples taken from Arolevu village, a locality situated in Nadi, Fiji. The groundwater samples were collected and subjected to a comprehensive physicochemical and biological analysis. The analysis for the drinking water sample was conducted seasonally, six times a year, that is, three for the dry season and three for the wet season. The results retrieved from the analysis were compared to its maximum contamination levels (MCLs) based on the health-based guidelines provided by the World Health Organization (WHO). The WHO standards were used as an attribute to determine the sources of contaminants likely to be present at the study site. A degradation trend in drinking water quality in the context of climate change may lead to potential health impacts. Hence, it is important to understand seasonal variations in drinking water quality. A proper understanding of the drinking water quality through seasonal water analysis for nitrate, nitrite, potassium, calcium, magnesium and chlorine content as well as its microbiological presence to reduce preventable risks such as using calculated amounts of fertilisers and upgrading the sewerage system to alleviate drinking water contamination is devised through this study.

scholarly journals Analysis of Physiochemical Parameters to Evaluate the Drinking Water Quality in the State of Perak, Malaysia

2015 ◽  
Vol 2015 ◽  
pp. 1-10 ◽  
Author(s):  
N. Rahmanian ◽  
Siti Hajar Bt Ali ◽  
M. Homayoonfard ◽  
N. J. Ali ◽  
M. Rehan ◽  
...  
Keyword(s):  
Water Quality ◽  
Drinking Water ◽  
Quality Standard ◽  
The State ◽  
Drinking Water Quality ◽  
World Health ◽  
Physiochemical Parameters ◽  
Health Organization ◽  
Public Health Protection ◽  
Physical And Chemical

The drinking water quality was investigated in suspected parts of Perak state, Malaysia, to ensure the continuous supply of clean and safe drinking water for the public health protection. In this regard, a detailed physical and chemical analysis of drinking water samples was carried out in different residential and commercial areas of the state. A number of parameters such as pH, turbidity, conductivity, total suspended solids (TSS), total dissolved solids (TDS), and heavy metals such as Cu, Zn, Mg, Fe, Cd, Pb, Cr, As, Hg, and Sn were analysed for each water sample collected during winter and summer periods. The obtained values of each parameter were compared with the standard values set by the World Health Organization (WHO) and local standards such as National Drinking Water Quality Standard (NDWQS). The values of each parameter were found to be within the safe limits set by the WHO and NDWQS. Overall, the water from all the locations was found to be safe as drinking water. However, it is also important to investigate other potential water contaminations such as chemicals and microbial and radiological materials for a longer period of time, including human body fluids, in order to assess the overall water quality of Perak state.

scholarly journals Water Quality of the Trstionica River (Bosnia and Herzegovina)

2020 ◽  
Vol 69 (7-8) ◽  
pp. 371-376
Author(s):  
Šuhreta Delibašić ◽  
Jasna Huremović ◽  
Sabina Žero ◽  
Sabina Gojak-Salimović
Keyword(s):  
Water Quality ◽  
Bosnia And Herzegovina ◽  
Limit Of Detection ◽  
Weather Conditions ◽  
Ion Exchange Resin ◽  
World Health ◽  
Mean Values ◽  
Significant Difference ◽  
Health Organization

The present study was conducted to investigate the water quality of the Trstionica River, Bosnia and Herzegovina. The physicochemical properties (temperature, pH, conductivity, total solids after evaporation at 105 °C), content of metals (calcium (Ca), cadmium (Cd), chromium (Cr), copper (Cu), iron (Fe), magnesium (Mg), manganese (Mn), sodium (Na), nickel (Ni), lead (Pb) and zinc (Zn)), and anions (chloride (Cl–), and phosphate (PO43–)) were determined in water samples collected at seven locations during two sampling periods: unstable weather conditions (precipitation), and stable weather conditions (without precipitation). There was a significant difference in the content of individual parameters in the river water depending on the sampling time. For determination of metals concentrations, which were below the limit of detection, a preconcentration method using an ion-exchange resin was applied. The metals concentrations during the rainy day were in the order Ca > Mg > Na > Fe > Cu > Zn > Pb > Mn with mean values of 343, 6.03, 1.94, 0.18, 0.20, 0.03, 0.02, 0.01 mg dm–3, respectively, and during stable weather conditions: Ca > Mg > Na > Cu > Fe > Mn > Zn with mean values of 288, 7.62, 2.38, 0.11, 0.10, 0.01, 0.01 mg dm–3, respectively. Cd, Cr, and Ni concentrations were below limit of detection in both cases. Obtained values were compared with World Health Organization (WHO) regulations. The results showed that the Trstionica River in the investigated part of the stream meets most of the parameters required by the regulations. The correlation between analysed parameters was assessed, as well. Based on the calculated water quality index values, the water of Trstionica River falls into the category of excellent water.

scholarly journals Assessment of Water Quality of Blue Nile River in Sudan

2018 ◽  
Vol 1 (3) ◽  
pp. 1-14
Author(s):  
Rasha Babiker Gurashi Abu Sabah ◽  
Abubaker Haroun Mohamed Adam ◽  
Dawoud Mohamed Ali
Keyword(s):  
Water Quality ◽  
Seasonal Variation ◽  
World Health ◽  
Nile River ◽  
Blue Nile ◽  
Surrounding Environment ◽  
The World ◽  
Living Organisms ◽  
Health Organization

The objectives of this study were to quantify the fresh water quality of Blue Nile River before processing, identify the pollutants, and to determine the most polluted areas, and their impacts on living organisms as well as the surrounding environment. Thus, random water samples were collected and analyzed at the laboratory of the Ministry of Irrigation and Water Resources, Ground water and Wadis Directorates - Khartoum. The outcomes were compared with the World Health Organization standardization. The results revealed variations in the concentration of the studied elements taken from the different locations. But, the results indicated that the water quality is good, and it is within the permissible water use. However, further study is recommended to include seasonal variation as well as the biological analysis.

scholarly journals Self-supply as an alternative approach to water access in rural scattered regions: evidence from a rural microcatchment in Colombia

2015 ◽  
Vol 20 (1) ◽  
Author(s):  
Wilmar Torres-López ◽  
Inés Restrepo-Tarquino ◽  
Charlotte Patterson ◽  
John Gowing ◽  
Isabel Dominguez Rivera
Keyword(s):  
Drinking Water ◽  
Rural Areas ◽  
Urban Areas ◽  
Water Sources ◽  
External Support ◽  
World Health ◽  
Unfinished Business ◽  
Development Agenda ◽  
Thermotolerant Coliforms ◽  
Health Organization

<p>Globally, access to improved water sources is lower in rural areas compared to urban areas. Furthermore, in rural areas many people use water from individual systems they have developed with their investments, often without external support. This phenomenon has been called Self-supply. Self-supply ranges from simple to complex systems and different water sources. Water quality varies, from achieving World Health Organization (WHO) standards (0 CFU/100 ml) to systems that provide water posing high risks to human health. While most studies in Self-supply have been developed in Africa, little is known in Latin America and the Caribbean (LAC). This research explores Self-supply in a rural microcatchment in Colombia (LAC). Data was collected through household and drinking water surveys and analysed. Results showed that 40% of households used Self-supply systems taking water from springs and brooks. Thermotolerant Coliforms were below 50 CFU/100 ml, both in dry and rainy season, and between 5 to 7% of samples achieved the WHO standard. These results suggest that Self-supply has potential to offer safe drinking water, provided improvements on source protection and institutional support. Therefore, Self-supply could contribute to address “unfinished business”, including ensuring access for the hardest-to-reach people, as stated in the post-2015 development agenda.</p>

scholarly journals Groundwater quality assessment of Shahdadkot, Qubo Saeed Khan and Sijawal Junejo Talukas of District Qambar Shahdadkot, Sindh

2019 ◽  
Vol 10 (1) ◽  
Author(s):  
Muhammad Farooque Lanjwani ◽  
Muhammad Yar Khuhawar ◽  
Taj Muhammad Jahangir Khuhawar
Keyword(s):  
Water Quality ◽  
Principal Component ◽  
Quality Parameters ◽  
World Health ◽  
Coefficient Of Determination ◽  
High Concentration ◽  
Permissible Limits ◽  
Groundwater Samples ◽  
Health Organization

AbstractThe study examines the water quality of Shahdadkot, Qubo Saeed Khan and Sijawal Junejo talukas of Qambar Shahdadkot District, less affected by industrial contamination. A total of 38 groundwater samples were collected and analysed for 28 parameters. The results indicated that 57.89% samples were not suitable for drinking purpose with total dissolved solids above than maximum permissible limit of World Health Organization (WHO) (1000 mg/L). The pH, total phosphate, orthophosphate and nitrite were within WHO limits. The concentration of essential metals more than half samples, fluoride in 60.52% and heavy metals 0–50% were contaminated higher than permissible limits of WHO. The statistical analysis of water quality parameters was also carried out to evaluate coefficient of determination among the parameters, cluster analysis and principal component analysis. Water quality determined for irrigation based on Kelly index (KI), sodium percentage (Na%), chloride–sulphate ratio, sodium adsorption ratio, permeability index (PI), chloroalkaline indices 1 (CAI-1), residual sodium carbonate and chloride bicarbonate ratio indicated that samples (55 to 100%) could be used for irrigation purposes. The consumption of water with high concentration of salts and fluoride above the permissible limits may be a cause of a number of diseases in the area.

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