Enhancing the resilience of the rainwater for drinking (RFD) system through systematic monitoring: a case study at the Ly Nhan rural hospital in Vietnam

Many rainwater harvesting systems have been installed and operated to supply drinking water to rural regions. However, they often lacked the management method to produce safe drinking water reliable. The current practice of operating rainwater harvesting systems did not have systematic monitoring as the basis of reliable operation so that the operators did not have confidence in their operation. To overcome these limitations, a rainwater for drinking (RFD) system has been suggested which was to produce drinking water by adding the proper treatment processes and setting up the proper operational mode. This study aimed to evaluate stable regular monitoring results from a pilot RFD system at a local hospital in Vietnam. Water quality and quantity were monitored by the trained local operator on a quarterly and weekly basis. The raw dataset was then shared with the study team by uploading into an open data access platform, from where the technical support was provided to prevent the provision of unsafe water to users. Ultimately, employing systematic monitoring would help to enhance the resilience of the RFD system, contributing to resolving the drinking water issue in rural areas of developing countries, aiming at the achievement of the Sustainable Development Goal 6.

IMPLEMENTATION OF WATER SUPPLY SUPERVISION IN CLASS 1 PORT HEALTH OFFICE IN JUANDA AIRPORT WORKING AREA, SURABAYA

ABSTRACTThe provision of clean water in the Class 1 Surabaya Port Health Office is supervised in accordance with the existing regulations to identify sources that could potentially cause pollution and prevent the occurrence of illness caused by unstandardized water quality and unsafe water supply. This study aimed to describe the implementation of clean water supply supervision in the Class 1 Surabaya Port Health Office in the Juanda Airport working area, Surabaya. This was an observational study which analysis was descriptive in nature. The clean water was tested for physical, chemical, and microbiological parameters, and the results showed that the water quality was in accordance with the Regulation of the Indonesian Ministry of Health No. 416 of 1990 about the Terms and Monitoring of Water Quality. However, the result from the simple chemical inspection test of the water showed that it did not fulfil health standards i.e., the residual chlorine score not equal to 0 (zero). It is suggested that more attention and supervision are conducted by water management authorities to ensure the standard residual chlorine level of 0 (zero). Additionally, expired reagents or reagents that have already changed color should not be used as it will affect the parameters tested. Keywords: Quality of clean water, clean water supply facilities, water sampling process

Microbial water quality of public swimming pool in the district of Bragança

Background The poor water quality of recreational and rehabilitation pools, has been correlated to insufficient disinfection or human contamination, and can be a vehicle for transmitting diseases to users. Because people with different characteristics attend public swimming pools with different purposes, the pool water quality control is essential to minimize hazards related to unsafe water. Methods This study was based on data collection of 144 samples between 2018 and 2020 in therapeutic and recreational pools (indoor and outdoor) in the Bragança district. The proportion of the number of bathers were estimated, as well as the microbial parameters: Total coliforms, Escherichia coli, enterococci, Pseudomonas aeruginosa, total Staphylococcus, Staphylococcus coagulase-positive and mesophilic microbial count. Results The E. coli, enterococci and mesophilic microbial count were not found in any sample. Unsafe pool water was mainly contaminated by both photogenic P. aeruginosa (6.3%) and total Sthaphylococcus (10.4%). Levels of P. aeruginosa in therapeutic pools was greater than in recreational pools (indoor and outdoor) (10.5% vs 6.8% and 4.5%, respectively), while total Sthaphylococcus was absent in therapeutic pools and represent 13.6% and 10.6% of positivity in indoor and outdoor swimming pools, respectively. The bathers number medium of therapeutic, indoor and outdoor pools was 4.8, 3.4 and 6.9, respectively. Conclusions Overall, the results endorse the good water quality of these swimming pools, mainly by the absent of faecally-derived bacteria. The presence of P. aeruginosa in therapeutic pools can be explained by the type of users, while the high number of bathers may promote the growth of some microorganisms, particularly in outdoor pools.

FACTORS WATER CHARACTERISTIC AS PREDICTING DIARRHEA UNDER 5 YEARS

Risk Factors diarrhea deaths associated to unsafe water and inadequate sanitation. Water supply is very important to decrease of diarrhea disease. Living around canal is a one of risk diarrhea incident. Improved water sanitation, water facilities, and hygiene water decrease of diarrhea disease. Study aims to know dominant factor related water sanitation which is more appropriate than diarrhea in volcano area disaster. Study design used cross sectional community-based survey. Population and sample size were required 1142 household. Data collected such as sufficient of water source, water colored, smelly water, taste water, water cooked, distance of absorption. Data were analyzed performed using SPSS. Data analysis performed a descriptive analysis, statistic test with chi square and logistic regression with confidence interval 95%. Study that sufficient of water 97.2%, no water colored 98.4%, no smelly water (95.3%), no taste water 95.4%, water cooked 98.2%, distance of absorption 11 meter 78%. Risk factor for diarrhea such as taste water OR = 7.3 (3.7-14.4), smelly water OR = 6.9 (3.5-13.6) and distance of absorption OR = 3.4 (2.0-5.7). Factor highest contribution for diarrhea is distance absorption (Exp β = 1.70 CI; 1.701-4.906). Distance absorption 11 meters is main factor contributing for diarrhea. Factor dominant contribution for diarrhea is distance of absorption 11 meter.

Impact of cyclone Amphan on the water, sanitation, hygiene, and health (WASH2) facilities of coastal Bangladesh

The vulnerability of the underfunded water, sanitation, hygiene, and health (WASH2) facilities, particularly in the developing nations, is exacerbated by natural disasters. This study assessed the impacts of Amphan on the WASH2 facilities of the affected coastal areas of Bangladesh via a structured questionnaire survey, key informant interviews, and direct observation. The study reported that Amphan destroyed WASH2 facilities, where only 20% of the respondents were receiving WASH2 services afterwards. Many respondents had to rely on unsafe water sources after the cyclone hit. While the respondents used different kinds of water treatment methods, three-quarters of the respondents reported issues related to odor, taste, color, and/or others. The majority had to practice open defecation due to damage done to sanitation facilities. Amphan has also resulted in an onslaught of several WASH2 diseases in the study area, primarily skin disease and diarrhea. The study has exhibited how intense natural disasters can completely render WASH2 facilities useless, causing the communities affected to switch to unsafe practices to meet their needs. The affected communities are in urgent need of adequate and sustainable WASH2 facilities.

Water Insufficiency, Health Hazards and Rainwater Harvesting in North 24 Parganas, West Bengal, India: Results of a Socio-economic Survey

Rural households suffer from various health hazards due to unsafe water. Rooftop rainwater harvesting (RRH) has been recommended by various experts as a safer alternative to contaminated ground and surface water. The rural households, however, for various reasons, may not be willing to adopt RRH. The present study was based on primary data collected from 923 rural households in 4 blocks of North 24 Parganas district, West Bengal, India to identify the socio-demographic factors influencing the occurrence of health hazards and willingness to adopt RRH (WRRH). The study was focused on how health hazards and WRRH were related to water insufficiency, water awareness, poverty level and other socio-demographic variables. RRH not only depends on its feasibility but also on the willingness of the household to install it. A set of indices, namely health hazard index (HHI), water insufficiency index (WII), water awareness action index (WAAI), willingness to adopt RRH index (WRRHI) and Poverty Level Index (PLI) were developed from the relevant indicators. A binary logistic regression of HHI and WRRH was carried out on these indices along with some other socio-demographic variables. Most of these indices were found to have a significant effect on HHI. WRRH, however, was not found to depend on these indices, rather on religious belief and awareness of the adverse effects of arsenic poisoning in the village. The study also highlights the significance of undertaking awareness programmes on the consequences of using unsafe water by the government and non-governmental organisations.

Investigating the presence of enteric bacteria and their antibiotic resistance in drinking water samples of slum households in Port City Chattogram, Bangladesh

Globally, unsafe water supplies due to contamination with fecal coliforms are major issues in urban slums. To determine the presence of microbial risk, water samples were collected from three slums in the port city Chattogram and the most probable number (MPN) method was used to test for the presence of fecal coliform. All of the samples tested positive by the MPN test. The highest count was 1,100 MPN/100 mL and the lowest count was 7.2 MPN/100 mL. Water stored in containers was prone to being more contaminated than water collected directly from the source. To understand the antibiotic resistivity of the coliform bacteria isolated from the water samples, antibiotic susceptibility was evaluated using the Kirby-Bauer disc method for six antibiotics. All the bacteria were 100% resistant to penicillin-G and ampicillin, and 91.7% showed resistance to amoxicillin and mecillinam. An integrated approach to water, sanitation, and hygiene education must be undertaken when providing sustainable interventions in slums.

Bacteriological quality of different sources of water in Orathanadu region, Tamil Nadu

Safe drinking water is an essential ingredient for good health of both human beings and animals. In developing countries, microbial contaminations of drinking water is a major public health issue and are responsible for causing diarrhea, giardiasis, cholera, salmonellosis, dysentery and gastroenteritis. According to WHO, approximately 1.1 billon people drink unsafe water globally and around 88% of diarrhoeal diseases reported are caused due to drinking of unsafe water. The objective of this study was to determine the bacteriological quality of different sources of water in Orathanadu, Thanjavur district, Tamil Nadu. A total of 42 water samples were collected randomly from different sources including borewell, pond and supplied municipal water in different regions of Orathanadu, Tamil Nadu and the samples were analyzed for total viable bacterial count and total thermotolerant coliform count. Results suggest that pond water sources were contaminated with thermotolerant coliforms suggesting poor protection and sanitary practices prevailing in the area. This problem can be rectified by constructing feces around water sources, regular maintenance and supervision followed by proper disposal of human and animal wastes are recommended. Keywords: Drinking water, microbial quality, Thermotolerant coliforms, Total viable bacterial count

Physicochemical and Hydrogeological Characteristics of Water Obtained From Borehole and Rivers in Okada and Environs, Edo State, Nigeria

The consumption of unsafe water is detrimental to human health. It is therefore important to ascertain the quality and purity of water set out for drinking purpose. This paper therefore investigates the physicochemical and hydrogeological properties of water obtained from boreholes and rivers located at various sites in Okada town and environs, Edo State, Nigeria. The physicochemical parameters were analyzed using standard methods. Results obtained for the physicochemical properties showed that the concentration of phosphate, sulphates, nitrates and manganese in the samples range between (0.0310-0.450) mg/L, (0.05-1.01) mg/L, (0.021-1.0) mg/L and (0.01-0.41) mg/L respectively. The maximum concentration of calcium and sodium in all the samples analyzed was 1.27 mg/L and 8.65mg/L. Comparison of the pH value of the samples shows they are all acidic in nature, with pH values which ranges from (4.3 – 6.0). In all the samples analyzed, it was observed that no trace of heavy metal (lead) was found except in Iguvinyoba River (down-stream) with a concentration of 0.001 mg/L. The biological oxygen demand (BOD) and chemical oxygen demand (COD) values from all the water samples are below the WHO standard while the dissolved oxygen (DO) values are above the WHO standard. The results revealed that physicochemical parameters were slightly below WHO and NAFDAC standards for drinking water, except for the high iron (Fe) content at Usen. Thus from established standard, the borehole and river water in the study area will need some treatment to render it suitable for drinking. Keywords: physicochemical, hydrogeological properties, quality, drinking purpose, borehole and river water.

Unimproved water, sanitation, and hygiene (WASH) and common childhood illness in Myanmar: evidence from a nationally representative survey

Background Inadequate Water, Hygiene and Sanitation (WASH) is one of the major risk factors of common childhood illness - namely, diarrhea, cough, fever, and acute respiratory infection, in many Southeast Asian countries. This study aims to analyze the relationship between WASH-related indicators and common childhood illnesses; cough, fever and diarrhea among under-five children in Myanmar. Methods The data of 4,815 under-fives was extracted from the first Myanmar Demographic and Health Survey 2015-16. Chi-square test was used to determine association between WASH and sociodemographic variables and each common childhood illness. The bivariate logistic regression was used to obtain the unadjusted odds of cough, fever, and diarrhea for each wash indicator, i.e., Unimproved toilet, access to unsafe water, and unsafe feces disposal. Further multivariate regression was employed and adjusted odd ratios were obtained of each common childhood illness after accounting for all wash indicators. Results Among under-five children, 16.2% suffered from cough, 16% suffered from fever, and 10.4% from diarrhea. Unimproved toilet facility was associated with cough (Adjusted Odds Ratio (AOR) 1.15, 95% CI:0.86, 1.22), and fever (AOR 1.03, 95% CI:0.86,1.23) among children. Children from households practicing unimproved child feces disposal had 21%, 18%, and 52% higher odds of experiencing cough (95% CI:1.12, 1.31), fever (95% CI: 0.99,1.29), and diarrhea (95% CI:1.21, 1.68), respectively. A combination of unimproved water, toilet and child feces disposal facilities was associated with cough (AOR 1.34, 95% CI:1.03, 1.73), fever (AOR 1.12, 95% CI:0.86, 1.19) and diarrhea (AOR 1.18, 95% CI:0.95, 1.29). Conclusion Inadequate improved WASH significantly contributed to common childhood illnesses among children in Myanmar. Findings suggest that WASH interventions should be targeted to the poor and rural areas where the prevalence of both childhood illnesses and unimproved WASH facilities were reportedly high.