Health Impact of Community Based Water Treatment Systems in Honduras

2012 ◽  
Vol 34 (2) ◽  
pp. 24-29
Author(s):  
Jeffery Deal

The United Nations Millennium Development Goal Number 7 states that it wants to "Halve, by 2015 the proportion of the population (global) without sustainable access to safe drinking water and basic sanitation" (United Nations 2010). Most waterborne diseases result in diarrhea, which continues to be a leading cause of morbidity and mortality worldwide. According to World Health Organization data, if existing technologies were widely used, ten percent of the worldwide burden of disease would be removed by the water supply, sanitation, hygiene, and management of water resources. This estimate makes water related diseases arguably the most manageable set of health problems affecting humans (Prüss-Üstün et al. 2008).

2014 ◽  
Vol 13 (2) ◽  
pp. 319-339 ◽  
Author(s):  
Gaurav Saxena ◽  
Ram Naresh Bharagava ◽  
Gaurav Kaithwas ◽  
Abhay Raj

Water is critical for life, but many people do not have access to clean and safe drinking water and die because of waterborne diseases. The analysis of drinking water for the presence of indicator microorganisms is key to determining microbiological quality and public health safety. However, drinking water-related illness outbreaks are still occurring worldwide. Moreover, different indicator microorganisms are being used in different countries as a tool for the microbiological examination of drinking water. Therefore, it becomes very important to understand the potentials and limitations of indicator microorganisms before implementing the guidelines and regulations designed by various regulatory agencies. This review provides updated information on traditional and alternative indicator microorganisms with merits and demerits in view of their role in managing the waterborne health risks as well as conventional and molecular methods proposed for monitoring of indicator and pathogenic microorganisms in the water environment. Further, the World Health Organization (WHO) water safety plan is emphasized in order to develop the better approaches designed to meet the requirements of safe drinking water supply for all mankind, which is one of the major challenges of the 21st century.


Water ◽  
2018 ◽  
Vol 10 (12) ◽  
pp. 1711 ◽  
Author(s):  
Robert Bain ◽  
Richard Johnston ◽  
Francesco Mitis ◽  
Christie Chatterley ◽  
Tom Slaymaker

The World Health Organization (WHO) and United Nations Children’s Fund (UNICEF), through the Joint Monitoring Programme (JMP), are responsible for global monitoring of the Sustainable Development Goal (SDG) targets for drinking water, sanitation and hygiene (WASH). The SDGs represent a fundamental shift in household WASH monitoring with a new focus on service levels and the incorporation of hygiene. This article reflects on the process of establishing SDG baselines and the methods used to generate national, regional and global estimates for the new household WASH indicators. The JMP 2017 update drew on over 3000 national data sources, primarily household surveys (n = 1443), censuses (n = 309) and administrative data (n = 1494). Whereas most countries could generate estimates for basic drinking water and basic sanitation, fewer countries could report on basic handwashing facilities, water quality and the disposal of waste from onsite sanitation. Based on data for 96 and 84 countries, respectively, the JMP estimates that globally 2.1 billion (29%) people lacked safely managed drinking water services and 4.5 billion (61%) lacked safely managed sanitation services in 2015. The expanded JMP inequalities database also finds substantial disparities by wealth and sub-national regions. The SDG baselines for household WASH reveal the scale of the challenge associated with achieving universal safely managed services and the substantial acceleration needed in many countries to achieve even basic services for everyone by 2030. Many countries have begun to localise the global SDG targets and are investing in data collection to address the SDG data gaps, whether through the integration of new elements in household surveys or strengthening collection and reporting of information through administrative and regulatory systems.


Toxins ◽  
2020 ◽  
Vol 12 (4) ◽  
pp. 268 ◽  
Author(s):  
Isaac Yaw Massey ◽  
Fei Yang

Microcystins (MCs) classified as hepatotoxic and carcinogenic are the most commonly reported cyanobacterial toxins found in the environment. Microcystis sp. possessing a series of MC synthesis genes (mcyA-mcyJ) are well documented for their excessive abundance, numerous bloom occurrences and MC producing capacity. About 246 variants of MC which exert severe animal and human health hazards through the inhibition of protein phosphatases (PP1 and PP2A) have been characterized. To minimize and prevent MC health consequences, the World Health Organization proposed 1 µg/L MC guidelines for safe drinking water quality. Further the utilization of bacteria that represent a promising biological treatment approach to degrade and remove MC from water bodies without harming the environment has gained global attention. Thus the present review described toxic effects and bacterial degradation of MCs.


2015 ◽  
Vol 5 (2) ◽  
pp. 213-219
Author(s):  
K. D. Curry ◽  
M. Morgan ◽  
S. H. Peang ◽  
S. Seang

Water for Cambodia used biosand filters (BSFs) to provide microbiologically safe drinking water for people in Moat Khla floating village in 2010 and 2011. All 189 families use the lake, which by World Health Organization (WHO) standards is deemed unsafe for drinking water. Surveys from December 2010 to February 2011 compared 40 families using BSFs and 40 families not using BSFs. Over 92% of BSF households and 90% of non-BSF households were using high-risk lake source water (>100 colonies Escherichia coli/100 mL). Only 2.5% of BSF households had filtered water with bacteria in the high-risk range and only 5% of these 40 households showed recontamination in their storage water. Forty percent of non-BSF households had high-risk bacteria levels in their stored water, and most used no treatment. Storage water for non-BSF families showed a significant reduction in mean log10E. coli levels compared to their lake source water. Stored water for non-BSF families showed recontamination even for UV-treated water and boiled river water. Recontamination occurs in both groups but is much less for BSF households highlighting the value of proper storage containers used by BSF households and the need for water and sanitation education for floating villages in Cambodia.


2018 ◽  
Vol 13 (4) ◽  
pp. 871-878 ◽  
Author(s):  
Earl Wesley Lewis ◽  
Nguza Siyambango ◽  
Selma Lendelvo

Abstract Water accessibility in informal settlements remains a challenge in sub-Saharan Africa. In this study water accessibility in the Goreangab informal settlement, Windhoek, Namibia was analyzed. Semi-structured (n – 105) and key informant interviews (n – 3) were conducted. Long distances and financial constraints are the main reasons for poor water accessibility. Only 11% of residents live within 1 km of a safe drinking water source, the recommended safe distance by the World Health Organization on minimum water access standards. Considering local factors, incorporating an integrated water resource management framework and a public–private partnership is suggested to improve the settlement's water supply management.


Author(s):  
Dora Cardona Rivas ◽  
Militza Yulain Cardona Guzmán ◽  
Olga Lucía Ocampo López

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).


2021 ◽  
Vol 11 (8) ◽  
Author(s):  
Molla Rahman Shaibur ◽  
Mohammed Sadid Hossain ◽  
Shirina Khatun ◽  
F. K. Sayema Tanzia

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.


2021 ◽  
Vol 232 (8) ◽  
Author(s):  
Ali Chabuk ◽  
Zahraa Ali Hammood ◽  
Nadhir Al-Ansari ◽  
Salwan Ali Abed ◽  
Jan Laue

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).


2021 ◽  
Vol 18 (1) ◽  
pp. 1-6
Author(s):  
Roselyn Naidu ◽  
Lionel Joseph ◽  
Syed Sauban Ghani

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.


2021 ◽  
pp. 8-10
Author(s):  
Niraj Kumar Singh ◽  
Ayan Ghosh ◽  
Debrashi Jana

INTRODUCTION: India is the second largest contributor to Rabies mortality in the world. According to a recent report of World Health Organization (WHO), approximately 55,000 human deaths are reported every year worldwide due to rabies, with an overwhelming majority of 32,000 cases reported in Asia of which 20,000 occur in India. AIMS: The general awareness about the rabies in general population, awareness of people about anti rabies vaccines and health services utilization. MATERIAL AND METHOD: The study was an observational, questionnaire-based study. For the purpose of this thesis, a descriptive co relational analytical survey was used, in which a qualitative approach was undertaken to determine the answers of mentioned research questions. st st The study was slum to the general people. The expected duration of the study was approximately six months between 1 January 2019 to 30 Dec 2019. RESULTAND DISCUSSION:We found that 77(51.3%) patients answered that on being bitten from an infected animal, both people and animals can get rabies, 46(30.7%) patients answered that on several sorts of contact with an infected animal (e.g. bite, lick, scratch) people and animals can get rabies and 27(18.0%) patients don't know how can people and animals get rabies. It was found that 113(75.3%) patients had answered that the person who is infected with rabies gets crazy/mad/dangerous, 10(6.7%) patients had answered that the person who is infected with rabies of some can get better/get treatment/do not die and 27(18.0%) patients had answered they don't know about the outcome of the treatment. It was found that 60(40.0%) patients had answered rabies treatable, 63(42.0%) patients had answered no and 27(18.0%) patients had answered do not know. We found that 145(96.7%) patients preferred to take Anti-rabies vaccine. 75(50.0%) patients answered yes, these vaccines available free of cost in govt. hospitals, 82.0% of the study populations were found to have heard about rabies; Most of them had good knowledge regarding rst-aid measures. Our ndings indicate that the urban community has good knowledge about rabies but unfortunately, they are unaware about rabies fatality. Hence, there is need to create awareness regarding wound management and post-exposure immunization. CONCLUSION:The knowledge, attitude and practices with respect to prevention and treatment of rabies were found adequate amongst the urban population. Thus, community based health education may be increased in these areas to create awareness regarding rabies.


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