Inhaled Particles V


Book Description

The Annals of Occupational Hygiene: Inhaled Particles V emphasizes respired particles, particularly their effects, fate, and entry, by considering quantitative exposure-effect relationships and basic mechanisms. Divided into eight sections, the book presents analysis of the dynamics of particles that enter the mouth or nose, which has been considered relative to hygiene standards grounded on 'total dust'. The concerns include the retention of mineral fibers and asbestos in the lungs. The effects on health of coal dusts and fly ash generally common in the energy industries are considered. The text also presents the tests of the carcinogenicity and pathogenicity of dusts and the toxicity of nitrous oxides. The book then focuses on the response of the airways to aerosols, sulfates, gold mine dusts, and organic dusts. Coal mining and its relationship with the progression of pneumoconiosis are also discussed. The book is a great source of information for those who are doing studies in the field of occupational health, particularly on the effects of dust and other related particles on the health of workers.




Particle Toxicology


Book Description

Exposure to particles in industry and mining and from accidental anthropogenic sources constitutes an ongoing threat. Most recently nanoparticles arising from advances in technology are exposing a wider population to pathogenic stimuli. The effects of inhaled particles are no longer confined to the lung as nanoparticles have the potential to transl




How Tobacco Smoke Causes Disease


Book Description

This report considers the biological and behavioral mechanisms that may underlie the pathogenicity of tobacco smoke. Many Surgeon General's reports have considered research findings on mechanisms in assessing the biological plausibility of associations observed in epidemiologic studies. Mechanisms of disease are important because they may provide plausibility, which is one of the guideline criteria for assessing evidence on causation. This report specifically reviews the evidence on the potential mechanisms by which smoking causes diseases and considers whether a mechanism is likely to be operative in the production of human disease by tobacco smoke. This evidence is relevant to understanding how smoking causes disease, to identifying those who may be particularly susceptible, and to assessing the potential risks of tobacco products.




Air Pollution, the Automobile, and Public Health


Book Description

"The combination of scientific and institutional integrity represented by this book is unusual. It should be a model for future endeavors to help quantify environmental risk as a basis for good decisionmaking." â€"William D. Ruckelshaus, from the foreword. This volume, prepared under the auspices of the Health Effects Institute, an independent research organization created and funded jointly by the Environmental Protection Agency and the automobile industry, brings together experts on atmospheric exposure and on the biological effects of toxic substances to examine what is knownâ€"and not knownâ€"about the human health risks of automotive emissions.




Airborne Particles


Book Description




Inhaled Particles VI


Book Description

Inhaled Particles VI contains the proceedings of an international symposium and workshop on lung dosimetry, organized by the British Occupational Hygiene Society in cooperation with the Commission of the European Communities and held at Cambridge on September 2-6, 1985. The symposium presents results of research on the entry, destiny, and effects of respired particles, with emphasis on mechanisms and dose-response relationships. This book contains, in three separate parts, 84 papers from the symposium, 34 workshop papers, and 20 poster presentations. Parts 1 and 2 are further divided into sections. Section 1 presents several papers concerning the influence of breathing pattern and activity on regional deposition of inhaled particles. Section 2 shows comparative studies of aerosol deposition in experimental animals and humans. Subsequent sections explore the mineral content of lungs to differing exposures; biological effects of dusts; hazard parameters; dust measurement; exposure of workers to vermiculite and attapulgite; effects of dust exposure in the coal mining industry; and effects of silica dust exposure. Other topics of significance include toxicity of artificial mineral fibers and utility of magnetopneumography as a non-invasive investigational test.




Inhaled Particles


Book Description

Inhaled Particles integrates all that is known about inhaled particles in a unified treatment. It aims to provide a scientific framework essential to a reasonable understanding of inhaled particles. The emphasis is placed on demonstrating the key roles of lung morphology on airflow and particle transport as well as identifying physical and biological factors that influence deposition. Special attention is paid to maintaining consistency of treatment and a balance between theoretical modeling and experimental measurements. The book covers all important aspects of inhaled particles including inhalability, aerosol dispersion, particle deposition, and clearance. It reviews concisely the basic background of lung morphology, respiratory physiology, aerodynamics, and aerosol science pertinent to the subject. Essential aspects of health effects and applications are also included. An easy-to-read, self contained introduction to the field An excellent source of updated research information Useful for students and professionals in aerosol science, environmental health science, occupational hygiene, health physics and biomedical engineering




Cardiovascular Effects of Inhaled Ultrafine and Nano-Sized Particles


Book Description

This book assists scientists, toxicologists, clinicians, and public health regulators to understand the complex issues that determine the impact of air pollution on the cardiovascular system. It covers a range of relevant topics including particulate matter (PM) sources and characterization, methods of exposure, impact of PM on cells and systems, role of particles in the pathophysiology of cardiovascular disease, risk assessment, and potential environmental and therapeutic interventions.







Toxicology of Inhaled Materials


Book Description

This book deals with the methods and scientific basis of inhalation toxicology. It describes devices and facilities needed to expose animals to inhaled particles and gases as well as approaches to estimating or measuring the fraction of the inhaled material that is retained in the respiratory tract. The book then reviews the evergrowing repertoire of techniques that can be used to measure the responses elicited by the exposure. Quantitative and qualitative anatomical, physiological, and biochemical strategies are discussed in detail. We believe that the toxicology of inhaled materials is an important and timely topic for several'reasons. During the past decade, morbidity and mortality attributable to cardiovascular disease have significantly decreased. Progress in combatting cancer, the second most important cause of death, has been slower, and lung cancer actually became the leading cause of death in men and the second leading cause of cancer death in women. In addition, the incidence of non-neo plastic respiratory diseases such as emphysema, fibrosis, and chronic bronchitis has increased the past decade. In the United States, the National Institutes of Health (NIH) has recently reported that chronic obstructive pulmonary disease affects nearly 10 miliion persons and accounts for 59,000 deaths yearly; indeed, it ranks as the fifth leading cause of death. Because the incidence is increasing, the NIH estimates that it may become the nation's fourth or even third leading cause of death by the year 2000.