Drinking Water Quality and Human Health

Drinking Water Quality and Human Health PDF

Author: Patrick Levallois

Publisher: MDPI

Published: 2019-04-04

Total Pages: 374

ISBN-13: 3038977268

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The quality of drinking water is paramount for public health. Despite important improvements in the last decades, access to safe drinking water is not universal. The World Health Organization estimates that almost 10% of the population in the world do not have access to improved drinking water sources. Among other diseases, waterborne infections cause diarrhea, which kills nearly one million people every year, mostly children under 5 years of age. On the other hand, chemical pollution is a concern in high-income countries and an increasing problem in low- and middle-income countries. Exposure to chemicals in drinking water may lead to a range of chronic non-communicable diseases (e.g., cancer, cardiovascular disease), adverse reproductive outcomes, and effects on children’s health (e.g., neurodevelopment), among other health effects. Although drinking water quality is regulated and monitored in many countries, increasing knowledge leads to the need for reviewing standards and guidelines on a nearly permanent basis, both for regulated and newly identified contaminants. Drinking water standards are mostly based on animal toxicity data, and more robust epidemiologic studies with accurate exposure assessment are needed. The current risk assessment paradigm dealing mostly with one-by-one chemicals dismisses the potential synergisms or interactions from exposures to mixtures of contaminants, particularly at the low-exposure range. Thus, evidence is needed on exposure and health effects of mixtures of contaminants in drinking water. Finally, water stress and water quality problems are expected to increase in the coming years due to climate change and increasing water demand by population growth, and new evidence is needed to design appropriate adaptation policies. This Special Issue of International Journal of Environmental Research and Public Health (IJERPH) focuses on the current state of knowledge on the links between drinking water quality and human health.

Safe Water in Healthcare

Safe Water in Healthcare PDF

Author: James T. Walker

Publisher: Elsevier

Published: 2023-03-20

Total Pages: 448

ISBN-13: 0323904939

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Safe Water in Healthcare: A Practical and Clinical Guide enables users from different disciplines to understand all types of waterborne hazards that can pose a risk to those who might be exposed, the events which cause them to be present, what may precipitate an increase in their levels that may cause harm, and how they can be avoided or managed to reduce risk. The handbook highlights microorganisms that can cause infections, modes of transmission, the infections they cause, and risks. The book's authors draw from their extensive practical experience assisting with day-to-day problems that range from minor issues to outbreaks. The book includes case studies on the growth of biofilms and where they cause problems in water systems as well as providing practical answers to a majority of issues that arise in healthcare water and drainage systems. This is an accessible handbook that fills the gaps for those without technical knowledge for a complex but important area of infection control. It provides practical guidance for professionals who are required to design, manage and maintain water systems and help them manage associated infection outbreaks. Discusses waterborne pathogens, their detection, identification and surveillance and describes the extent and range of recognized and emerging waterborne microorganisms as well as the diseases that occur and consequences to patients and staff Covers hazards that can cause harm within water systems and associated equipment, the circumstances or factors that increase the risks, and the multiple modes of transmission of waterborne pathogens Explains the importance of good design, including the type of design, management, hardware and software that can help manage and control the presence of waterborne pathogens. Highlights who needs to be involved at each stage to ensure that patients are kept safe from waterborne pathogens, taking into account current legislation and best practices guidance

Guidelines for Drinking-water Quality

Guidelines for Drinking-water Quality PDF

Author: World Health Organization

Publisher: World Health Organization

Published: 1993

Total Pages: 260

ISBN-13: 9789241545037

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This volume describes the methods used in the surveillance of drinking water quality in the light of the special problems of small-community supplies, particularly in developing countries, and outlines the strategies necessary to ensure that surveillance is effective.

Management of Legionella in Water Systems

Management of Legionella in Water Systems PDF

Author: National Academies of Sciences, Engineering, and Medicine

Publisher: National Academies Press

Published: 2020-02-20

Total Pages: 291

ISBN-13: 0309493854

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Legionnaires' disease, a pneumonia caused by the Legionella bacterium, is the leading cause of reported waterborne disease outbreaks in the United States. Legionella occur naturally in water from many different environmental sources, but grow rapidly in the warm, stagnant conditions that can be found in engineered water systems such as cooling towers, building plumbing, and hot tubs. Humans are primarily exposed to Legionella through inhalation of contaminated aerosols into the respiratory system. Legionnaires' disease can be fatal, with between 3 and 33 percent of Legionella infections leading to death, and studies show the incidence of Legionnaires' disease in the United States increased five-fold from 2000 to 2017. Management of Legionella in Water Systems reviews the state of science on Legionella contamination of water systems, specifically the ecology and diagnosis. This report explores the process of transmission via water systems, quantification, prevention and control, and policy and training issues that affect the incidence of Legionnaires' disease. It also analyzes existing knowledge gaps and recommends research priorities moving forward.

Safe Management of Wastes from Health-care Activities

Safe Management of Wastes from Health-care Activities PDF

Author: World Health Organization

Publisher: World Health Organization

Published: 2014

Total Pages: 327

ISBN-13: 9241548568

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This is the second edition of the WHO handbook on the safe, sustainable and affordable management of health-care waste--commonly known as "the Blue Book". The original Blue Book was a comprehensive publication used widely in health-care centers and government agencies to assist in the adoption of national guidance. It also provided support to committed medical directors and managers to make improvements and presented practical information on waste-management techniques for medical staff and waste workers. It has been more than ten years since the first edition of the Blue Book. During the intervening period, the requirements on generators of health-care wastes have evolved and new methods have become available. Consequently, WHO recognized that it was an appropriate time to update the original text. The purpose of the second edition is to expand and update the practical information in the original Blue Book. The new Blue Book is designed to continue to be a source of impartial health-care information and guidance on safe waste-management practices. The editors' intention has been to keep the best of the original publication and supplement it with the latest relevant information. The audience for the Blue Book has expanded. Initially, the publication was intended for those directly involved in the creation and handling of health-care wastes: medical staff, health-care facility directors, ancillary health workers, infection-control officers and waste workers. This is no longer the situation. A wider range of people and organizations now have an active interest in the safe management of health-care wastes: regulators, policy-makers, development organizations, voluntary groups, environmental bodies, environmental health practitioners, advisers, researchers and students. They should also find the new Blue Book of benefit to their activities. Chapters 2 and 3 explain the various types of waste produced from health-care facilities, their typical characteristics and the hazards these wastes pose to patients, staff and the general environment. Chapters 4 and 5 introduce the guiding regulatory principles for developing local or national approaches to tackling health-care waste management and transposing these into practical plans for regions and individual health-care facilities. Specific methods and technologies are described for waste minimization, segregation and treatment of health-care wastes in Chapters 6, 7 and 8. These chapters introduce the basic features of each technology and the operational and environmental characteristics required to be achieved, followed by information on the potential advantages and disadvantages of each system. To reflect concerns about the difficulties of handling health-care wastewaters, Chapter 9 is an expanded chapter with new guidance on the various sources of wastewater and wastewater treatment options for places not connected to central sewerage systems. Further chapters address issues on economics (Chapter 10), occupational safety (Chapter 11), hygiene and infection control (Chapter 12), and staff training and public awareness (Chapter 13). A wider range of information has been incorporated into this edition of the Blue Book, with the addition of two new chapters on health-care waste management in emergencies (Chapter 14) and an overview of the emerging issues of pandemics, drug-resistant pathogens, climate change and technology advances in medical techniques that will have to be accommodated by health-care waste systems in the future (Chapter 15).

Safe Water in Healthcare Premises

Safe Water in Healthcare Premises PDF

Author: Great Britain: Department of Health: Estates and Facilities Division

Publisher:

Published: 2016-05-31

Total Pages: 96

ISBN-13: 9780113230310

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This HTM gives comprehensive advice and guidance to healthcare management, design engineers, WSGs, estates managers and operations managers on the legal requirements, design applications, maintenance and operation of hot and cold water supply, storage and distribution systems in all types of healthcare premises. It is equally applicable to both new and existing sites. It has been revised to take account of HSE's revision of its Approved Code of Practice and guidance on regulations 'Legionnaires' disease: the control of legionella bacteria in water systems (L8)' and its complementary technical guidance HSG274. The document comprises three parts. This part (Part B) provides comprehensive guidance on measures to control waterborne pathogens such as Pseudomonas aeruginosa Stenotrophomonas maltophilia, Mycobacteria as well as Legionella. Part A (ISBN 9780113230303) covers design & installation, Part C (ISBN 9780113230327) covers water safety in augmented care settings. HTM 04-01: Supplement - 'Performance specification D 08: thermostatic mixing valves (healthcare premises)' contains guidance on the on-site testing and commissioning of thermostatic mixing valves

Guidelines for Drinking-water Quality

Guidelines for Drinking-water Quality PDF

Author: World Health Organization

Publisher: World Health Organization

Published: 2004-08-31

Total Pages: 542

ISBN-13: 9789241546386

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This is the third edition of the WHO's guidelines which are used by countries worldwide to set standards for the regulation of drinking water quality and effective approaches to water safety management. This revised edition has been updated to take account of recent developments in risk assessment and management. Topics discussed include: a framework for drinking water safety and discussion of the roles and responsibilities of different stakeholders, such as national regulators, water suppliers and independent surveillance agencies; guidance on microbial safety of drinking water through safety plans; new scientific information on chemicals, waterborne pathogens and individual chemical hazards of actual or potential concern. It also considers the application of the guidelines in specific circumstances, such as in emergencies and disasters, and to specific applications, such as bottled water. It also contains information on over 130 documents which substantiate or explain the content of the Guidelines, and on good practice guidance in achieving drinking-water safety.

Health Effects of Drinking Water Contaminants

Health Effects of Drinking Water Contaminants PDF

Author: Edward J. Calabrese

Publisher: CRC Press

Published: 1989-06-01

Total Pages: 170

ISBN-13: 9780873712231

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This new book evaluates the risks and benefits of the widely used types of drinking water treatment technologies, based on assessment and comparison of chemicals used in treatment, by-products of chemicals, and non-treatment. This valuable material was prepared by independent experts in drinking water treatment technology and toxicology, in conjunction with EPA.