scholarly journals Tiered approach for integral assessment of sanitation, water supply and hygiene health risks in rural Brasil

2019 ◽  
Author(s):  
Mario Rodrigues Peres ◽  
◽  
James Edbon ◽  
Huw Taylor ◽  
Sarah Purnell ◽  
...  
Keyword(s):  
Water Supply ◽  
Health Risks ◽  
Tiered Approach ◽  
Integral Assessment

Safe water, household income and health challenges in Ugandan homes that harvest rainwater

Water Policy ◽  
2012 ◽  
Vol 14 (6) ◽  
pp. 977-990 ◽  
Author(s):  
David Baguma ◽  
Jamal H. Hashim ◽  
Syed M. Aljunid ◽  
Michael Hauser ◽  
Helmut Jung ◽  
...  
Keyword(s):  
Water Supply ◽  
Health Risks ◽  
Water Shortage ◽  
Information Support ◽  
Household Expenditures ◽  
Safe Water ◽  
Influence Of Water ◽  
Supply Equipment

Having access to a safe water supply is important to improve a person's quality of life. We examine the relationship between the influence of water availability on monthly household expenditures (the dependent variable) and independent variables such as household characteristics, tank size, usage instructions and post-construction guidance, including the management of water-related health risks. The sample consisted of 301 respondents who harvest rainwater in Uganda. A multiple regression analysis was used to analyse the data. The findings show that post-construction guidance and tank size were significant variables. This study suggests the need for a follow-up to improve health after the installation of water supply equipment, i.e., to provide information about water risks, foster reading norms and facilitate the availability and affordability of information sources, e.g., subsidised newspapers and information support devices (computers). Additionally, this study shows the possibility of increased savings due to reduced expenditures on water from vendors and the management of water-related health risks caused by a water shortage, e.g., dehydration. Overall, the study reveals two possible ways to advance policy and health in developing countries: (1) ensuring sufficient post-construction guidance for all water resources; and (2) ensuring a sustainable supply of adequate safe water in households.

Health risks of pollutants in the surface water sources of the centralized drinking water supply in Zhengzhou, China

2012 ◽  
Vol 37 (3) ◽  
pp. 253-264
Author(s):  
Qingli Cheng ◽  
Hui Wu ◽  
Wenlin Wang ◽  
Yanjü Wu ◽  
Hongli Li ◽  
...  
Keyword(s):  
Drinking Water ◽  
Surface Water ◽  
Water Supply ◽  
Health Risks ◽  
Water Sources ◽  
Drinking Water Supply

scholarly journals Analyzing health risks caused by contaminated drinking water (experience gained in Samara region)

2021 ◽  
pp. 41-51
Author(s):  
O.V. Sazonova Sazonova ◽  
◽  
A.K. Sergeev ◽  
L.V. Chupakhina ◽  
T.K. Ryazanova ◽  
...  
Keyword(s):  
Drinking Water ◽  
Water Supply ◽  
Health Risks ◽  
Hazard Quotient ◽  
Actual Data ◽  
Controlled Study ◽  
Water Supply Systems ◽  
Contaminated Drinking Water ◽  
Supply Systems

Environmental contamination is still a pressing issue, in particular, contaminated drinking water sources and contaminated drinking water from centralized communal water supply systems, since it produces negative effects on human health. Our research goal was to estimate probable impacts exerted on overall morbidity in Samara by quality of drinking water taken from centralized communal water supply systems as a most significant environmental factor. Our research tasks included taking and analyzing drinking water samples from centralized communal water supply systems; calculating carcinogenic and non-carcinogenic health risks caused by analyzed chemicals. To fulfill the tasks and achieve the goals, in 2018–2019 we performed sanitary-chemical analysis of drinking water quality as per 20 sanitary-chemical parameters; our research object was drinking water taken from centralized communal water supply systems in 7 districts in Samara. Obtained actual data on contamination of water taken from centralized water supply networks in Samara were used as primary basis for calculating hazard indexes and carcinogenic risk coefficients using conventional exposure scenarios. In our research we revealed that maximum total non-carcinogenic hazard quotient was determined by arsenic and petroleum products introduction. Assessment of carcinogenic risks caused by contaminants in drinking water revealed that total health risk for children younger than 18 was within the second range as per its median; total carcinogenic risks for adults, within the third range. At the same time, arsenic contents did not exceed hygienic standards in all examined samples. So, we assessed carcinogenic and non-carcinogenic risks, basing on actual data on quality of drinking water taken from centralized communal water supply systems. It seems vital to perform a wider-scale controlled study in several regions in order to assess significance of revealed factors for morbidity among population.

scholarly journals A model for prediction of microbial disease burden of water supply options in Bangladesh

2015 ◽  
Vol 4 (1) ◽  
pp. 31-36 ◽  
Author(s):  
M Feroze Ahmed
Keyword(s):  
Escherichia Coli ◽  
Drinking Water ◽  
Infectious Diseases ◽  
Water Supply ◽  
Health Risks ◽  
Disease Burden ◽  
Microbial Pathogens ◽  
Indicator Organisms ◽  
Statistical Parameters ◽  
Rural Bangladesh

Infectious diseases caused by microbial pathogens are most common and widespread health risks are associated with drinking water. This paper presents a model for prediction of disease burden for ingestion of microbial pathogens through drinking water in rural Bangladesh. The concentration of indicator organisms (Thermotolerant coliform or Escherichia coli) in cfu/100ml were taken as input in the model and estimated disease burden in ?DALYs with some relevant statistical parameters are obtained as output. The model has been found useful in quantifying relative disease burden of microbial pathogens, comparing safety of different water supply options and delineating the interventions needed to reduce disease burden from drinking water. DOI: http://dx.doi.org/10.3329/sjm.v4i1.22759 Stamford Journal of Microbiology, Vol.4(1) 2014: 31-36

scholarly journals Assessing health risks associated with drinking water quality (on the example of regions in Bashkortostan where oil fields are located)

2021 ◽  
pp. 33-40
Author(s):  
L.R. Rakhmatullina ◽  
◽  
R.A. Suleymanov ◽  
T.K. Valeev ◽  
Z.B. Baktybaeva ◽  
...  
Keyword(s):  
Water Quality ◽  
Drinking Water ◽  
Water Supply ◽  
Water Intake ◽  
Health Risks ◽  
Drinking Water Quality ◽  
Oil Fields ◽  
Laboratory Research ◽  
Water Supply Systems ◽  
Supply Systems

Providing population with drinking water conforming to all hygienic standards is a pressing issue on territories where oil fields are located. In our research we focus on assessing water supply sources located in areas with oil fields and health risks for people who consume water from centralized water supply systems aimed at providing drinking water and water for communal use. Our research goal was to hygienically assess health risks for people living in areas where oil fields were located in Bashkortostan; these health risks were caused by people consuming water from centralized water supply systems. Our analysis was based on data obtained via laboratory research performed by «Bashkommunvodokanal» water supply facility and Bashkortostan Center for Hygiene and Epidemiology; the data were collected in 2016–2018 in Chishminskiy and Dablekanovskiy districts. Risks associated with drinking water quality were assessed taking into account all the requirements fixed in the Guide R 2.1.10.1920-04. Organoleptic risks related to water olfactory-reflex properties were assessed according to procedures fixed in the Methodical Guidelines MR 2.1.4.0032-11. Overall carcinogenic health risk assessed in Chishminskiy and Davlekanovskiy districts was higher than maximum permissible level due to chromium6+, DDT, lindane and arsenic detected in drinking water. Population carcinogenic risks amounted to 7 additional cases for people who consumed water supplied via water intake in Alkino-2 settlement; 69 additional cases, Isaakovskiy water intake; 76 additional cases, Kirzavodskoy water intake. Results obtained via non-carcinogenic risk assessment performed for all examined territories indicate that diseases might occur in the hormonal system (HQ =3.04–4.56), liver (HQ =2.3–3.83), and kidneys (HQ =1.47–2.45). The highest non-carcinogenic risks were detected for people who took water from Kirzavodskoy water intake in Davlekanovskiy district. We also detected unacceptable organoleptic risk (higher than 0.1) caused by excessive water hardness in Chishminskiy district. All the obtained results call for developing and implementing a set of activities aimed at reducing health risks for population.

scholarly journals Analysis of drinking water quality from the standpoint of health risks

2018 ◽  
Vol 143 ◽  
pp. 04004
Author(s):  
Valentina Nikiforova ◽  
Elena Vidishcheva
Keyword(s):  
Drinking Water ◽  
Water Supply ◽  
Health Risks ◽  
Age Groups ◽  
Oral Intake ◽  
Risk Level ◽  
Special Method ◽  
Irkutsk Region ◽  
Public Drinking Water ◽  
System Risk

The paper presents a hygienic quality assessment of water from sources in the Irkutsk Region (Russia) used for public drinking water supply. The aim of the study is to assess health risks to the population of Bratsk and the Bratsk District, which is associated with the exposure to chemicals coming with drinking water from the public water supply system. Risk of occurrence and development of non-carcinogenic effects is assessed for separate age groups using a special method. Based on the risk assessment methodology, non-carcinogenic risks for children and adults are described in quantitative terms. The total health risk of the test groups associated with the oral intake of chemicals with drinking water is estimated as negligible and, therefore, does not need to be reduced through additional measures. Lead and fluoride contents in drinking water are the major contributors to the risk level (59.5–68.4%). There is a risk of developing blood disorders and cardiovascular diseases in children of Bratsk (HI = 1.19), as well as bone tissue and teeth disorders in children of Bikey village, Bratsk District (HI = 1.10).

scholarly journals Health Risks for the Population of the Voronezh Region Related to Drinking Water Quality

2020 ◽  
pp. 37-42
Author(s):  
II Mehantiev
Keyword(s):  
Water Quality ◽  
Drinking Water ◽  
Water Supply ◽  
Health Risks ◽  
Hazard Identification ◽  
Drinking Water Quality ◽  
Monitoring Site ◽  
Rural Settlements ◽  
Voronezh Region

The object of the study was the centralized drinking water supply system of the Voronezh Region. The purpose of the study was to assess health risks for the population of the Voronezh Region associated with drinking water quality. Materials and methods: The data of the regional drinking water quality monitoring system, which included monthly sampling and testing of water samples at 553 sites in 32 administrative districts and the city of Voronezh for 8 priority sanitary and chemical indicators (total hardness, concentrations of iron, manganese, nitrates, nitrites, boron, fluorine, and ammonium ions) for the years 2010-2019 were used. To achieve the objective based on monitoring studies of drinking water quality in the water distribution system, four generally accepted stages of risk assessment were implemented including hazard identification, evaluation of dose-response relationship, exposure assessment, risk quantification and characterization. When evaluating the exposure, four calculation scenarios were considered and probable body burdens for children and adults were calculated using the average long-term concentration and 95 percentile of concentration in a separate administrative territory. Results: Regional non-carcinogenic risks estimated on the basis of the average regional concentrations of priority pollutants did not exceed acceptable values (HQ < 1) for 6 of 7 ingredients. Unacceptable risk levels were observed in two of 33 administrative districts due to the presence of nitrates in drinking water (HQ ranged 1.34 to 2.95 for children and equaled 1.26 for adults). Detailed information for separate settlements (control points) using an aggravated scenario helped identify 4 rural settlements in 2 administrative districts with unacceptable risks for the child population of iron in drinking water (HQ up to 2.31), 230 settlements in 27 districts – of nitrates (HQ up to 9.51), one settlement – of boron (HQ = 1.17), and 35 settlements in 13 districts – of fluorine (HQ up to 4.17). Discussion: Summarizing the results of the regional studies of health risks for the population associated with the quality of drinking water, one can testify the shift of the problem to rural settlements where water treatment is practically null. The use of average concentrations of chemicals in drinking water in administrative districts proved to be insufficiently objective and having significant uncertainties. The reduction of uncertainties was achieved by a detailed review of the information for each monitoring site and the use of the 95th percentile concentration of the chemical to assess the health risks for children and adults. Conclusions: With a sufficient degree of certainty, the priority regional indicators determining the unacceptable level of non-carcinogenic risk (HQ > 1) associated with the quality of drinking water include elevated levels of nitrates, fluorine, boron, and iron. Key words: drinking water, centralized water supply, water quality, public health risk.

Effective monitoring of trihalomethanes in water supply systems

2020 ◽  
Vol 5 (4) ◽  
pp. 1-11
Author(s):  
(Sathaa) Arumugam Sathasivan ◽  
George Kastl ◽  
Ian Fisher
Keyword(s):  
Public Health ◽  
Water Supply ◽  
Health Risks ◽  
Water Utilities ◽  
Water Supply Systems ◽  
Health Safety ◽  
Microbiological Safety ◽  
Supply Systems

To ensure public health safety, water supplied to consumers should meet both microbiological and disinfection by-product (DBP) requirements. Water utilities are ensuring microbiological safety of water, but there is considerable variation in monitoring and reporting trihalomethane (THM) levels across Australia, for the obvious reasons of cost and lack of resources and skills to monitor total THMs (TTHMs). Such practices lead to neglecting the long-term health risks from DBPs, which are often exacerbated by overdosing chlorine.

scholarly journals Surveillance of the drinking water quality din the Legal Amazon: analysis of vulnerable areas

2016 ◽  
Vol 24 (1) ◽  
pp. 14-20 ◽  
Author(s):  
Cíntia Honório Vasconcelos ◽  
Rosane Cristina de Andrade ◽  
Camila Vicente Bonfim ◽  
Rodrigo Matias de Sousa Resende ◽  
Fernanda Barbosa de Queiroz ◽  
...  
Keyword(s):  
Water Quality ◽  
Drinking Water ◽  
Water Supply ◽  
Health Risks ◽  
Health Monitoring ◽  
Drinking Water Quality ◽  
Current Status ◽  
Historical Account ◽  
Waterborne Illnesses ◽  
Northern Brazil

Abstract Low quality drinking water has been directly correlated to the occurrence of waterborne illnesses in northern Brazil. To minimize health risks related to the water supply, the Ministry of Health has proposed the implementation of the National Program for the Surveillance of Drinking Water Quality (VIGIAGUA) in Brazilian municipalities. Focusing on the Legal Amazon region, the present study demonstrates a historical account of the percentage of municipalities included in the VIGIAGUA program in place, which in 2013 reached 45.1% of the region municipalities. This study also identifies vulnerable areas in terms of the water quality in the states of Amapá, Amazonas and Maranhão. With this analysis of the current status of the drinking water supply, this study intends to support and direct the strategic efforts of environmental health monitoring in the region.

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