Download or read book Report written by United States. Office of Water Resources Research and published by . This book was released on 1971 with total page 658 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Water Pollution Abstract written by and published by . This book was released on 1969 with total page 1062 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Water Pollution Research written by and published by . This book was released on 1937 with total page 1032 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book EPA 440 1 written by and published by . This book was released on 1974-04 with total page 350 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Annual Report Office of Water Resources Research written by United States. Office of Water Resources Research and published by . This book was released on 1971 with total page 952 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Chemical Safety of Drinking water written by Terrence Thompson and published by WHO. This book was released on 2007 with total page 142 pages. Available in PDF, EPUB and Kindle. Book excerpt: Contamination of drinking-water is a significant concern for public health throughout the world. Microbial hazards make the largest contribution to waterborne disease in developed and developing countries. Nevertheless, chemicals in water supplies can cause serious health problems--whether the chemicals are naturally occurring or derive from sources of pollution. At a global scale, fluoride and arsenic are the most significant chemicals, each affecting perhaps millions of people. However, many other chemicals can be important contaminants of drinking-water under specific local conditions. Often, identification and assessment of risks to health from drinking-water relies excessively on analysis of water samples. The limitations of this approach are well recognized, and contributed to the delay in recognizing arsenic in drinking-water as a significant health concern in Bangladesh and elsewhere. To overcome such limitations, the latest edition of the World Health Organization (WHO) Guidelines for Drinking-water Quality (WHO, 2004; WHO,2006) emphasizes effective preventive management through a 'framework for drinking-water safety' that incorporates 'water safety plans.' Effective preventive management of chemicals in drinking-water requires simple tools for distinguishing the few chemicals of potential local or national concern from the unmanageably long list of chemicals of possible significance. The aim is to identify and prioritize the chemicals of concern, to overcome the limitations of direct analysis of water quality, and ensure that limited resources are allocated towards the monitoring, assessment and control of the chemicals that pose the greatest health risks. Identifying and prioritizing chemical risks presents a challenge, especially in developing countries, because information on the presence of chemicals in water supplies is often lacking. This document provides guidance to help readers to meet that challenge. It shows how information on aspects such as geology and industrial and agricultural development, which is often readily available, can be used to identify potential chemical contaminants (and potential sources of chemicals), from catchment to consumer, and thus prioritize risks. As a supporting document to the Guidelines for Drinking-water Quality (WHO, 2004; WHO, 2006), this publication is aimed at policy-makers, regulators, managers and public health practitioners at national and local level. It is divided into three parts: Part A provides general guidance on using limited information in prioritizing chemicals in drinking-water for risk management. The need for such guidance is outlined in Chapter 1,which also describes the administrative and policy context. Chapter 2 describes the principles applied in prioritizing chemicals, provides information on some factors that affect chemical concentrations along pathways, and highlights several specific chemicals that are frequently considered priorities because of their widespread occurrence or significant health effects. Chapter 3 discusses the role of drinking-water standards and guidelines, and provides an overview of contemporary water quality management procedures. Part B provides practical guidance on identifying specific chemicals that are likely to be of concern in individual water supply systems. It groups chemical contaminants into five categories on the basis of their potential sources: naturally occurring, from agriculture activities, from human settlements, from industrial activities, and from water treatment and distribution processes themselves. Part C comprises the appendices. It includes guidance on the most likely sources of potential contaminants and on identifying chemicals that could be of concern in particular circumstances. The appendices address potential sources of chemicals considered in the WHO drinking-water guidelines (WHO, 2004; WHO, 2006), chemicals potentially discharged in effluents from industrial sources, and the association of pesticides with crops and crop types. This information is presented in an accessible format that will help users to determine the chemical hazards that can arise in the catchment, in treatment and in distribution, in large, medium and small water supplies. Many experts worldwide contributed to this work over a period of several years, beginning with the 1st Meeting of Experts on Monitoring Chemicals in Drinking Water, held in Bangkok, Thailand, in January 2001. This was followed by the 2nd Meeting of Experts on Monitoring Chemicals in Drinking Water, also held in Bangkok, in December 2001. Both meetings were sponsored by WHO and hosted by the Department of Health, Ministry of Public Health, Thailand. The draft guidance document was subsequently tested in a series of field trials in 2002-2003 in Indonesia, Fiji, Nepal, Mongolia, the Philippines and Thailand. Lessons learnt through the field trials provided feedback that was valuable in revising and finalizing the document. Readers should note that while this publication has been developed as a supporting document for, and with reference to, the Guidelines for Drinking-water Quality, the guidelines themselves are frequently updated and the latest information should always be sought by reference to relevant World Health Organization publications and web site. (http://www.who.int/water_sanitation_health/dwq/guidelines/en/index.html).

Download or read book Environmental Pollution Control Textile Processing Industry written by Lockwood Greene Engineers, Inc and published by . This book was released on 1978 with total page 518 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Water Pollution Abstracts written by Great Britain. Water Pollution Research Board and published by . This book was released on 1938 with total page 546 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Annual Report Pursuant to Water Resources Act of 1964 written by United States. Office of Water Resources Research and published by . This book was released on 1971 with total page 950 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Selected Water Resources Abstracts written by and published by . This book was released on 1971 with total page 928 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Annual Report written by United States. Office of Water Research and Technology and published by . This book was released on 1972 with total page 284 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Annual Report written by United States. Office of Water Resources Research and published by . This book was released on 1972 with total page 284 pages. Available in PDF, EPUB and Kindle. Book excerpt:

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 NPDES Compliance Inspection Manual written by United States. Environmental Protection Agency. Office of Water Enforcement and Permits and published by . This book was released on 1988 with total page 272 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Water Pollution Research Summary of Current Literature written by Great Britain. Water Pollution Research Board and published by . This book was released on 1969 with total page 1054 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Open file Report written by and published by . This book was released on 1998-10 with total page 160 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Gravity Sanitary Sewer Design and Construction written by Paul Bizier and published by Amer Society of Civil Engineers. This book was released on 2007 with total page 422 pages. Available in PDF, EPUB and Kindle. Book excerpt: ASCE MOP 60 & WEF MOP FD-5 provides theoretical and practical guidelines for the design and construction of gravity sanitary sewers.