Knowledge Hub

Resources for Global Safe Drinking Water Access

For access to an ever growing library of resources designed to deepen our collective understanding and increase our efficiencies in delivering safe drinking water.

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Showing 1 - 50 of 237 Results
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Benzene and drinking water

Author: Oregon Health Authority
Publication Year: 2015
Resource Type: Factsheet
Health effects of benzene in drinking water, including the potential for increased risk of cancer and other adverse health outcomes.

Cadmium Factsheet

Author: Centers for Disease Control and Prevention (CDC)
Publication Year: 2021
Resource Type: Factsheet
CDC’s Division of Laboratory Sciences coordinates the National Biomonitoring Program (NBP) which offers an assessment of nutritional status and the exposure of the U.S. population to environmental chemicals and toxic substances.

Calibrating an optimal condition model for solar water disinfection in peri-urban household water treatment in Kampala, Uganda

Author: Okurut, Kenan, Wozei, Eleanor, Kulabako, Robinah, Nabasirye, Lillian, Kinobe, Joel
Publication Year: 2012
Resource Type: Journal Article
Discusses a study that was conducted to evaluate the effectiveness of using solar disinfection to treat drinking water in Bolivia. The study found that solar disinfection was successful in reducing the presence of bacteria in the water and producing clean drinking water.

CAWST Biosand Filters Knowledge Base

Author: CAWST
Publication Year: 2023
Resource Type: Resource Center
CAWST's resource highlights biosand filters as an affordable and versatile solution for enhancing water quality. These filters use sand, gravel, and biological materials to eliminate impurities, making them suitable for developing nations, disaster zones, and even developed countries. Regular maintenance ensures their efficiency and safety.

CHALLENGES FOR DISSEMINATION OF SUSTAINABLE TECHNOLOGIES IN INDIA

Author: Mukherjee, Amartya, Agarwal, Nishant, Newman, Charles
Publication Year: 2019
Resource Type: Report
Report on the challenges of disseminating sustainable technologies in India. The report focuses on the barriers to scaling up sustainable technologies in India.

Changes in pediatric diarrhoea and infant mortality rates after a large scale WASH program in Honduras

Author: Deal, Jeffery Lee, Check, Kristen, Chapman, Helena J.
Publication Year: 2015
Resource Type: White Paper Study
A study in rural Bangladesh showed distributing household water filters significantly reduced pediatric diarrhoea and infant mortality. Using a quasi-experimental design, the research had certain limitations like potential bias. The results underscore community engagement's role and the consistent, correct use of filters for optimal health outcomes.

Characteristics of microplastic polymer-derived dissolved organic matter and its potential as a disinfection byproduct precursor

Publication Year: 2020
Resource Type: Journal Article
Microplastics (MP) release dissolved organic matter (MP-DOM) into aquatic systems, especially when they degrade due to UV exposure. This study found that UV increases DOM leaching from additive-free plastics. Unlike typical natural DOM, MP-DOM has low molecular weight and can produce toxic trihalomethanes (similar to natural DOM) when chlorinated. This points to a previously overlooked environmental risk from UV-affected microplastics.

Chemicals That Can Contaminate Tap Water

Publication Year: 2022
Resource Type: Factsheet
Some chemicals can make you sick if they are in your tap water at unsafe levels. Learn which chemicals most often contaminate tap water and cause disease, and how to remove them.

Chitosan Coagulation Pretreatment to Enhance Ceramic Water Filtration for Household Water Treatment

Author: Coleman, Collin Knox, Mai, Eric, Miller, Megan, Sharma, Shalini, Williamson, Clark, Oza, Hemali, Holmes, Eleanor, Lamer, Marie, Ly, Christopher, Stewart, Jill, Sobsey, Mark D., Abebe, Lydia S.
Publication Year: 2021
Resource Type: Journal Article
The role of the gut microbiome in the development of colorectal cancer and discusses the potential of microbiome-based interventions for the prevention and treatment of this disease.

Chloramines and Pool Operation

Author: Centers for Disease Control and Prevention (CDC)
Publication Year: 2022
Resource Type: Blog Post
Chloramines can cause eye irritation, respiratory problems, and skin rashes in swimmers and provides guidance for aquatics professionals on how to prevent and control chloramine formation in swimming pools.

Chloramines Fact Sheet

Author: Water Quality Association (WQA)
Publication Year: 2013
Resource Type: Factsheet
The study found that in-line chlorination can improve household stored drinking water quality and reduce child diarrhoea in low-income urban settings with intermittent water supply.

Cholera

Author: Water Mission
Publication Year: 2023
Resource Type: Factsheet
Discusses the global burden of cholera, a bacterial infection that causes severe diarrhea and dehydration, and can lead to death if left untreated.

Community challenges when using large plastic bottles for Solar Energy Disinfection of Water (SODIS)

Publication Year: 2016
Resource Type: Journal Article
In areas affected by disasters or in developing countries, water-related diseases are a concern. Traditional treatments like boiling can be costly. Solar water disinfection (SODIS) offers an affordable solution, usually using small plastic bottles. However, for larger community needs, 19-L containers have been effective. This paper highlights the importance of large-volume SODIS and discusses its challenges.

Compendium of Water Supply Technologies in Emergencies

Author: Coerver, Arno, Ewers, Lorenz, Fewster, Eric, Galbraith, Declan, Gensch, Robert, Matta, Vijay, Peter, Maryna
Publication Year: 2021
Resource Type: Technical Guide
A collaborative guide providing insights and solutions for water supply in emergency situations, including strategies for ensuring water availability, minimizing waste, and providing safe access to water points.

Contamination of Groundwater

Author: Water Science School
Publication Year: 2023
Resource Type: Blog Post
Causes of groundwater contamination, the potential health effects of contaminated groundwater, and the methods used to prevent and treat groundwater contamination.

Copper

Publication Year: 2022
Resource Type: Factsheet
Copper overview for health professionals. Research health effects, dosing, sources, deficiency symptoms, side effects, and interactions here.

Copper Fact Sheet

Author: Water Quality Association (WQA)
Publication Year: 2013
Resource Type: Factsheet
Health risks associated with exposure to copper in drinking water, as well as the sources and levels of copper in water.

Core questions and indicators for monitoring WASH in health care facilities in the Sustainable Development Goals

Author: Pickering, Amy J, Crider, Yoshika, Sultana, Sonia, Swarthout, Jenna, Goddard, Frederick GB, Islam, Syed Anjerul, Sen, Shreyan, Ayyagari, Raga, and Luby, Stephen P.
Publication Year: 2018
Resource Type: Report
Study conducted in urban Bangladesh that evaluates the effectiveness of in-line drinking water chlorination in reducing child diarrhea, and discusses the study design, limitations, and statistical analysis plan.

Design Your Product for Manufacturability and High Quality

Author: Sellers, Charlie, Vinyard, Ryan
Publication Year: 2019
Resource Type: Blog Post
Provides tips for designing products that are easy to manufacture, including simplifying designs, minimizing the number of parts, and using standard components.

Determinants of consistency of use of household water filters in emergencies

Author: Wainaina, George Kiambuthi, Ochieng, Fredrick, Peter, Maryna, Raude, James Messo, Meierhofer, Regula, Marks, Sara J.
Publication Year: 2023
Resource Type: Journal Article
Point-of-use water treatments like ceramic filters and chlorination enhance water quality and curb waterborne diseases in low-income nations. Their effectiveness is swayed by user behavior, maintenance, and water source quality. Incorporating community-based strategies, involving local stakeholders, amplifies the longevity and efficacy of water interventions.

Does the reuse of PET bottles during solar water disinfection pose a health risk due to the migration of plasticisers and other chemicals into the water?

Publication Year: 2008
Resource Type: Technical Guide
Solar water disinfection (SODIS) is a low-cost method used in developing countries, treating water using sunlight in polyethylene terephthalate (PET) bottles for 6 hours. Concerns arose about chemical release from PET. This study assessed the transfer of substances from PET to water under SODIS conditions. Results indicated low concentrations of potentially harmful chemicals, with the SODIS procedure deemed safe regarding human exposure to these substances.

Domestic Water Quality Criteria

Author: Self, J.R.
Publication Year: 2013
Resource Type: Factsheet
Information on the different types of contaminants that can be found in drinking water, their sources, and the health effects of consuming water with high levels of these contaminants.

Drinking Water Advisory: Consumer Acceptability Advice and Health Effects Analysis on Sodium

Publication Year: 2003
Resource Type: Report
The EPA Office of Water has issued an advisory regarding sodium chloride and other salts in drinking water. While the advisory summarizes health hazards and taste problems linked to sodium, it doesn't recommend a reference dose due to limited data. Water suppliers must monitor sodium levels periodically and report results to health officials, ensuring public awareness of sodium content in their drinking water.

Drinking Water Quality and Health

Author: Modafferi, A., Ramsdell, H., Bunning, M., Shackelton, E.
Publication Year: 2022
Resource Type: Factsheet
Information on the importance of clean drinking water for human health and the potential health risks associated with consuming water that is contaminated with harmful substances.

Drinking Water Quality and Public Health

Author: Li, Peiyue, Wu, Jianhua
Publication Year: 2019
Resource Type: Journal Article
This editorial introduction reviewed some latest research on drinking water quality and public health, summarized briefly the main points of each contribution in this issue, and then some research fields/directions were proposed to boost further scientific research in drinking water quality and public health.

Drinking Water Safety: Is there Uranium in My Drinking Water

Author: Environmental Public Health Alberta Health Services
Publication Year: 2022
Resource Type: Blog Post
In some areas of Alberta, drinking water contains uranium, a naturally occurring element with potential health risks. The website advises testing for uranium presence through private labs and discusses treatments like reverse osmosis and ion exchange. In extreme cases, changing the water source is recommended.

Drinking-water

Author: World Health Organization (WHO)
Publication Year: 2022
Resource Type: Factsheet
The fact sheet outlines the WHO's guidelines for safe drinking water, which include measures to ensure the quality of water at the source, during transport and storage, and at the point of use.

E4C Trend Analysis: Small-Scale Water Purification

Author: Engineering for Change
Publication Year: 2018
Resource Type: Video
The video discusses small-scale water treatment solutions appropriate for people living in poverty as part of the UN's Sustainable Development Goal 6. The focus is on "Devices, Flasks & Tabs" and the lower end of "Plants & Kiosks."

ECHIDNA (Emerging CHemIcals Database for National Awareness): a framework to prioritise contaminants of emerging concern in water

Author: Neale, Peta Anne, Melvin, Steven D., Hancock, Marty, Leusch, Frederic D. L.
Publication Year: 2023
Resource Type: Journal Article
The article describes the development of a database called ECHIDNA (Emerging Chemicals Database for National Assessment), which aims to provide information on emerging chemicals and their potential risks to human health and the environment.

EFFECT OF IN-LINE DRINKING WATER CHLORINATION AT THE POINT OF COLLECTION ON CHILD DIARRHOEA IN URBAN BANGLADESH: A DOUBLE-BLIND, CLUSTER-RANDOMISED CONTROLLED TRIAL

Publication Year: 2019
Resource Type: Journal Article
In a Bangladesh trial, chlorine devices were added to water points to combat child diarrhoea. Results showed a reduction from 10% in the control to 7.5% in the treated group. Passive chlorination at collection points could be a viable strategy for safer water in low-income urban areas. Funded by The World Bank.

Efficiency of a multi-barrier household system for surface water treatment combining a household slow sand filter to a Mesita Azul® ultraviolet disinfection device

Author: Garcia, Lucas A. T., Silva, Fernando L., Freitas, Bárbara L. S., Fava, Natália N. M., Reygadas, Fermín, Sabogal-Paz, Lyda P.
Publication Year: 2022
Resource Type: Journal Article
The study evaluated a multi-barrier household water treatment system for 113 days, targeting improved drinking water quality in low-income regions. The system combined a pre-treatment, an intermittent slow sand filter, and a UV disinfection device. It effectively reduced turbidity, total coliforms, and E. coli, with the sand filter playing a significant role. The UV disinfection further eliminated remaining bacteria, ensuring safe drinking water.

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