Author: Syracuse Research CorporationPublisher:
ISBN:
Category : Bromoform
Languages : en
Pages : 280
Book Description
Toxicological Profile for Bromoform and Dibromochloromethane
Author: Syracuse Research CorporationPublisher:
ISBN:
Category : Bromoform
Languages : en
Pages : 280
Book Description
Toxicological Profile for Bromoform and Chlorodibromomethane
Author: Toxicological Profile for N-nitrosodimethylamine
Author: Toxicological Profile for Chlorine Dioxide and Chlorite
Author: Toxic Legacy
Author: Patrick SullivanPublisher: Elsevier
ISBN: 0080466478
Category : Technology & Engineering
Languages : en
Pages : 569
Book Description
Any professional examination of existing or potential new toxins in a population must account for those already present from past problems and natural conditions.Toxic Legacy provides extensive information on the occurrence of chemical hazards and their potential dangers in combinations in the food, water and air in cities around the United States. The book illustrates consumer preferences for specific food and water products, as well as particular diets and discusses the toxicity and risks associated with our exposure to synthetic chemicals. The authors offer unique guidance to environmental engineers, scientists, process engineers, and planners and specify what steps can be taken to limit exposure to complex chemical mixtures. - Includes strategies for minimizing our exposure to chemical mixtures - Provides detailed analysis of hazards associated with exposure to chemical mixtures from multiple sources - Presents chemical data on the food, water and air for 36 metropolitan areas in the United States
Taking an Exposure History
Author: Arthur L. FrankPublisher:
ISBN:
Category : Environmental monitoring
Languages : en
Pages : 60
Book Description
Toxicological Profile for Bromoform/Dibromochloromethane
Author: US DEPARTMENT OF HEALTH & HUMAN SERVICESPublisher:
ISBN:
Category :
Languages : en
Pages : 266
Book Description
Toxicological Profile for Bromodichloromethane
Author: Chemical Safety of Drinking-water
Author: Terrence ThompsonPublisher: WHO
ISBN: 9789241546768
Category : Medical
Languages : en
Pages : 142
Book Description
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).
Alternatives for Managing the Nation's Complex Contaminated Groundwater Sites
Author: National Research CouncilPublisher: National Academies Press
ISBN: 0309278139
Category : Nature
Languages : en
Pages : 423
Book Description
Across the United States, thousands of hazardous waste sites are contaminated with chemicals that prevent the underlying groundwater from meeting drinking water standards. These include Superfund sites and other facilities that handle and dispose of hazardous waste, active and inactive dry cleaners, and leaking underground storage tanks; many are at federal facilities such as military installations. While many sites have been closed over the past 30 years through cleanup programs run by the U.S. Department of Defense, the U.S. EPA, and other state and federal agencies, the remaining caseload is much more difficult to address because the nature of the contamination and subsurface conditions make it difficult to achieve drinking water standards in the affected groundwater. Alternatives for Managing the Nation's Complex Contaminated Groundwater Sites estimates that at least 126,000 sites across the U.S. still have contaminated groundwater, and their closure is expected to cost at least $110 billion to $127 billion. About 10 percent of these sites are considered "complex," meaning restoration is unlikely to be achieved in the next 50 to 100 years due to technological limitations. At sites where contaminant concentrations have plateaued at levels above cleanup goals despite active efforts, the report recommends evaluating whether the sites should transition to long-term management, where risks would be monitored and harmful exposures prevented, but at reduced costs.