Download or read book Ambient Air Determination of Particle Phase Polycyclic Aromatic Hydrocarbons by High Performance Liquid Chromatography written by British Standards Institute Staff and published by . This book was released on 2005-03-10 with total page 36 pages. Available in PDF, EPUB and Kindle. Book excerpt: Air, Aromatic hydrocarbons, Chemical analysis and testing, Determination of content, Liquid chromatography, Sampling methods, Air pollution, Chromatography, Cyclic compounds
Download or read book The Analysis of Particulate and Vapor Phase Polycyclic Aromatic Hydrocarbons in Atmospheric Samples Using Liquid Chromatography with Fluorescence Detection and Gas Chromatography with Mass Spectrometric Detection written by Kathleen P. Duggan and published by . This book was released on 2001 with total page 310 pages. Available in PDF, EPUB and Kindle. Book excerpt: Polycyclic aromatic hydrocarbons (PAHs) are products of the incomplete combustion of carbonaceous material emanating from many sources including forest fires, furnaces, and gasoline or diesel motor exhausts. Large PAHs have low vapor pressures and readily adsorb on to particulate matter. Particulates may remain in the atmosphere for prolonged periods of time and pose a threat to ecosystems if present at elevated levels. Smaller PAHs, such as naphthalene and fluorene, have relatively high vapor pressures and are more likely to be present in the vapor phase. Thus, it is important to determine PAH levels present in both the vapor phase and the particulate phase. Particulate-bound and vapor phase PAHs were collected at a low-, medium- and high-traffic area in Halifax, N.S. Pressure-assisted solvent extraction and sonication were chosen for extraction of PAHs from filters and polyurethane foams, respectively. HPLC/Fluorescence was the technique chosen for the identification and quantification of PAHs and GC/MS was used to monitor selectively air samples for alkylated PAHs in order to obtain possible fingerprints of the sources of these pollutants.
Download or read book Polycyclic Aromatic Hydrocarbons in Work Atmospheres written by Alf Bjorseth and published by CRC Press. This book was released on 2018-05-04 with total page 190 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book deals with the sources, distribution, analytical methods, and monitoring of Polycyclic aromatic hydrocarbons (PAH) in the occupational environment. It is hoped that this book will make a contribution to understanding the formation and determination of PAH in work atmosphere and that it will make a particular contribution to occupational health projects. Much of the information given in this book has been generating in studies carried out in cooperation with the Norwegian aluminium industry.
Download or read book WHO Guidelines for Indoor Air Quality written by and published by World Health Organization. This book was released on 2010 with total page 488 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book presents WHO guidelines for the protection of public health from risks due to a number of chemicals commonly present in indoor air. The substances considered in this review, i.e. benzene, carbon monoxide, formaldehyde, naphthalene, nitrogen dioxide, polycyclic aromatic hydrocarbons (especially benzo[a]pyrene), radon, trichloroethylene and tetrachloroethylene, have indoor sources, are known in respect of their hazardousness to health and are often found indoors in concentrations of health concern. The guidelines are targeted at public health professionals involved in preventing health risks of environmental exposures, as well as specialists and authorities involved in the design and use of buildings, indoor materials and products. They provide a scientific basis for legally enforceable standards.
Download or read book Hydrocarbon Pollution and its Effect on the Environment written by Muharrem Ince and published by BoD – Books on Demand. This book was released on 2019-12-04 with total page 100 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book covers hydrocarbon pollution, measurement techniques for hydrocarbons, risk assessment, and environmental impact. This comprehensive book takes a broad view of the subject and integrates a wide variety of approaches. This book attempts to address the needs of graduate and postgraduate students and other professionals or readers interested in food, soil, water, and air pollution. The aim of this book is to explain and clarify important studies, and compare and develop the new and groundbreaking measurement techniques. Written by leading experts in their respective areas, the book is highly recommended to professionals interested in environmental and human health because it provides specific and comprehensive examples.
Download or read book Toxicological Profile for Polycyclic Aromatic Hydrocarbons written by and published by . This book was released on 1995 with total page 500 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Handbook of Polycyclic Aromatic Hydrocarbons written by Bjorseth and published by CRC Press. This book was released on 1985-12-06 with total page 434 pages. Available in PDF, EPUB and Kindle. Book excerpt: This volume concerns sources of polycyclic aromatic hydrocarbons (PAH), their emission factors, and relative importance. It deals with exposure, uptake, metabolism, and detection of PAH in the human body. The volume contains an update of information in environmental and biochemical studies of PAH.
Download or read book Analysis of Nitrated Polycyclic Hydrocarbons PAH quinones and Related Compounds in Ambient Air written by Yalan Wang and published by . This book was released on 1987 with total page 156 pages. Available in PDF, EPUB and Kindle. Book excerpt: Studies were conducted to characterized airborne particulate extractable organic matter (EOM) with respect to chemical composition and biological activity. It has been well established that the nitrated polycyclic hydrocarbons (nitroPAH) are environmental contaminants. To identify nitro-PAH in ambient air sample, a technique was developed involving introduction of a reducer column into an reversephase high performance liquid chromatography (HPLC) system. Strong fluorescence signals were achieved from nitro-PAH and detected together with u.v. signals for the qualitative and quantitative analysis of nitro-PAH. 2-Nitrotriptycene was synthesized according to published procedures and used as an internal standard. By use of the above technique, 9nitroanthracene, 1-nitropyrene, 7 -nitrobenz (a) anthracene, 6-nitrochrysene and 6-nitrobenzo(a)pyrene were detected in NBS diesel particulate sample. PAH-quinones may be formed from the appropriate PAH's by their photochemical oxidation in the atmosphere. In this study, an analytical method for the identification of PAH-quinones in airborne particulates was developed. The same HPLC system was employed as that for nitro-PAH. 3,6BaP-dione and 7,8-BaP-dione were identified in both CYC extract and DCM extract of an ambient air sample by using the analytical method developed. Since hydroxynitropyrenes have been identified as making a significant contribution to the mutagenicity of airborne particulate matter, this prompted us to investigate one such compound, 1nitropyren-2-ol. This compound was synthesized according to published procedures. 1-Nitropyren2-ol was detected in one of the ambient air samples and in an NBS diesel particulate sample by using our reverse-phase HPLC system monitoring at 546 nm. To provide more data for estimating the photochemical products of 1nitropyrene, the filters coated with 1nitropyrene were exposed either to sunlight or to u.v. light. The breakdown products were analyzed using HPLC. No 1-nitropyren-2-ol was found in the filters exposed in both ways. Further work is needed to identify the breakdown products.
Download or read book Methods for Polynuclear Aromatic Hydrocarbon Determination in Air Samples Using Polar bonded Phase HPLC and GC MS with Application to Oil Refinery Samples written by Dori Lynn Karlesky and published by . This book was released on 1985 with total page 510 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Sampling Analysis and Data Validation of Indoor Concentrations of Polycyclic Aromatic Hydrocarbons PAH written by Francis J. Offermann and published by . This book was released on 1990 with total page 254 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Polycyclic Aromatic Hydrocarbons written by and published by National Academies Press. This book was released on 1983-01-01 with total page 482 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Analysis of Particulate and Vapor Phase Polycyclic Aromatic Hydrocarbons in Atmospheric Samples Using Liquid Chromatography with Fluorescence Detection and Gas Chromotography with Mass Spectrometric Detection microform written by Kathleen P. Duggan and published by National Library of Canada = Bibliothèque nationale du Canada. This book was released on 2001 with total page 310 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book PAHs written by Peter E. T. Douben and published by John Wiley & Sons. This book was released on 2003-07-25 with total page 404 pages. Available in PDF, EPUB and Kindle. Book excerpt: Polycyclic aromatic hydrocarbons (PAHs), or polyarenes, are one of the largest and most structurally diverse class of organic molecules known. High percentages of polyarenes, representing a wide range of molecular sizes and structural types, are present in coal tars and petroleum residues. The major sources of PAHs are crude oil, coal and oil shale. The fuels produced from these fossil sources constitute the primary source of energy for the industrial nations of the world, and the petrochemicals from these raw materials are the basis of the synthetic fibre and plastics industries. PAHs are however, widespread pollutants and their impact on the environment and human health must be monitored and controlled. This book will review and assess our scientific understanding of the ecological exposure and effects PAHs have in different environments and habitats. It will accomplish this by taking the recipients of the pollution in the environment as starting points and working its way back through pathways to access what is required for our understanding of effects and rationale for control. Although this book will concentrate on ecological exposure of PAHs, the general impacts of PAHs on human populations will be touched upon. It is thought to be the first book to focus on the ecological aspects of PAHs.
Download or read book Polycyclic Aromatic Hydrocarbons written by Kazuichi Hayakawa and published by Springer. This book was released on 2018-02-05 with total page 267 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book reviews Polycyclic Aromatic Hydrocarbons (PAHs) and Nitropolycyclic Aromatic Hydrocarbons (NPAHs) contamination in the context of environmental pollution in Asia. It is comprised of the following sections: 1. Fundamental Chemistry and General Characteristics; 2. Analytical Methods; 3. Emission Source and Atmospheric Behavior; 4. Atmospheric Polycyclic Aromatic Hydrocarbons and PM2.5; 5. Polycyclic Aromatic Hydrocarbons in Marine Environments; 6. Metabolic Activation/Toxicities; and 7. Environmental Standards and Guidelines. This volume concentrates on the Far East due to the massive consumption of coal and petroleum in China, which has led to considerable levels of air pollution. High concentration of atmospheric PM2.5 in Beijing have been reported since January 2013 and exposure to such high concentrations may cause respiratory, cardiac and lung diseases. Gathering contributions from international experts, this volume provides a valuable reference guide for global researchers and students interested in learning from the East Asian experience.
Download or read book Polycyclic Aromatic Hydrocarbon Analysis by HPLC of Ambient Air Particulates in a Wood burning Community written by Deborah J. Larsen and published by . This book was released on 1981 with total page 180 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Handbook of Polycyclic Aromatic Hydrocarbons written by Alf Bjørseth and published by New York : M. Dekker, c1983-c1985.. This book was released on 1983 with total page 746 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Advances in Molecular Toxicology written by and published by Academic Press. This book was released on 2016-11-11 with total page 414 pages. Available in PDF, EPUB and Kindle. Book excerpt: Advances in Molecular Toxicology features the latest advances in the subspecialties of the broad area of molecular toxicology. This series details the study of the molecular basis of toxicology by which a vast array of agents encountered in the human environment, and produced by the human body, manifest themselves as toxins. The book is not strictly limited to documenting these examples, but also covers the complex web of chemical and biological events that give rise to toxin-induced symptoms and disease. The new technologies that are being harnessed to analyze and understand these events are also reviewed by leading experts in the field. - Provides cutting-edge reviews by leading workers in the discipline - Includes in-depth dissection of the molecular aspects that are of interest to a broad range of scientists, physicians, and any student in the allied disciplines - Presents leading-edge applications of technological innovations in chemistry, biochemistry, and molecular medicine
