Assessing Microbial Safety of Drinking Water Improving Approaches and Methods

Assessing Microbial Safety of Drinking Water Improving Approaches and Methods PDF Author: OECD
Publisher: OECD Publishing
ISBN: 9264099476
Category :
Languages : en
Pages : 292

Get Book Here

Book Description
This book provides a state-of-the-art review on approaches and methods used in assessing the microbial safety of drinking-water.

Assessing Microbial Safety of Drinking Water Improving Approaches and Methods

Assessing Microbial Safety of Drinking Water Improving Approaches and Methods PDF Author: OECD
Publisher: OECD Publishing
ISBN: 9264099476
Category :
Languages : en
Pages : 292

Get Book Here

Book Description
This book provides a state-of-the-art review on approaches and methods used in assessing the microbial safety of drinking-water.

Heterotrophic Plate Counts and Drinking-water Safety

Heterotrophic Plate Counts and Drinking-water Safety PDF Author: Jamie Bartram
Publisher: IWA Publishing
ISBN: 9781843390251
Category : Science
Languages : en
Pages : 278

Get Book Here

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.

Quantitative Microbial Risk Assessment

Quantitative Microbial Risk Assessment PDF Author: Charles N. Haas
Publisher: John Wiley & Sons
ISBN: 1118145291
Category : Technology & Engineering
Languages : en
Pages : 439

Get Book Here

Book Description
Provides the latest QMRA methodologies to determine infection risk cause by either accidental microbial infections or deliberate infections caused by terrorism • Reviews the latest methodologies to quantify at every step of the microbial exposure pathways, from the first release of a pathogen to the actual human infection • Provides techniques on how to gather information, on how each microorganism moves through the environment, how to determine their survival rates on various media, and how people are exposed to the microorganism • Explains how QMRA can be used as a tool to measure the impact of interventions and identify the best policies and practices to protect public health and safety • Includes new information on genetic methods • Techniques use to develop risk models for drinking water, groundwater, recreational water, food and pathogens in the indoor environment

Guidelines for Drinking-water Quality

Guidelines for Drinking-water Quality PDF Author: World Health Organization
Publisher: World Health Organization
ISBN: 9789241545037
Category : Medical
Languages : en
Pages : 260

Get Book Here

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.

Topics in Public Health

Topics in Public Health PDF Author: David Claborn
Publisher: BoD – Books on Demand
ISBN: 9535121324
Category : Medical
Languages : en
Pages : 310

Get Book Here

Book Description
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.

Drinking Water and Infectious Disease

Drinking Water and Infectious Disease PDF Author: Paul Raymond Hunter
Publisher: CRC Press
ISBN: 1420040529
Category : Medical
Languages : en
Pages : 254

Get Book Here

Book Description
In many countries, considerable uncertainty still exists about the contribution of drinking water to sporadic cases of disease. The Organization for Economic Cooperation and Development (OECD), in cooperation with the World Health Organization (WHO), led the Workshop on Molecular Technologies for Safe Drinking Water in 1998 to address the role of w

Microbiology of Drinking Water

Microbiology of Drinking Water PDF Author: Gabriel Bitton
Publisher: John Wiley & Sons
ISBN: 1118743911
Category : Science
Languages : en
Pages : 314

Get Book Here

Book Description
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.

Assessing Microbial Safety of Drinking Water

Assessing Microbial Safety of Drinking Water PDF Author:
Publisher:
ISBN:
Category : Drinking water
Languages : en
Pages : 292

Get Book Here

Book Description


Microbial Growth in Drinking Water Supplies

Microbial Growth in Drinking Water Supplies PDF Author: Dick van der Kooij
Publisher: IWA Publishing
ISBN: 1780400403
Category : Science
Languages : en
Pages : 484

Get Book Here

Book Description
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

Pathogenic Mycobacteria in Water

Pathogenic Mycobacteria in Water PDF Author: Steve Pedley
Publisher:
ISBN:
Category : Mycobacterial diseases
Languages : en
Pages : 237

Get Book Here

Book Description