Download or read book Indicators for Waterborne Pathogens written by National Research Council and published by National Academies Press. This book was released on 2004-06-19 with total page 329 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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

Download or read book Microbiological Sensors for the Drinking Water Industry written by Tapio Katko and published by IWA Publishing. This book was released on 2019-02-15 with total page 334 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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.

Download or read book Drinking Water Microbiology written by Gordon A. McFeters and published by Springer Science & Business Media. This book was released on 2013-03-07 with total page 508 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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.

Download or read book WHO Housing and Health Guidelines written by and published by . This book was released on 2018 with total page 149 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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.

Download or read book Microbial Quality of Water Supply in Distribution Systems written by Edwin E. Geldreich and published by CRC Press. This book was released on 1996-01-18 with total page 516 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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.

Download or read book Heterotrophic Plate Counts and Drinking water Safety written by Jamie Bartram and published by IWA Publishing. This book was released on 2003-08-31 with total page 278 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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.

Download or read book Guidelines for Drinking water Quality written by World Health Organization and published by World Health Organization. This book was released on 1993 with total page 260 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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.

Download or read book Handbook of Drinking Water Quality written by John DeZuane and published by John Wiley & Sons. This book was released on 1997-01-31 with total page 600 pages. Available in PDF, EPUB and Kindle. Book excerpt: "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.

Download or read book Assessing Microbial Safety of Drinking Water Improving Approaches and Methods written by OECD and published by OECD Publishing. This book was released on 2003-03-20 with total page 292 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book provides a state-of-the-art review on approaches and methods used in assessing the microbial safety of drinking-water.

Download or read book Modern Tools and Methods of Water Treatment for Improving Living Standards written by Alexander Omelchenko and published by Springer Science & Business Media. This book was released on 2005-08-19 with total page 340 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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.

Download or read book Microbial Growth in Drinking Water Supplies written by Dick van der Kooij and published by IWA Publishing. This book was released on 2013-09-14 with total page 484 pages. Available in PDF, EPUB and Kindle. Book excerpt: Maintaining the microbial quality in distribution systems and connected installations remains a challenge for the water supply companies all over the world, despite many years of research. This book identifies the main concerns and knowledge gaps related to regrowth and stimulates cooperation in future research. Microbial Growth in Drinking Water Supplies provides an overview of the regrowth issue in different countries and the water quality problems related to regrowth. The book assesses the causes of regrowth in drinking water and the prevention of regrowth by water treatment and distribution. Editors: Dirk van der Kooij and Paul W.J.J. van der Wielen, KWR Watercycle Research Institute, The Netherlands

Download or read book Identifying Future Drinking Water Contaminants written by National Research Council and published by National Academies Press. This book was released on 1999-09-30 with total page 277 pages. Available in PDF, EPUB and Kindle. Book excerpt: With an increasing population, use of new and diverse chemicals that can enter the water supply, and emergence of new microbial pathogens, the U.S. federal government is faced with a regulatory dilemma: Where should it focus its attention and limited resources to ensure safe drinking water supplies for the future? Identifying Future Drinking Water Contaminants is based on a 1998 workshop on emerging drinking water contaminants. It includes a dozen papers that were presented on new and emerging microbiological and chemical drinking water contaminants, associated analytical and water treatment methods for their detection and removal, and existing and proposed environmental databases to assist in their proactive identification and regulation. The papers are preceded by a conceptual approach and related recommendations to EPA for the periodic creation of future Drinking Water Contaminant Candidate Lists (CCLsâ€"produced every five yearsâ€"include currently unregulated chemical and microbiological substances that are known or anticipated to occur in public water systems and that may pose health risks).

Download or read book Microbiological Aspects of Biofilms and Drinking Water written by Steven Lane Percival and published by CRC Press. This book was released on 2000-05-23 with total page 241 pages. Available in PDF, EPUB and Kindle. Book excerpt: The development of biofilms and their role in public health - particularly drinking water - is often overlooked. Ideal for anyone interested in water related issues, Microbiological Aspects of Biofilms and Drinking Water presents an overview of the public health effects associated with drinking water. It highlights the microbiological aspects relat

Download or read book Basic Microbiology for Drinking Water Personnel written by Dennis Hill and published by . This book was released on 2006 with total page 126 pages. Available in PDF, EPUB and Kindle. Book excerpt: Intended to help managers, operators, and other water purification personnel to become acquainted with basic microbiological concepts, in order to better understand their jobs. Covers the nature of diseases, culture media options, and includes color photographs.

Download or read book Drinking Water Quality and Contaminants Guidebook written by Joseph Cotruvo and published by CRC Press. This book was released on 2018-09-18 with total page 191 pages. Available in PDF, EPUB and Kindle. Book excerpt: K347191 BCC Drinking water quality is a sensitive issue, and the public is constantly barraged by contaminant reports now routinely at parts-per-trillion. Protection from microbial disease risks from drinking water must always be predominant; trace chemicals usually fall farther down the scale of possible health risks, but even negligible detections raise public concerns. Drinking Water Quality and Contaminants Guidebook presents information and guidance on drinking water quality and regulatory issues reflecting experiences and judgments from the author’s more than 43 years of extensive experience. It contains digested comprehensive information on important chemical, microbial, and radionuclide water contaminants, and discussions of several drinking water-related policy issues. Information is presented for long-standing regulated contaminants and chemicals of emerging concern in understandable terms for professionals and non-experts alike. Dossiers contain readily accessed information on sources, physical and chemical properties, toxicity, analytical methodology, water treatment technology, regulations and health advisories, and also include World Health Organization Guidelines. Aesthetic and acceptance factors such as water hardness and salinity that influence public perceptions of drinking water quality are also addressed. Features: Compiles and interprets essential information on numerous key chemical, microbial, and radionuclide water contaminants Provides standardized entries for each contaminant, including occurrence, health, analytical, water treatment, regulations, and World Health Organization guidance and recommendations with source citations Examines many water-related topics including fracking, potable water reuse, desalination, boil water notices, bottled water, foodborne and waterborne disease, and public perceptions about public drinking water quality Provides essential information and the basis for management of many long-standing contaminants such as lead, mercury, disinfection by-products, E. coli, and also emerging issues such as legionella, glyphosate, BPA, and more

Download or read book Topics in Public Health written by David Claborn and published by BoD – Books on Demand. This book was released on 2015-06-17 with total page 310 pages. Available in PDF, EPUB and Kindle. Book excerpt: Public health has been defined as the efforts of a community that allow a population to remain healthy. This definition is very inclusive, so elements of clinical care, health promotion and many other fields contribute to the larger discipline of public health. The profession has evolved in recent years, with the emphasis in the developed world changing from the hygiene method for control of infectious diseases to a more complex approach to address chronic disease. However, the focus in public health continues to be the population. This book provides a sample of fields that contribute to the public health profession. Its broad approach provides examples of the core fields of public health, including environmental health, epidemiology, biostatistics, health administration, and health behavior.

Download or read book Microbiology of Drinking Water written by Gabriel Bitton and published by John Wiley & Sons. This book was released on 2014-10-02 with total page 314 pages. Available in PDF, EPUB and Kindle. Book excerpt: Microbiology of Drinking Water Production and Distribution addresses the public health aspects of drinking water treatment and distribution. It explains the different water treatment processes, such as pretreatment, coagulation, flocculation, sedimentation, filtration, disinfection, and their impacts on waterborne microbial pathogens and parasites. Drinking water quality may be degraded in water distribution systems—microorganisms form biofilms within distribution systems that allow them to flourish. Various methodologies have been proposed to assess the bacterial growth potential in water distribution systems. Microbiology of Drinking Water Production and Distribution also places drinking water quality and public health issues in context; it addresses the effect of bioterrorism on drinking water safety, particularly safeguards that are in place to protect consumers against the microbial agents involved. In addition, the text delves into research on drinking water quality in developing countries and the low-cost treatment technologies that could save lives. The text also examines the microbiological water quality of bottled water, often misunderstood by the public at large.