Inhaled Particles Iii

Inhaled Particles and Vapors covers the proceedings of an International Symposium by the same title on September 28 – October 1, 1965, organized by the British Occupational Hygiene Society. This book is organized into seven sections encompassing 48 chapters. Section I reviews the anatomy and physiology of human lung. Section II describes the pulmonary response to dust in terms of airway changes and reactions to silica. Sections III and IV deal with lung clearance in animals, the retention, penetration, and elimination of inhaled dusts, and lung deposition and clearance in human. Section V emphasizes the sources of dust inhaled by the human lungs, while Section VI discusses the relationship between pneumonoconiosis and dust exposure. Section VII presents the results of the investigations of dust exposure. This book will prove useful to pulmonologists, toxicologists, and workers in the field of occupational health.

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.

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.