scholarly journals Microbial and metal water quality in rain catchments compared with traditional drinking water sources in the East Sepik Province, Papua New Guinea

2009 ◽  
Vol 8 (1) ◽  
pp. 126-138 ◽  
Author(s):  
Helena M. Horak ◽  
Joshua S. Chynoweth ◽  
Ward P. Myers ◽  
Jennifer Davis ◽  
Scott Fendorf ◽  
...  

In Papua New Guinea, a significant portion of morbidity and mortality is attributed to water-borne diseases. To reduce incidence of disease, communities and non-governmental organizations have installed rain catchments to provide drinking water of improved quality. However, little work has been done to determine whether these rain catchments provide drinking water of better quality than traditional drinking water sources, and if morbidity is decreased in villages with rain catchments. The specific aim of this study was to evaluate the quality of water produced by rain catchments in comparison with traditional drinking water sources in rural villages in the East Sepik Province. Fifty-four water sources in 22 villages were evaluated for enterococci and Escherichia coli densities as well as 14 health-relevant metals. In addition, we examined how the prevalence of diarrhoeal illness in villages relates to the type of primary drinking water source. The majority of tested metals were below World Health Organization safety limits. Catchment water sources had lower enterococci and E. coli than other water sources. Individuals in villages using Sepik River water as their primary water source had significantly higher incidence of diarrhoea than those primarily using other water sources (streams, dug wells and catchments).

2019 ◽  
Vol 17 (3) ◽  
pp. 155-164
Author(s):  
Elsa Elsi ◽  
Sahat P Manalu ◽  
Dasuki Dasuki ◽  
Aria Kusuma

ABSTRACT One of SDG's 2030 targets is that households have access to drinking water. The phenomenon is some of community use bottled water/refill as drinking water. The aim of this article are knowing household proportion with improve clean water source and water collecting time that use bottled water/refill drinking water, and relation of clean water source characteristics with using bottle/refill drinking water. Research design is cross sectional. Dependent variable is household drinking water sources type, independents are household clean water source characteristics, and travel time collecting water. Bivariate data analysis was carried out to analyze the relationship between the proportion of bottled / refilled water users by households with adequate water sources and households that use inappropriate water sources. The results showed that proportion of households with unimproved drinking water sources, unimproved clean water source and unimproved water collecting time are greater using bottled/refill  drinking, each (7,6%) and (26,7%). There are statistic significances relation between household with unimproved drinking water source, unimproved travel time collecting water with using bottled/ relill drinking water (p = 0,000). Also found statistic significances between household with improved drinking water source, unimproved clean water source and unimproved travel time collecting water with using bottled/ relill drinking water (p = 0,000). Keywords: Bottled water, refill drinking water, improved water   ABSTRAK Salah satu target SDG’s 2030 adalah rumah tangga memiliki akses terhadap air minum. Sebagian masyarakat menggunakan air minum kemasan/ isi ulang sebagai air minum. Artikel ini bertujuan untuk mengetahui karakteristik pengguna air minum kemasan/isi ulang sebagai sumber air utama. Desain penelitian adalah potong lintang. Variabel terikat adalah jenis sumber air minum rumah tangga, sedangkan variabel bebas terdiri dari karakteristik sumber air utama dan waktu yang diperlukan untuk mengambil air. Analisis data secara bivariat dilakukan untuk menganalisis hubungan antara proporsi pengguna air minum kemasan/isi ulang oleh rumah tangga dengan sumber air layak dengan rumah tangga yang menggunakan sumber air tidak  layak.  Hasil menunjukkan bahwa proporsi pengguna air minum kemasan/isi ulang oleh  rumah tangga dengan sumber air minum yang belum layak  lebih tinggi diibandingkan dengan rumah tangga dengan sumber air minum layak, yaitu masing-masing (7,6%) dan (26,7%). Terdapat hubungan bermakna antara rumah tangga dengan sumber air minum belum layak, dengan waktu tempuh pengambilan air belum layak terhadap penggunaan air minum kemasan/ isi ulang (p=0,000).  Pada rumah tangga dengan  sumber air minum layak, sumber air utama belum layak dan waktu pengambilan belum layak juga ditemukan hubungan bermakna secara statistik terhadap penggunaan air minum kemasan/ isi ulang (p=0,000). Kata kunci: Air kemasan, air minum isi ulang, air layak


Author(s):  
Paulina Farías ◽  
Jesús Alejandro Estevez-García ◽  
Erika Noelia Onofre-Pardo ◽  
María Luisa Pérez-Humara ◽  
Elodia Rojas-Lima ◽  
...  

Water fluoride levels above the World Health Organization’s guideline (1.5 mg/L), common in overexploited aquifers, represent a health hazard. Our objective was to assess the health risks posed by exposure to fluoride in different drinking water sources in a contaminated basin in Mexico. Fluoride was measured in mutual drinking water sources and in the urine of 39 children and women. Risks were estimated through hazard quotient (HQ) by drinking water source. Dental fluorosis was assessed in the children. Mean fluoride water concentrations (mg/L) were: well, 4.2; waterhole, 2.7; bottled, 2.1; rainwater, 0.4. The mean urinary fluoride concentrations (specific gravity adjusted) were 2.1 mg/L and 3.2 mg/L in children and women, respectively. Our multiple linear regression model showed children’s urinary fluoride concentrations increased 0.96 mg/L for every 1 mg/L increase in water fluoride (p < 0.001). Dental fluorosis was diagnosed in 82% of the children, and their HQ according to drinking water source was: well, 1.5; waterhole, 1.1; bottled, 0.8; harvested rainwater, 0.3. The pervasive dental fluorosis indicates a toxic past fluoride exposure; urinary fluoride levels and HQs indicate high exposure and current health risks for most children. Drinking harvested rainwater will likely prevent most of the local fluoride exposure.


Author(s):  

Analysis of the 222Rn specific activity in water of three springs situated in Western outskirts of Yekaterinburg, out of the well that is the main drinking water source in the Palkinsky Torfyanning community, as well as the Yekaterinburg tap water has been carried out. Assessment of the radon content fluctuations over the period from January to November, 2013 in water of one of the sources under study has been done.


PLoS ONE ◽  
2021 ◽  
Vol 16 (4) ◽  
pp. e0239502
Author(s):  
Shewayiref Geremew Gebremichael ◽  
Emebet Yismaw ◽  
Belete Dejen Tsegaw ◽  
Adeladilew Dires Shibeshi

Background Clean water is an essential part of human healthy life and wellbeing. More recently, rapid population growth, high illiteracy rate, lack of sustainable development, and climate change; faces a global challenge in developing countries. The discontinuity of drinking water supply forces households either to use unsafe water storage materials or to use water from unsafe sources. The present study aimed to identify the determinants of water source types, use, quality of water, and sanitation perception of physical parameters among urban households in North-West Ethiopia. Methods A community-based cross-sectional study was conducted among households from February to March 2019. An interview-based a pre-tested and structured questionnaire was used to collect the data. Data collection samples were selected randomly and proportional to each of the kebeles’ households. MS Excel and R Version 3.6.2 were used to enter and analyze the data; respectively. Descriptive statistics using frequencies and percentages were used to explain the sample data concerning the predictor variable. Both bivariate and multivariate logistic regressions were used to assess the association between independent and response variables. Results Four hundred eighteen (418) households have participated. Based on the study undertaken,78.95% of households used improved and 21.05% of households used unimproved drinking water sources. Households drinking water sources were significantly associated with the age of the participant (x2 = 20.392, df = 3), educational status (x2 = 19.358, df = 4), source of income (x2 = 21.777, df = 3), monthly income (x2 = 13.322, df = 3), availability of additional facilities (x2 = 98.144, df = 7), cleanness status (x2 = 42.979, df = 4), scarcity of water (x2 = 5.1388, df = 1) and family size (x2 = 9.934, df = 2). The logistic regression analysis also indicated that those factors are significantly determining the water source types used by the households. Factors such as availability of toilet facility, household member type, and sex of the head of the household were not significantly associated with drinking water sources. Conclusion The uses of drinking water from improved sources were determined by different demographic, socio-economic, sanitation, and hygiene-related factors. Therefore; the local, regional, and national governments and other supporting organizations shall improve the accessibility and adequacy of drinking water from improved sources in the area.


2012 ◽  
Vol 10 (3) ◽  
pp. 358-370 ◽  
Author(s):  
Ekaterina Sokolova ◽  
Johan Åström ◽  
Thomas J. R. Pettersson ◽  
Olof Bergstedt ◽  
Malte Hermansson

The faecal contamination of drinking water sources can lead to waterborne disease outbreaks. To estimate a potential risk for waterborne infections caused by faecal contamination of drinking water sources, knowledge of the pathogen concentrations in raw water is required. We suggest a novel approach to estimate pathogen concentrations in a drinking water source by using microbial source tracking data and fate and transport modelling. First, the pathogen (norovirus, Cryptosporidium, Escherichia coli O157/H7) concentrations in faecal contamination sources around the drinking water source Lake Rådasjön in Sweden were estimated for endemic and epidemic conditions using measured concentrations of faecal indicators (E. coli and Bacteroidales genetic markers). Afterwards, the fate and transport of pathogens within the lake were simulated using a three-dimensional coupled hydrodynamic and microbiological model. This approach provided information on the contribution from different contamination sources to the pathogen concentrations at the water intake of a drinking water treatment plant. This approach addresses the limitations of monitoring and provides data for quantitative microbial risk assessment (QMRA) and risk management in the context of faecal contamination of surface drinking water sources.


2020 ◽  
Author(s):  
Shewayiref Geremew Gebremichael ◽  
Emebet Yismaw ◽  
Belete Dejen ◽  
Adeladilew Dires

AbstractBackgroundClean water is an essential element for human health, wellbeing, and prosperity. Every human being has the right to access safe drinking water. But, in now day, due to rapid population growth, illiteracy, lack of sustainable development, and climate change; it still faces a global challenge for about one billion people in the developing nation. The discontinuity of drinking water supply puts in force households either to use unsafe water storage materials or to use water from unimproved sources. This study aimed to identify the determinants of water source types, use, quality of water, and sanitation perception of physical parameters among urban households in North-West Ethiopia.MethodsA community-based cross-sectional study was conducted among households from February to March 2019. An interview-based pre-tested and structured questionnaire was used to collect the data. Data collection samples were selected randomly and proportional to each kebeles’ households. MS Excel and R Version 3.6.2 was used to enter and analyze the data; respectively. Descriptive statistics using frequencies and percentages were used to explain the sample data concerning the predictor variable. Both bivariate and multivariate logistic regressions were used to assess the association between the independent and the response variables.ResultsFour hundred eighteen (418) households have participated. Based on the study undertaken, 78.95% of households used improved and 21.05% of households used unimproved drinking water sources. Households drinking water sources are significantly associated with age of participant (x2 = 20.392, df=3), educational status (x2 = 19.358, df=4), source of income (x2 = 21.777, df=3), monthly income (x2 = 13.322, df=3), availability of additional facilities (x2 = 98.144, df=7), cleanness status (x2 =42.979, df=4), scarcity of water (x2 = 5.1388, df=1) and family size (x2 = 9.934, df=2). The logistic regression analysis also indicated as those factors are significantly determined (p 0.05) the water source types used by households. Factors such as availability of toilet facility, household member type, and sex of head of the household are not significantly associated with the drinking water sources.ConclusionThe study showed that being an older age group of the head of the household, being government employer, merchant and self-employed, being a higher income group, the presence of all facilities in the area, lived in a clean surrounding and lower family size are the determinant factors of using drinking water from improved sources. Therefore; the local, regional, and national governments and other supporting organizations shall improve the accessibility and adequacy of drinking water from improved sources through short and long time plans for the well-being of the community in the area.


Author(s):  
Sadiya Atiku ◽  
Chukwuma C. Ogbaga ◽  
Olatunbosun O. Alonge ◽  
Onyinye F. Nwagbara

Diseases caused by contaminated water consumption and poor hygiene are among the leading cause of death in children, the elderly and people with compromised immune system. The present study aims to assess the drinking water quality of some selected drinking water sources in the chosen study area using water quality index (WQI). Samples of drinking waters were collected from four different sources&mdash;river, sachet (packaged), borehole and well in Jabi, Abuja, Nigeria for physicochemical and bacteriological analyses using standard methods. With the exception of pH, river water had the highest content of all the physicochemical parameters examined. Some of the physicochemical parameters such as temperature and pH determined in this study were mostly within the World Health Organization (WHO) standard. The bacteriological analyses revealed that the highest total viable counts of 1.54 (0.12) &times; 102 (cfu/mL) were obtained in the river sample while the least values of 0.03 (0.00) &times; 102 (cfu/mL) were obtained in the sachet water. Three bacterial isolates of Escherichia coli, Pseudomonas spp and Aeromonas spp were isolated from well water while Pseudomonas spp and Proteus spp were isolated from borehole water. All other bacteria were isolated from the river. The study demonstrates that the safest drinking water source in Idu district, Jabi, Abuja is the sachet/packaged water while the least safe is the river water due to the presence of significant opportunistic pathogens. The results of this study are beneficial for water quality management and could be used for low-cost effective water quality assessment in Jabi.


Author(s):  
Matia Menichini ◽  
Simone Da Prato ◽  
Marco Doveri ◽  
Alessandro Ellero ◽  
Matteo Lelli ◽  
...  

Water is an essential economic and social resource. It is also finite and vulnerable. For Europe, this generally accepted understanding has been translated into the European and National Directive (2000/60/EC, D.Lgs. 152/2006). This law has led to an increased awareness of the role of the resource and its importance in the socioeconomic, cultural, and political realms. To protect this resource, safeguard zones for drinking water sources must be delineated. In Italy, a drinking water source such as a well or spring is to be protected by means of a three-level safeguard zone: an absolute safety zone close to the source, a respect zone depending on groundwater travel time, and a Protection Zone. The aim of this paper is to describe an integrated methodology used to define the Protection Zone. The work, developed within the framework of a project of the Institute of Geosciences and Earth Resources (IGG-CNR) and funded by the Tuscany Region Administration through “Consorzio Lamma”, focused on the delineation of the Protection Zones for several abstraction points located throughout the regional territory. The proposed methodology for protecting drinking water sources described in this paper integrates geological, hydrogeological, and hydrogeochemical methodologies. The approach includes a definition of the hydrostratigraphy of the aquifer systems, estimates of the water volume, and the quantification of inflows and outflows, as well their interrelationships. By means of this integrated methodology, fifteen Protection Zones were defined; each of these zones was divided in two areas according to their relative importance to supplying a drinking water source. The Protection Zones were further validated by means of hydrogeological and isotopic budget calculations.


2016 ◽  
Vol 44 (1) ◽  
pp. 92-102 ◽  
Author(s):  
Christine Marie George ◽  
Jennifer Inauen ◽  
Jamie Perin ◽  
Jennifer Tighe ◽  
Khaled Hasan ◽  
...  

More than 100 million people globally are estimated to be exposed to arsenic in drinking water that exceeds the World Health Organization guideline of 10 µg/L. In an effort to develop and test a low-cost sustainable approach for water arsenic testing in Bangladesh, we conducted a randomized controlled trial which found arsenic educational interventions when combined with fee-based water arsenic testing programs led to nearly all households buying an arsenic test for their drinking water sources (93%) compared with only 53% when fee-based arsenic testing alone was offered. The aim of the present study was to build on the findings of this trial by investigating prospectively the psychological factors that were most strongly associated with switching to arsenic-safe wells in response to these interventions. Our theoretical framework was the RANAS (risk, attitude, norm, ability, and self-regulation) model of behavior change. In the multivariate logistic regression model of 285 baseline unsafe well users, switching to an arsenic-safe water source was significantly associated with increased instrumental attitude (odds ratio [OR] = 9.12; 95% confidence interval [CI] = [1.85, 45.00]), descriptive norm (OR = 34.02; 95% CI = [6.11, 189.45]), coping planning (OR = 11.59; 95% CI = [3.82, 35.19]), and commitment (OR = 10.78; 95% CI = [2.33, 49.99]). In addition, each additional minute from the nearest arsenic-safe drinking water source reduced the odds of switching to an arsenic-safe well by more than 10% (OR = 0.89; 95% CI = [0.87, 0.92]). Future arsenic mitigation programs should target these behavioral determinants of switching to arsenic-safe water sources.


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