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Author : El Hadi A. Ahmed
Publisher :
ISBN 13 :
Total Pages : 80 pages
Book Rating : 4.:/5 (473 download)
Download or read book Indoors Measurements of Volatile Organic Compounds and Ammonia written by El Hadi A. Ahmed and published by . This book was released on 2004 with total page 80 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Ralf Koppmann
Publisher : John Wiley & Sons
ISBN 13 : 0470994150
Total Pages : 512 pages
Book Rating : 4.4/5 (79 download)
Download or read book Volatile Organic Compounds in the Atmosphere written by Ralf Koppmann and published by John Wiley & Sons. This book was released on 2008-04-15 with total page 512 pages. Available in PDF, EPUB and Kindle. Book excerpt: Every day, large quantities of volatile organic compounds (VOCs) are emitted into the atmosphere from both anthropogenic and natural sources. The formation of gaseous and particulate secondary products caused by oxidation of VOCs is one of the largest unknowns in the quantitative prediction of the earth’s climate on a regional and global scale, and on the understanding of local air quality. To be able to model and control their impact, it is essential to understand the sources of VOCs, their distribution in the atmosphere and the chemical transformations which remove these compounds from the atmosphere. In recent years techniques for the analysis of organic compounds in the atmosphere have been developed to increase the spectrum of detectable compounds and their detection limits. New methods have been introduced to increase the time resolution of those measurements and to resolve more complex mixtures of organic compounds. Volatile Organic Compounds in the Atmosphere describes the current state of knowledge of the chemistry of VOCs as well as the methods and techniques to analyse gaseous and particulate organic compounds in the atmosphere. The aim is to provide an authoritative review to address the needs of both graduate students and active researchers in the field of atmospheric chemistry research.
Author : Taina M. Ruuskanen
Publisher :
ISBN 13 : 9789525822007
Total Pages : 56 pages
Book Rating : 4.8/5 (22 download)
Download or read book Measurements of Volatile Organic Compounds written by Taina M. Ruuskanen and published by . This book was released on 2009 with total page 56 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : National Research Council
Publisher : National Academies Press
ISBN 13 : 0309136997
Total Pages : 338 pages
Book Rating : 4.3/5 (91 download)
Download or read book Contaminated Water Supplies at Camp Lejeune written by National Research Council and published by National Academies Press. This book was released on 2009-09-06 with total page 338 pages. Available in PDF, EPUB and Kindle. Book excerpt: In the early 1980s, two water-supply systems on the Marine Corps Base Camp Lejeune in North Carolina were found to be contaminated with the industrial solvents trichloroethylene (TCE) and perchloroethylene (PCE). The water systems were supplied by the Tarawa Terrace and Hadnot Point watertreatment plants, which served enlisted-family housing, barracks for unmarried service personnel, base administrative offices, schools, and recreational areas. The Hadnot Point water system also served the base hospital and an industrial area and supplied water to housing on the Holcomb Boulevard water system (full-time until 1972 and periodically thereafter). This book examines what is known about the contamination of the water supplies at Camp Lejeune and whether the contamination can be linked to any adverse health outcomes in former residents and workers at the base.
Author : Edward Charles Fortner
Publisher :
ISBN 13 :
Total Pages : pages
Book Rating : 4.:/5 (69 download)
Download or read book Airborne and Ground Based Measurements of Volatile Organic Compounds Using Proton Transfer Reaction Mass Spectrometry in Texas and Mexico City written by Edward Charles Fortner and published by . This book was released on 2010 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Measurements of ambient volatile organic compounds (VOCs) by proton transfer reaction mass spectrometry (PTR-MS) are reported from recent airborne and surface based field campaigns. The Southeast Texas Tetroon Study (SETTS) was a project within the TEXAQS 2005 field campaign, conducting airborne measurements that investigated the nocturnal Lagrangian transport of industrial plumes downwind of the Houston, Texas metropolitan area. On the evening of July 26-27, a polluted air mass with elevated mass 43, mass 45 and mass 57 VOCs along with elevated O3, CO, and NOx was tracked from the Houston metropolitan area to an area northwest of Shreveport, LA, a distance of over 200 miles. This campaign demonstrated that the PTRMS is capable of tracking a VOC plume over large distances and these measurements indicate that transport of VOCs, particularly light alkenes and their oxidation products, out of the Houston metropolitan area may need to be considered by areas downwind of the Houston area when they are determining how to attain their air quality goals. During the MILAGRO field campaign in March 2006 VOCs were measured by PTR-MS instrumentation on a rooftop in the urban mixed residential and industrial area north northeast of downtown Mexico City. Diurnal profiles of weekday and weekend/holiday aromatic VOC concentrations clearly show the influence of vehicular traffic during the morning rush hour time period and during the afternoon hours although a separate late afternoon peak is not seen. Plumes of toluene elevated as much as 216 parts per billion by volume (ppbv) and ethyl acetate elevated as much as 183 ppbv above background levels were observed during the late night and early morning hours. These plumes indicate the probability of significant industrial sources of these two compounds in the region. The high levels of toluene measured by our PTR-MS exceed levels that would be predicted by examination of the Mexico City Metropolitan Area (MCMA) emission inventory and when these VOC measurements are integrated with measurements conducted throughout the MCMA a better understanding of both the overall spatial pattern of VOCs in the MCMA as well as its variability will be attained.
Author : Peder Wolkoff
Publisher :
ISBN 13 :
Total Pages : 73 pages
Book Rating : 4.:/5 (641 download)
Download or read book Volatile Organic Compounds written by Peder Wolkoff and published by . This book was released on 1996 with total page 73 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Simona Pichini
Publisher : Frontiers Media SA
ISBN 13 : 2889459721
Total Pages : 107 pages
Book Rating : 4.8/5 (894 download)
Download or read book The Challenge Posed by New Synthetic Opioids: Pharmacology and Toxicology written by Simona Pichini and published by Frontiers Media SA. This book was released on 2019-08-19 with total page 107 pages. Available in PDF, EPUB and Kindle. Book excerpt: New Synthetic Opioids (NSOs), most of which are illegally produced and sold for recreational use, are posing a serious threat to the health of consumers. Due to the low cost of materials and equipment required for clandestine laboratories production with respect to the production cost of heroin, NSOs are climbing the illegal street and web drug market. Several of these drugs have been involved in a recent rise in acute intoxications and overdose deaths. Since NSOs offer enormous profit potential, and there is strong demand for their use, these drugs are being trafficked by organized crime and present major challenges for medical professionals facing intoxications and fatalities, law enforcement agencies fighting against their diffusion and policymakers trying to restrain the use and abuse of NSOs. This Research Topic aimed to fill the gap on current knowledge on pharmacology and toxicology, health risks for adult and newborns of NSOs covering both basic scientific as well as epidemiological and clinical aspects. 3 reviews, 3 mini-reviews, 1 original article, 2 case reports and 1 opinion are here presented.
Author : Angela K. Baker
Publisher :
ISBN 13 : 9780549410348
Total Pages : 334 pages
Book Rating : 4.4/5 (13 download)
Download or read book Ground-based and Aircraft Measurements of Volatile Organic Compounds in United States and Mexico City Urban Atmospheres written by Angela K. Baker and published by . This book was released on 2008 with total page 334 pages. Available in PDF, EPUB and Kindle. Book excerpt: This study presents measurements made from ground-based samples collected in 28 cities in the United States and in Mexico City, as well as data from aircraft measurements made of outflow from these urban areas. Urban samples are used to identify and quantify the major volatile organic compounds (VOCs) present in the cities studied, while aircraft samples are used for comparison and to examine both local and transported pollutants.
Author : Jacob T. Shaw
Publisher :
ISBN 13 :
Total Pages : pages
Book Rating : 4.:/5 (18 download)
Download or read book Multivariate Relative Rate Measurements of Reactions Between Volatile Organic Compounds (VOCs) and Atmospheric Radicals written by Jacob T. Shaw and published by . This book was released on 2018 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : R M Harrison
Publisher : Royal Society of Chemistry
ISBN 13 : 1847552315
Total Pages : 156 pages
Book Rating : 4.8/5 (475 download)
Download or read book Volatile Organic Compounds in the Atmosphere written by R M Harrison and published by Royal Society of Chemistry. This book was released on 2007-10-31 with total page 156 pages. Available in PDF, EPUB and Kindle. Book excerpt: Interest in volatile organic compounds (VOCs) as air pollutants has increased dramatically in recent years. This book covers a number of very topical issues concerning VOCs, including stratospheric ozone depletion due to CFCs, and the properties of alternative substances; the role of VOCs in the photochemical formation of lower atmosphere (tropospheric) ozone; and the problem of the direct toxicity of VOCs such as benzene and formaldehyde. This Issue reviews our current knowledge of VOCs, drawing upon the expertise of renowned experts and major national and international research programmes. It examines man-made and natural sources, as well as pathways and chemical reactions in the atmosphere. It also looks closely at the sources and concentrations of VOCs indoors, where humans are most likely to be exposed to them. Volatile Organic Compounds in the Atmosphere describes techniques used for the calculation of emissions inventories and strategies for control, and explores the many Government policy matters relating to VOCs. It provides readers with in-depth, clearly explained coverage of the many complex scientific and policy issues surrounding VOCs in the atmosphere.
Author : Gregory C. Pratt
Publisher :
ISBN 13 :
Total Pages : 8 pages
Book Rating : 4.:/5 (621 download)
Download or read book A Field Comparison of Volatile Organic Compound Measurements Using Passive Organic Vapor Monitors and Stainless Steel Canisters written by Gregory C. Pratt and published by . This book was released on 2005 with total page 8 pages. Available in PDF, EPUB and Kindle. Book excerpt: Field measurements of 10 volatile organic compounds (VOCs) at three different locations in the Minneapolis/St. Paul metropolitan area.
Author : Yuriy Posudin
Publisher : John Wiley & Sons
ISBN 13 : 1118914228
Total Pages : 464 pages
Book Rating : 4.1/5 (189 download)
Download or read book Methods of Measuring Environmental Parameters written by Yuriy Posudin and published by John Wiley & Sons. This book was released on 2014-08-07 with total page 464 pages. Available in PDF, EPUB and Kindle. Book excerpt: Provides a systematic review of modern methods and instruments for measuring environmental parameters • Profiles the most modern methods and instruments for environment control and monitoring • Gives an assessment of biotic and abiotic factors and their effect on quality of atmosphere and indoor air, soil, water • Provides a brief description of the main climatic (pressure, wind, temperature, humidity, precipitation, solar radiation), atmospheric, hydrographic, and edaphic factors • Covers a wide range environmental methods and instrumentation including those used in the fields of meteorology, air pollution, water quality, soil science and more • Supplied with practical exercises, problems, and tests that will help the reader to learn more deeply contents of the book
Author :
Publisher :
ISBN 13 :
Total Pages : 8 pages
Book Rating : 4.:/5 (925 download)
Download or read book Maximizing Information from Residential Measurements of Volatile Organic Compounds written by and published by . This book was released on 2013 with total page 8 pages. Available in PDF, EPUB and Kindle. Book excerpt: Continually changing materials used in home construction and finishing can introduce new chemicals or changes in the VOC profile in residential air and the trend towards tighter homes can lead to higher exposure concentrations for many indoor sources. However, the complex mixture of VOCs in residential air makes it difficult to discover emerging contaminants and/or trends in pollutant profiles. The purpose of this study is to prepare a comprehensive library of chemicals found in homes, along with a semi-quantitative approach to maximize the information gained from VOC measurements. We carefully reviewed data from 108 new California homes and identified 238 individual compounds. The majority of the identified VOCs originated indoors. Only 31% were found to have relevant health based exposure guidelines and less than 10% had a chronic reference exposure level (CREL). The finding highlights the importance of extending IAQ studies to include a wider range of VOCs.
Author : Douglas A. Lane
Publisher : CRC Press
ISBN 13 : 1000159604
Total Pages : 420 pages
Book Rating : 4.0/5 (1 download)
Download or read book Gas and Particle Phase Measurements of Atmospheric Organic Compounds written by Douglas A. Lane and published by CRC Press. This book was released on 2020-11-17 with total page 420 pages. Available in PDF, EPUB and Kindle. Book excerpt: It is becoming increasingly important to understand how and why semivolatile atmospheric pollutants partition between gas phase and particulate matter in the atmosphere. In this text the world's leading researchers in the field explain the significance of gas/particle ratios; physical and chemical parameters determining how semivolatiles partition in the atmosphere; how gas/particle ratio measurements are made; what artefacts occur during sampling; and novel new techniques and instruments for obtaining artefact-free results. Intended to be a reference book and a guide for those who study the gas/particle ratios of semivolatile atmospheric compounds. This book will be of interest to beginners in the field as well as those who have been involved in the field for many years and would like, in a single reference text, a comprehensive compendium of what is known about the theory and practice of gas/particle phase measurements.
Author : Tunga Salthammer
Publisher : John Wiley & Sons
ISBN 13 : 3527628894
Total Pages : 464 pages
Book Rating : 4.5/5 (276 download)
Download or read book Organic Indoor Air Pollutants written by Tunga Salthammer and published by John Wiley & Sons. This book was released on 2009-11-18 with total page 464 pages. Available in PDF, EPUB and Kindle. Book excerpt: With the quality of indoor air ranking highly in our lives, this second, completely, revised edition now includes 12 completely new chapters addressing both chemical and analytical aspects of organic pollutants. Sources of indoor air pollutants, measurement and detection as well as evaluation are covered filling the gap in the literature caused by this topical subject. This book is divided into four clearly defined parts: measuring organic indoor pollutants, investigation concepts and quality guidelines, field studies, and emission studies. The authors cover physico-chemical fundamentals of organic pollutants, relevant definitions and terminology, emission sources, sampling techniques and instrumentation, exposure assessment as well as methods for control. Test methods and studies for various indoor environments are described, such as automobile interiors, museum environments, or rooms with air ventilation. Emission sources covered include household and consumer products as well as electronic devices and office equipment. The book is aimed at chemists, physicists, biologists, and medical doctors at universities and research facilities, in industry and environmental laboratories as well as regulative bodies.
Author : Wade E. Melton
Publisher :
ISBN 13 :
Total Pages : 186 pages
Book Rating : 4.:/5 (42 download)
Download or read book Measurements of Ambient Volatile Organic Compounds and Particulates in Moscow, Idaho written by Wade E. Melton and published by . This book was released on 1997 with total page 186 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author :
Publisher :
ISBN 13 :
Total Pages : 72 pages
Book Rating : 4.:/5 (31 download)
Download or read book Terms of Environment written by and published by . This book was released on 1997 with total page 72 pages. Available in PDF, EPUB and Kindle. Book excerpt: Defines in non-technical language the more commonly used environmental terms appearing in EPA pub's., news releases, & other Agency documents. The definitions do not constitute the Agency's official use of terms for regulatory purposes; official terminology may be found in the laws & related regulations as published in such sources as the Congressional Record, Federal Register, & elsewhere. These terms are derived from previously published lists, internal glossaries produced by various programs & specific suggestions made by personnel in many Agency offices. The chemicals & pesticides selected for inclusion are limited to those most frequently referred to in Agency pub's. or that are the subject of major regulatory or program activities.
