1 edition of Effects of inhaled particles on human health found in the catalog.
Effects of inhaled particles on human health
by National Research Council of Canada, Associate Committee on Scientific Criteria for Environmental Quality in Ottawa
Written in English
|Statement||Subcommittee on Air.|
|Series||Publication of the Environmental Secretariat -- no. NRCC 18564, Publication of the Environmental Secretariat (National Research Council of Canada. Environmental Secretariat) -- no. NRCC 18564|
|Contributions||National Research Council Canada. Subcommittee on Air|
|LC Classifications||TD171.5.C2 N383 no.NRCC 18564, RA576 E34|
|The Physical Object|
|Pagination||177 p. :|
|Number of Pages||177|
Deposition and effects of inhaled ultrafine carbon particles in healthy subjects at rest. Presented at the PM Particulate Matter and Health, Charleston, SC, January , R (). Inhaled Particles VIII, the latest in this series of international symposia, was held in Cambridge on August and was entitled "Occupational and Environmental Implications for Human Health," reflecting the aim of the Scientific Committee to consider health as the central theme of the conference.
Studies have linked particle pollution exposure to a variety of respiratory health effects, including: Respiratory symptoms including cough, phlegm, and wheeze. Acute, reversible decrement in pulmonary function. Inflammation of the airways and lung (this is acute and neutrophilic). Bronchial hyperreactivity. Acute phase reaction. Diffusion: The random motion of particles is similar to gas molecules in the air when particles are smaller than µm. When particles are in random motion, they deposit on the lung walls mostly by chance. This movement is also known as the "Brownian motion". The smaller the particle size, the more vigorous the movement is.
The mechanisms by which exposure to fine particle pollution can affect the cardiovascular system are under continuous examination. Exposure to inhaled fine particles appears to affect cardiovascular health through three primary pathways: Systemic inflammation. Translocation into the blood. Direct and indirect effects on the autonomic nervous. 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.
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Get this from a library. Effects of inhaled particles on human health: influence of particle size and shape. [National Research Council Canada.
Subcommittee on Air.;]. His research is in several areas including: predicting doses from inhaled particles; health effects of inhaled air pollutants; and applied aerosol physics.
He has published over scientific papers, and authored and/or edited four previous books on aerosol inhalation : Hardcover. 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.
In many cases it is unavoidable that nanoparticles are released into the environment, either during the production processes or during the use of a product made from these particles.
It is also realized that combustion processes like traffic and power plants release nanoparticles into the atmosphere. Medical and Pharmaceutical Aerosols. Breathing Zone Exposure Assessment.
Mechanisms of Particle Deposition. Aerosol Dose. Modeling Deposition of Inhaled Particles. Aerosol Chemistry and Physics: An Indoor Perspective. Chemical Analyses of Particle Filter Deposits. Health Effects of Ambient Ultrafine Particles. Nanoparticle Cell Penetration.
Research Category: Air, Health Effects, Particulate Matter, Air Quality and Air Toxics Description: Ultrafine particles (UFP) may contribute to the health effects of ambient particle exposure because of their high number concentration and surface area, a high deposition efficiency in the pulmonary region, and a high propensity to penetrate the.
In this review we highlight the possible toxic human health effects that can result from exposure to ultrafine particles (UFPs) generated by anthropogenic activities and their cardiopulmonary outcomes.
The comparability of engineered NPs to UFPs suggests that the human health effects are likely to be by: CuO nanoparticles were the most potent regarding cytotoxicity and DNA damage. ZnO showed effects on cell viability as well as DNA damage, whereas the TiO 2 particles (a mixture of rutile and anatase) only caused DNA damage.
For iron oxide particles (Fe 3 O 4, Fe 2 O 3), no or low toxicity was observed, Cited by: Health effects of dust What is dust. Dust is a common air pollutant generated by many different sources and activities. Terms explained. Pollutant – a substance that has been introduced to the environment and has undesired or negative effects.
Particles – tiny solid and liquid substances that can float in the air. Many particles are invisible. To help public health professionals and others address the needs of persons living or working near hazardous waste sites, the information in this section is organized first by route of exposure (inhalation, oral, and dermal) and then by health effect (death, systemic, immunological, neurological, reproductive, developmental, genotoxic, and carcinogenic effects).
Air Pollution and Health is the first fully comprehensive and current account of air pollution science and it impact on human health. It ranges in scope from meteorology, atmospheric chemistry, and particle physics to the causes and scope of allergic reactions and.
• contributions of particles of outdoor origin to actual human exposures • underlying mechanisms (pulmonary, vascular, cardiac) • Ultrastructural analysis of lung tissue found inhaled ultrafine particles were located within and beyond the epithelial responsible downstream for health effects.
17File Size: 2MB. Flemming R. Cassee is head of the Department of Inhalation Toxicology, deputy head of the Center for Environmental Health, and leader of the program on air pollution and health at the National Institute for Public Health and the Environment (RIVM), Bilthoven, the Netherlands.
Contributing to the effects of ultrafine particles is their very high size-specific deposition when inhaled as singlet ultrafine particles rather than as aggregated particles.
It appears also that ultrafine particles, after deposition in the lung, largely escape alveolar macrophage surveillance Cited by: Answer: There are a large number of epidemiological studies showing that PM 10 (which includes both fine and coarse particles) has adverse health gh smaller in number, the existing studies on the fine particle fraction (PM ) show that there are also health effects from this fraction.
The unipolar charges carried by these particles can influence the deposition of inhaled particles in the lungs.
Recently published studies using a hollow lung cast of a human larynx-tracheobronchial tree and in vivo experiments in human subjects have demonstrated that increased deposition was due to electrostatic charges on the particle. Aerosol Sci., Vol. 21, Suppl. 1, pp. $,/90 $ + Printed in Great Britain.
Pergamon Press plc RETENTION AND CLEARANCE MECHANISMS OF INHALED PARTICLES P. Gehr, S. Schiirch, M. Geiser and V. Im Hof Department of Anatomy, University of Berne, P.O.
BoxCH Berne 9, Switzerland ABSTRACT We have investigated structure and function of the airway Cited by: 8. Human health effects of micro- and nano- plastics no published data to indicate that marine micro- and nano-plastics pose a risk to human health • Much evidence for the Inhaled fibre.
Once inhaled, these particles can affect the heart and lungs and cause serious health effects. PM (particles with a diameter of micrometres or less): these particles are so small they can get deep into the lungs and into the bloodstream.
There is sufficient evidence that exposure to PM over long periods (years) can cause adverse. Purchase Inhaled Particles V - 1st Edition. Print Book & E-Book. ISBNBook Edition: 1. Incomplete combustion processes can emit organic pollutants, metals, and fine particles. Combustion by-products represent global human and environmental health challenges that are relevant not only in heavily industrialized nations, but also in developing nations where up to 90% of rural households rely on unprocessed biomass fuels for cooking, warmth, and by: Human health may ultimately be affecteddue to the transfer of these plastics and/or contaminant chemicals (e.g., adsorbed pollutants, plastic additives) through the food web.
Due to the emerging nature of microplastics and nanoplastics, human information is lacking for exposure and health effects. Current.A 'read' is counted each time someone views a publication summary (such as the title, abstract, and list of authors), clicks on a figure, or views or downloads the full-text.