Download or read book Acute Exposure Guideline Levels for Selected Airborne Chemicals written by and published by . This book was released on 2000 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Methyl Bromide Risk Characterization in California written by National Research Council and published by National Academies Press. This book was released on 2000-06-13 with total page 111 pages. Available in PDF, EPUB and Kindle. Book excerpt: Methyl bromide is gaseous pesticide used to fumigate soil, crops, commodity warehouses, and commodity-shipping facilities. Up to 17 million pounds of methyl bromide are used annually in California to treat grapes, almonds, strawberries, and other crops. Methyl bromide is also a known stratospheric ozone depleter and, as such, is scheduled to be phased out of use in the United States by 2005 under the United Nations Montreal Protocol. In California, the use of methyl bromide is regulated by the Department of Pesticide Regulation (DPR), which is responsible for establishing the permit conditions that govern the application of methyl bromide for pest control. The actual permits for use are issued on a site-specific basis by the local county agricultural commissioners. Because of concern for potential adverse health effects, in 1999 DPR developed a draft risk characterization document for inhalation exposure to methyl bromide. The DPR document is intended to support new regulations regarding the agricultural use of this pesticide. The proposed regulations encompass changes to protect children in nearby schools, establish minimum buffer zones around application sites, require notification of nearby residents, and set new limits on hours that fumigation employees may work. The State of California requires that DPR arrange for an external peer review of the scientific basis for all regulations. To this end, the National Research Council (NRC) was asked to review independently the draft risk characterization document prepared by DPR for inhalation exposure to methyl bromide. The task given to NRC's subcommittee on methyl bromide states the following: The subcommittee will perform an independent scientific review of the California Environmental Protection Agency's risk assessment document on methyl bromide. The subcommittee will (1) determine whether all relevant data were considered, (2) determine the appropriateness of the critical studies, (3) consider the mode of action of methyl bromide and its implications in risk assessment, and (4) determine the appropriateness of the exposure assessment and mathematical models used. The subcommittee will also identify data gaps and make recommendations for further research relevant to setting exposure limits for methyl bromide. This report evaluates the toxicological and exposure data on methyl bromide that characterize risks at current exposure levels for field workers and nearby residents. The remainder of this report contains the subcommittee's analysis of DPR's risk characterization for methyl bromide. In Chapter 2, the critical toxicological studies and endpoints identified in the DPR document are evaluated. Chapter 3 summarizes DPR's exposure assessment, and the data quality and modeling techniques employed in its assessment are critiqued. Chapter 4 provides a review of DPR's risk assessment, including the adequacy of the toxicological database DPR used for hazard identification, an analysis of the margin-of-exposure data, and appropriateness of uncertainty factors used by DPR. Chapter 5 contains the subcommittee's conclusions about DPR's risk characterization, highlights data gaps, and makes recommendations for future research.
Download or read book Review of the Phaseout of Methyl Bromide written by United States. Congress. House. Committee on Agriculture. Subcommittee on Forestry, Resource Conservation, and Research and published by . This book was released on 1998 with total page 152 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Methyl bromide written by United States. Congress. House. Committee on Government Reform. Subcommittee on Energy and Resources and published by . This book was released on 2006 with total page 106 pages. Available in PDF, EPUB and Kindle. Book excerpt: Distributed to some depository libraries in microfiche.
Download or read book The Methyl Bromide Issue written by C. H. Bell and published by John Wiley & Sons. This book was released on 1996 with total page 424 pages. Available in PDF, EPUB and Kindle. Book excerpt: Written by international experts in the field, this book sets outthe scientific arguments for and against the use of methyl bromidewhich is both naturally occurring and also a man-made productbelieved to have played a significant role in the depletion of theozone layer. Methyl bromide is a widely used fumigant in agriculture,horticulture and the preservation of structural materials. The fateof this natural and man-made chemical is the focus of much fiercedebate with scientific, political, social, environmental andeconomic arguments for and against the production and use of thischemial. This book does not set out to convince the reader of apredetermined viewpoint. Its purpose is to set out the scientificdebate covering the major relevant fields including agriculture,atmospheric chemistry, oceanography, environmental sciences,chemistry, biology and toxicology, as well as two chapters onpotential alternatives to methyl bromide. The authors who havecontributed to this book are all experts who have played pivotalroles in the international debate on methyl bromide.
Download or read book Fumigation Using Methyl Bromide bromomethane written by Great Britain. Health and Safety Executive and published by . This book was released on 1986 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Biologic and Economic Assessment of Methyl Bromide written by and published by . This book was released on 1993 with total page 118 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Alternatives to Methyl Bromide written by and published by UNEP/Earthprint. This book was released on 2001 with total page 340 pages. Available in PDF, EPUB and Kindle. Book excerpt: Methyl bromide, a potent pest control chemical, was identified as an ozone depleting substance (ODS) in 1972. The phase out of this toxic chemical presents a special challenge. To replace methyl bromide, users around the world must have access to reliable and useful technical information. This publication was produced by the United Nations Environment Programme to promote the methyl bromide phase out. It allows the reader to carefully and thoroughly assess many available alternatives and decide on the best option for their situation. The publication also provides addresses of suppliers and specialists in alternatives; references and websites; and contacts for implementing agencies.
Download or read book Methyl Bromide Substitutes and Alternatives written by and published by . This book was released on 1993 with total page 40 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Methyl Bromide written by Kathie Beane and published by . This book was released on 1993 with total page 36 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book 2002 Report of the Methyl Bromide Technical Options Committee written by United Nations Environment Programme. Methyl Bromide Technical Options Committee and published by UNEP/Earthprint. This book was released on 2003 with total page 462 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Methyl Bromide Technical Options Committee (MBTOC) was established by parties to the Montreal Protocol on Substances that Deplete the Ozone Layer to identify existing and potential alternatives to methyl bromide (MB). This 2002 Assessment reports on MB usage, the quantities produced and consumed, and existing and potential alternate treatments for its use as a fumigant.
Download or read book The status of methyl bromide under the Clean Air Act and the Montreal Protocol written by United States. Congress. House. Committee on Energy and Commerce. Subcommittee on Energy and Air Quality and published by . This book was released on 2004 with total page 128 pages. Available in PDF, EPUB and Kindle. Book excerpt: This volume includes the transcript of the U.S. Congress subcommittee hearing held in June 2003 that discussed the status of the compound methyl bromide as it pertains to the Montreal Protocol and the Clean Air Act. The Montreal Protocol on Substances that Deplete the Ozone Layer is an international treaty designed to protect the ozone layer by phasing out the production of numerous substances believed to be responsible for ozone depletion. The Clean Air Act is a U.S. federal law designed to control air pollution on a national level. Methyl bromide (MeBr) is an odorless, colorless gas that has been used as a soil fumigant and structural fumigant to control pests across a wide range of sectors. Because MeBr depletes the stratospheric ozone layer, the amount of MeBr produced and imported in the U.S. was reduced incrementally until it was phased out completely by January 1, 2005, pursuant to the U.S.'s obligation under the Montreal Protocol and the Clean Air Act.
Download or read book Global Report on Validated Alternatives to the Use of Methyl Bromide for Soil Fumigation written by R. Labrada and published by Food & Agriculture Org.. This book was released on 2001 with total page 112 pages. Available in PDF, EPUB and Kindle. Book excerpt: Methyl bromide (MeBr), used as a fumigant to control several soil-borne pests in various crops, is a strong ozone depleter, and governments and international agencies aware of the problem have agreed to establish a programme to phase out its use. As a result, some literature on new MeBr alternatives is available that describes the feasibility and disadvantages of each new pest control measure. Some of these publications result from workshops and symposia organized in different countries by the United Nations Environment Programme and by the United Nations Industrial Development Organization. The present report provides information on successful alternatives in some countries or regions where MeBr is being phased out. Although the report often shows the lack of already validated alternatives, particularly for a region such as Africa, the material provides enough elements on the technical and economic success of a variety of alternatives to assist agricultural researchers and extensionists in carrying out further studies and/or for validation. The material can also serve as a reference, particularly for the training of trainers.
Download or read book Methyl Bromide in the Nordic Countries written by Thorkil E. Hallas and published by Nordic Council of Ministers. This book was released on 1993 with total page 62 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Monohalomethanes written by and published by . This book was released on 1984 with total page 36 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Protecting the Ozone Layer Methyl bromide written by Industry and Environment Programme Activity Centre and published by UNEP/Earthprint. This book was released on 1998 with total page 40 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Report on Experiments with Methyl Bromide as a Fumigant for Stored Tobacco written by William Henry White and published by . This book was released on 1948 with total page 10 pages. Available in PDF, EPUB and Kindle. Book excerpt:
