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Author: National Research Council
Publisher: National Academies Press
ISBN: 0309091225
Category : Nature
Languages : en
Pages : 329
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Book Description
Recent and forecasted advances in microbiology, molecular biology, and analytical chemistry have made it timely to reassess the current paradigm of relying predominantly or exclusively on traditional bacterial indicators for all types of waterborne pathogens. Nonetheless, indicator approaches will still be required for the foreseeable future because it is not practical or feasible to monitor for the complete spectrum of microorganisms that may occur in water, and many known pathogens are difficult to detect directly and reliably in water samples. This comprehensive report recommends the development and use of a "tool box" approach by the U.S Environmental Protection Agency and others for assessing microbial water quality in which available indicator organisms (and/or pathogens in some cases) and detection method(s) are matched to the requirements of a particular application. The report further recommends the use of a phased, three-level monitoring framework to support the selection of indicators and indicator approaches.Â
Author: National Research Council
Publisher: National Academies Press
ISBN: 0309091225
Category : Nature
Languages : en
Pages : 329
Get Book Here
Book Description
Recent and forecasted advances in microbiology, molecular biology, and analytical chemistry have made it timely to reassess the current paradigm of relying predominantly or exclusively on traditional bacterial indicators for all types of waterborne pathogens. Nonetheless, indicator approaches will still be required for the foreseeable future because it is not practical or feasible to monitor for the complete spectrum of microorganisms that may occur in water, and many known pathogens are difficult to detect directly and reliably in water samples. This comprehensive report recommends the development and use of a "tool box" approach by the U.S Environmental Protection Agency and others for assessing microbial water quality in which available indicator organisms (and/or pathogens in some cases) and detection method(s) are matched to the requirements of a particular application. The report further recommends the use of a phased, three-level monitoring framework to support the selection of indicators and indicator approaches.Â
Author: Tapio Katko
Publisher: IWA Publishing
ISBN: 1780408684
Category : Science
Languages : en
Pages : 334
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Book Description
The book addresses the interdisciplinary area of water quality monitoring and binds together interests and competences within sensing technology, system behaviour, business needs, legislation, education, data handling, and artificial response algorithms.
Author: Gordon A. McFeters
Publisher: Springer Science & Business Media
ISBN: 1461244641
Category : Technology & Engineering
Languages : en
Pages : 508
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Book Description
The microbiology of drinking water remains an important worldwide concern despite modem progress in science and engineering. Countries that are more technologically advanced have experienced a significant reduction in water borne morbidity within the last 100 years: This reduction has been achieved through the application of effective technologies for the treatment, disinfec tion, and distribution of potable water. However, morbidity resulting from the ingestion of contaminated water persists globally, and the available ep idemiological evidence (Waterborne Diseases in the United States, G. F. Craun, ed. , 1986, CRC Press) demonstrates a dramatic increase in the number of waterborne outbreaks and individual cases within the United States since the mid-1960s. In addition, it should also be noted that the incidence of water borne outbreaks of unknown etiology and those caused by "new" pathogens, such as Campylobaeter sp. , is also increasing in the United States. Although it might be debated whether these increases are real or an artifact resulting from more efficient reporting, it is clear that waterborne morbidity cannot be ignored in the industrialized world. More significantly, it represents one of the most important causes of illness within developing countries. Approxi mately one-half the world's population experiences diseases that are the direct consequence of drinking polluted water. Such illnesses are the primary cause of infant mortality in many Third World countries.
Author:
Publisher:
ISBN: 9789241550376
Category :
Languages : en
Pages : 149
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Book Description
Improved housing conditions can save lives, prevent disease, increase quality of life, reduce poverty, and help mitigate climate change. Housing is becoming increasingly important to health in light of urban growth, ageing populations and climate change. The WHO Housing and health guidelines bring together the most recent evidence to provide practical recommendations to reduce the health burden due to unsafe and substandard housing. Based on newly commissioned systematic reviews, the guidelines provide recommendations relevant to inadequate living space (crowding), low and high indoor temperatures, injury hazards in the home, and accessibility of housing for people with functional impairments. In addition, the guidelines identify and summarize existing WHO guidelines and recommendations related to housing, with respect to water quality, air quality, neighbourhood noise, asbestos, lead, tobacco smoke and radon. The guidelines take a comprehensive, intersectoral perspective on the issue of housing and health and highlight co-benefits of interventions addressing several risk factors at the same time. The WHO Housing and health guidelines aim at informing housing policies and regulations at the national, regional and local level and are further relevant in the daily activities of implementing actors who are directly involved in the construction, maintenance and demolition of housing in ways that influence human health and safety. The guidelines therefore emphasize the importance of collaboration between the health and other sectors and joint efforts across all government levels to promote healthy housing. The guidelines' implementation at country-level will in particular contribute to the achievement of the Sustainable Development Goals on health (SDG 3) and sustainable cities (SDG 11). WHO will support Member States in adapting the guidelines to national contexts and priorities to ensure safe and healthy housing for all.
Author: Jamie Bartram
Publisher: IWA Publishing
ISBN: 9781843390251
Category : Science
Languages : en
Pages : 278
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Book Description
Heterotrophic Plate Counts and Drinking-water Safety provides a critical assessment of the role of the Heterotrophic Plate Count (HPC) measurement in drinking water quality management. It was developed from an Expert workshop of 32 scientists convened by the World Health Organization and the WHO/NSF International Collaborating Centre for Drinking Water Safety and Treatment in Geneva, Switzerland. Heterotrophs are organisms, including bacteria, yeasts and moulds, that require an external source of organic carbon for growth. The HPC test (or Standard Plate Count), applied in many variants, is the internationally accepted test for measuring the hetrotrophic microorganism population in drinking water, and also other media. It measures only a fraction of the microorganisms actually present and does not distinguish between pathogens and non-pathogens. High levels of microbial growth can affect the taste and odor of drinking water and may indicate the presence of nutrients and biofilms which could harbor pathogens, as well as the possibility that some event has interfered with the normal production of the drinking water. HPC counts also routinely increase in water that has been treated by an in-line device such as a carbon filter or softener, in water-dispensing devices and in bottled waters and indeed in all water that has suitable nutrients, does not have a residual disinfectant, and is kept under sufficient conditions. There is debate among health professionals as to the need, utility or quantitative basis for health-based standards or guidelines relating to HPC-measured regrowth in drinking water. The issues that were addressed in this work include: the relationship between HPC in drinking water (including that derived from in-line treatment systems, dispensers and bottled water) and health risks for the general public the role of HPC as an indirect indicator or index for pathogens of concern in drinking water the role of HPC in assessing the efficacy and proper functioning of water treatment and supply processes the relationship between HPC and the aesthetic acceptability of drinking water. Heterotrophic Plate Counts and Drinking-water Safety provides valuable information on the utility and the limitations of HPC data in the management and operation of piped water systems as well as other means of providing drinking water to the public. It is of particular value to piped public water suppliers and bottled water suppliers, manufacturers and users of water treatment and transmission equipment and inline treatment devices, water engineers, sanitary and clinical microbiologists, and national and local public health officials and regulators of drinking water quality.
Author: Edwin E. Geldreich
Publisher: CRC Press
ISBN: 9781566701945
Category : Technology & Engineering
Languages : en
Pages : 516
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Book Description
Hidden problems, buried deep in the pipe networks of water distribution systems, are very serious potential threats to water quality. Microbial Quality of Water Supply in Distribution Systems outlines the processes and issues related to the degradation of water quality upon passage through networks of pipes, storage reservoirs, and standpipes on its way to the consumer. The risks associated with biofilm accumulation, bacteria, and other contaminants are discussed in great detail. In addition to its excellent microbiological coverage of organisms in drinking water and biofilms in distribution systems, Microbial Quality of Water Supply in Distribution Systems provides clear treatments of the technical and public communication issues most commonly affecting the quality of water and water supply systems. The inclusion of numerous case histories in this new book makes it a complete reference source for anyone concerned with water quality and water distribution systems.
Author: World Health Organization
Publisher: World Health Organization
ISBN: 9789241545037
Category : Medical
Languages : en
Pages : 260
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Book Description
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.
Author: John DeZuane
Publisher: John Wiley & Sons
ISBN: 9780471287896
Category : Science
Languages : en
Pages : 600
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Book Description
"Well-written and informative." --Richard Lewis, Lewis Information Systems "This [book] combines information which could possibly haverequired as many as four reference sources in the past." --Steven C. Messer In its first edition, John De Zuane's popular reference drewwide praise for being an insightful theoretical resource. Now, inthe second edition of Handbook of Drinking Water Quality, DeZuane builds on that legacy with the same practical and conceptualemphases, adding a wealth of new information that providesimmediate access to the data and guidelines needed to * understand the impact of drinking water parameters on publichealth * help build and operate water supply facilities * conduct reliable drinking water sampling, monitoring, andanalytical evaluation * implement potability standards from the source to the treatmentfacility, to storage, to the tap * write new standards and expand/modify existing standards asquickly as needed Preventing contamination of drinking water requires amultidisciplinary perspective, one that incorporates elements ofbacteriology, chemistry, physics, engineering, public health,preventive medicine, and control and evaluation management. In aconcise, easy-to-use format, Handbook of Drinking WaterQuality, Second Edition, describes * Data and guidelines from the World Health Organization and theEuropean Community used to develop drinking water standards * U.S. drinking water standards--their physical, chemical,microbiological, and radionuclide parameters and monitoringrequirements * EPA-approved analytical methods and the most effectivetreatment technologies for each contaminant * Critical concepts of water quality control as applied in watertreatment in conventional or chemical treatment plants * Disinfection and fluoridation requirements * Common problems with water distribution systems, including deadends, sediments, bacterial growth, insufficient pressure, and mainbreaks To keep pace with recent breakthroughs in scientific research,water analysis, and program implementation and monitoring, thisSecond Edition features expanded and updated informationon * All drinking water regulations issued since the previousedition in 1990 * Current drinking water standards adopted by the EuropeanCommunity * Lead poisoning, radon, and Cryptosporidium * Compulsory water treatment for lead and copper * Coliform Rule compliance (disinfection and filtration) * Trihalomethane reduction with ozonation As a quick reference, handbook, and technical manual Handbookof Drinking Water Quality, Second Edition, is an essentialvolume for engineers, water supply and treatment personnel,environmental scientists, public health officials, or anyoneresponsible for assuring the safety of drinking water.
Author: OECD
Publisher: OECD Publishing
ISBN: 9264099476
Category :
Languages : en
Pages : 292
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Book Description
This book provides a state-of-the-art review on approaches and methods used in assessing the microbial safety of drinking-water.
Author: Alexander Omelchenko
Publisher: Springer Science & Business Media
ISBN: 1402031165
Category : Technology & Engineering
Languages : en
Pages : 340
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Book Description
Providing the population of the Earth with safe drinking water is one of the biggest challenges of modern society. In recognition of this problem the United Nations Organization and UNESCO declared 2003 to be the International Year of Freshwater. On November 19-22, 2003, the NATO Advanced Research Workshop (ARW) on “Modern Tools and Methods of Water Treatment for Improving Living Standards” took place in Dnepropetrovsk, Ukraine. Thirty-one participants from 15 countries including Bulgaria, Canada, Croatia, Czech Republic, Denmark, Italy, Lithuania, Moldova, Poland, Romania, Russia, UK, Ukraine, USA, and Uzbekistan attended the meeting. They discussed the scientific concepts and practical means for the solution of the complex social, economic and ecological problems associated with water purification, consumption, conservation, and protection. They also established a network of scientists and specialists to foster further collaboration and the exchange of ideas. The location of the ARW was chosen quite deliberately. The city of Dnepropetrovsk is located on the banks of the Dnieper River and it has a population of about 1. 3 million people. As it is one of the largest industrial centers, it shares all the environmental problems, which are found in the modern Ukraine. In 2001, one in seven of the water samples taken from Ukrainian industrial and drinking water supply systems did not meet sanitary-hygienic standards, and one in twelve did not meet microbiological standards.
