Download or read book Development of a Study Plan for Definition of PCBs Usage Vastes and Potential Substitution in the Investments Casting Industry written by James D.. Barden and published by . This book was released on 1976 with total page 36 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Development of a Study Plan for Definition of PCBs Usage Wastes and Potential Substitution in the Investment Casting Industry written by United States. Environmental Protection Agency. Office of Toxic Substances and published by . This book was released on 1976 with total page 48 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Development of a Study Plan for Definition of PCBs Usage Wastes and Potential Substitution in the Investment Casting Industry written by James D. Barden and published by . This book was released on 1976 with total page 35 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Development of a Study Plan for Definition of Pcbs Usage Wastes and Potential Substitution in the Investment Casting Industry written by James D. Barden and published by . This book was released on 1976 with total page 35 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Development of a Study for Definition of Pcbs Usage Wastes an Potential Substitution in the Investment Casting Industry Task 3 written by T. Kopp and published by . This book was released on 1976 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Development of a Study Plan for Definition of PCBs Usuage Wastes and Potential Substitution in the Investment Casting Industry written by United States. Environmental Protection Agency. Office of Toxic Substances and published by . This book was released on 1976 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book PCBs in the United States Industrial Use and Environmental Distribution written by Versar, Inc and published by . This book was released on 1976 with total page 510 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book PCBs in the United States Industrial Use and Environmental Distribution written by United States. Environmental Protection Agency. Office of Toxic Substances and published by . This book was released on 1976 with total page 498 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book A Research Study to Investigate PCBs in School Buildings written by Environmental Protection Agency, Washington, DC. Office of Research and Development and published by . This book was released on 2010 with total page 36 pages. Available in PDF, EPUB and Kindle. Book excerpt: Polychlorinated biphenyls (PCBs) are synthetic chemicals that were manufactured in the United States between about 1930 and 1977 for use in various industrial and commercial applications because of their nonflammability, chemical stability, high boiling point, and electrical insulation properties (ATSDR, 2000). PCBs were used in numerous products and processes, including electrical, heat transfer, and hydraulic equipment; as plasticizers in various products; in paints and finishes; in pigments, dyes, and carbonless copy paper; and in other industrial and commercial applications. Most of the PCB mixtures manufactured for commercial use in the United States are known by the trade name Aroclor. Each specific Aroclor contained mixtures of some of the 209 congeners, with chlorine contents of the different Aroclors ranging from 21% to 68%. Between 1957 and 1971, 12 types of Aroclors were produced (ATSDR, 2000). During this time, PCBs were used in completely closed systems (such as transformers and capacitors), nominally closed systems (such as hydraulic systems and vacuum pumps), and open systems (such as plasticizers and paints). In 1970, the manufacturer discontinued use of Aroclors in open products and uses that could lead to direct transfer into the environment (Erickson, 1997). Manufacture of PCBs was banned in the United States by Congress, and their use was phased out, except for certain limited uses, by 1978 because of evidence they are persistent in the environment and can cause harmful health effects. PCBs have been shown to cause cancer in animals, and, in chronic animal studies, PCBs have been shown to cause effects on the immune, reproductive, nervous, and endocrine systems. In some studies, exposure to PCBs has been associated with adverse health effects in humans. Because of potential neurotoxic and endocrine effects, there is concern regarding children's exposures to PCBs. Of particular concern is the potential for school children's exposures to PCBs in older schools. Schools constructed between 1950 and 1978 may contain caulk that incorporated PCBs as a plasticizer. Research on sources of PCBs and levels in school environments is needed to improve risk management decisions. To better understand the significance of PCB-contaminated caulk as a source of exposures to children, teachers, and staff in school buildings, the U.S. Environment Protection Agency's (EPA's) Office of Research and Development (ORD) plans to: (1) characterize PCB-contaminated caulk and other potential sources of PCBs in schools; (2) investigate relationships between PCB concentrations in air, on surfaces, and in dust and soil with potential sources in school buildings; (3) evaluate which routes of exposure (e.g., inhalation, contact with surfaces or dust) are likely to be most important; (4) improve exposure assessment models for school-related exposures and examine the feasibility for development of an indoor model for PCBs; and (5) provide samples, data, and other information to assist in developing risk management practices for reducing exposure to PCBs in schools. To meet these research objectives, the ORD National Exposure Research Laboratory (NERL) plans to conduct a measurement study in up to nine schools in the United States. The research described in this study design is being coordinated with research efforts in the ORD National Risk Management Research Laboratory (NRMRL) that are aimed at evaluating PCB emission rates, transport, and exposure mitigation methods. Study Summary Information for Schools is appended. (Contains 9 tables.).
Download or read book Hazards Decontamination and Replacement of PCB written by Jean-Pierre Crine and published by Springer. This book was released on 2013-04-26 with total page 232 pages. Available in PDF, EPUB and Kindle. Book excerpt: Poly Chlorinated Biphenyls (PCBs) are dielectric liquids which have been widely used in various industries for more than 50 years because of their supposed nonflammabi 1 i ty and thei r chemical inertness. Recent acc idents all over the world have shown PCBs can burn and their combustion by products (dioxines, furanes, etc.) are highly toxic. In fact, confusion has been created in the pub 1 ie mind between the dangers and hazards induced by PCBs themselves and those generated by their byproducts. Meanwhile, PCB pollution and toxicity is a major concern for regulating agencies, such as EPA in the United States and industry. Most Western countries now ban PCB production and strictly control their use. However, enormous amounts of PCB remain in use and their safe handling, destruction and replacement are heavy burdens for industrial users. PCB pollution and its side effects are the subject of various studies with recent conferences devoted to these PCB studies. Thus a large body of specialized information now exists on the environmental, medical, bio logical and safety aspects of PCB handling, use, cleaning and decontami nation. However, no single comprehensive publication is yet available which deals with all the problems associated with PCBs. The major objective of the present book is to provide such a guide for PCB users. One interest of this book is that it brings together the point of view of scientists from widely different backgrounds: biologists, physicians, environmentalists, toxicologists, chemists, electrical engineers, etc.
Download or read book PCBs in the United States Industrial Use and Environmental Distribution written by Versar, Inc and published by . This book was released on 1976 with total page 334 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book National Enforcement Investigations Center written by United States. Environmental Protection Agency. National Enforcement Investigation Center and published by . This book was released on 1993 with total page 14 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Contaminants in the Subsurface written by National Research Council and published by National Academies Press. This book was released on 2005-04-23 with total page 371 pages. Available in PDF, EPUB and Kindle. Book excerpt: At hundreds of thousands of commercial, industrial, and military sites across the country, subsurface materials including groundwater are contaminated with chemical waste. The last decade has seen growing interest in using aggressive source remediation technologies to remove contaminants from the subsurface, but there is limited understanding of (1) the effectiveness of these technologies and (2) the overall effect of mass removal on groundwater quality. This report reviews the suite of technologies available for source remediation and their ability to reach a variety of cleanup goals, from meeting regulatory standards for groundwater to reducing costs. The report proposes elements of a protocol for accomplishing source remediation that should enable project managers to decide whether and how to pursue source remediation at their sites.
Download or read book The Development of Metallurgy in Canada Since 1900 written by Erich Weidenhammer and published by . This book was released on 2017-09 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Historical Dictionary of Belgium written by Robert Stallaerts and published by Historical Dictionaries of Eur. This book was released on 2007 with total page 360 pages. Available in PDF, EPUB and Kindle. Book excerpt: In 1830, the inhabitants of the southern part of the United Kingdom of the Netherlands revolted against King William I. The National Congress then declared independence and proclaimed the installation of a parliamentary monarchy, and thus, the new country of Belgium was created. Belgium's vibrant culture and society have produced such artists as Peter Paul Rubens, Jan Van Eyck, and Antoon Van Dijk, as well as the influential scientists Gerardus Mercator and Andreus Vesalius. Brussels, the country's capital city, also houses the headquarters of the European Union and the North Atlantic Treaty Organization. This second edition of the Historical Dictionary of Belgium relates the history of this country through a detailed chronology, an introduction, appendixes, a bibliography, and cross-referenced dictionary entries on some of the more significant persons, places, and events; institutions and organizations; and political, economic, social, cultural, and religious facets.
Download or read book Development Document for Effluent Limitations Guidelines written by United States. Environmental Protection Agency. Effluent Guidelines Division and published by . This book was released on 1975 with total page 522 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:
