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Variability In The Fraction Of Ambient Fine Particulate Matter In Indoor Air And Implications For Air Pollution Epidemiology
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Book Synopsis Variability in the Fraction of Ambient Fine Particulate Matter in Indoor Air and Implications for Air Pollution Epidemiology by : Natasha Hodas
Download or read book Variability in the Fraction of Ambient Fine Particulate Matter in Indoor Air and Implications for Air Pollution Epidemiology written by Natasha Hodas and published by . This book was released on 2014 with total page 293 pages. Available in PDF, EPUB and Kindle. Book excerpt: Exposure to ambient fine particulate matter (PM2.5) is associated with multiple negative health outcomes. Studies investigating these associations commonly use PM2.5 concentrations measured at outdoor, central-site monitors to estimate exposure. Because people spend the majority of time indoors, however, the variable efficiency with which ambient PM2.5 penetrates and persists indoors is a source of error in epidemiologic analyses. This error generally results in an underestimation of health effects, hampering the detection of associations between ambient PM2.5 exposures and the risk of health outcomes. To reduce this error, practical methods to model indoor concentrations of ambient PM2.5 are needed. This dissertation contributes to exposure science by advancing existing models of residential exposure to ambient PM2.5 and by improving the robustness and accessibility of these tools. First, drivers of variability in the fraction of ambient PM2.5 found indoors (F) are identified and the potential for this variability to explain observed heterogeneity in PM-mediated health-effect estimates is explored. Next, a physically-based mass-balance model and modeling tools that account for variability in human activity patterns (e.g. time spent in various indoor and outdoor environments) are used to compute ambient PM2.5 exposures that account for the modification of PM2.5 with outdoor-to-indoor transport in order to explore whether the use of these refined exposure surrogates reduces error and bias in epidemiologic analyses. Subsequently, this outdoor-to-indoor transport model is evaluated and refined using measured indoor and outdoor PM2.5 concentrations and air exchange rates, providing a practical and robust tool for reducing exposure misclassification in epidemiologic studies. Finally, the volatility basis set is used for the first time to study shifts in the gas-particle partitioning of ambient organics with transport indoors. This dissertation provides guidance regarding measurements and data most critically needed to facilitate the prediction of refined exposure surrogates in large epidemiological studies and, thus, informs the design of future sampling campaigns and epidemiologic studies. It enables a better accounting of ambient particle penetration into and persistence in the indoor environment and constitutes an important advancement in the efforts to reduce exposure error in epidemiologic studies and to elucidate relationships between PM2.5 exposure and adverse health outcomes.
Author :National Academies of Sciences, Engineering, and Medicine Publisher :National Academies Press ISBN 13 :0309443652 Total Pages :159 pages Book Rating :4.3/5 (94 download)
Book Synopsis Health Risks of Indoor Exposure to Particulate Matter by : National Academies of Sciences, Engineering, and Medicine
Download or read book Health Risks of Indoor Exposure to Particulate Matter written by National Academies of Sciences, Engineering, and Medicine and published by National Academies Press. This book was released on 2016-09-26 with total page 159 pages. Available in PDF, EPUB and Kindle. Book excerpt: The U.S. Environmental Protection Agency (EPA) defines PM as a mixture of extremely small particles and liquid droplets comprising a number of components, including "acids (such as nitrates and sulfates), organic chemicals, metals, soil or dust particles, and allergens (such as fragments of pollen and mold spores)". The health effects of outdoor exposure to particulate matter (PM) are the subject of both research attention and regulatory action. Although much less studied to date, indoor exposure to PM is gaining attention as a potential source of adverse health effects. Indoor PM can originate from outdoor particles and also from various indoor sources, including heating, cooking, and smoking. Levels of indoor PM have the potential to exceed outdoor PM levels. Understanding the major features and subtleties of indoor exposures to particles of outdoor origin can improve our understanding of the exposureâ€"response relationship on which ambient air pollutant standards are based. The EPA's Indoor Environments Division commissioned the National Academies of Sciences, Engineering, and Medicine to hold a workshop examining the issue of indoor exposure to PM more comprehensively and considering both the health risks and possible intervention strategies. Participants discussed the ailments that are most affected by particulate matter and the attributes of the exposures that are of greatest concern, exposure modifiers, vulnerable populations, exposure assessment, risk management, and gaps in the science. This report summarizes the presentations and discussions from the workshop.
Book Synopsis Review of the national ambient air quality standards for particulate matter policy sssessment of scientific and technical information. by :
Download or read book Review of the national ambient air quality standards for particulate matter policy sssessment of scientific and technical information. written by and published by DIANE Publishing. This book was released on 1982 with total page 514 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author :Committee on Research Priorities for Airborne Particulate Matter Publisher :National Academies Press ISBN 13 :0309591929 Total Pages :212 pages Book Rating :4.3/5 (95 download)
Book Synopsis Research Priorities for Airborne Particulate Matter by : Committee on Research Priorities for Airborne Particulate Matter
Download or read book Research Priorities for Airborne Particulate Matter written by Committee on Research Priorities for Airborne Particulate Matter and published by National Academies Press. This book was released on 1998-05-14 with total page 212 pages. Available in PDF, EPUB and Kindle. Book excerpt: New National Ambient Air Quality Standards for airborne particles smaller than 2.5 micrometers, called PM2.5, were issued by the U.S. Environmental Protection Agency (EPA) amidst scientific uncertainty and controversy. In response to a request from Congress, Research Priorities for Airborne Particulate Matter, the first of four books in a series, offers a conceptual framework for an integrated national program of particulate-matter research, identifies the 10 most critical research needs linked to key policy-related scientific uncertainties, and describes the recommended timing and estimated costs of such research. The committee concludes that EPA should devote more resources to investigating the relationships between fixed-site outdoor monitoring data and actual human breathing-zone exposures to ambient particulate matter and to identifying the most biologically important constituents and characteristics of particulate matter through toxicological studies. The recommended research activities are critical to determining actual exposures of human subpopulations most susceptible to harm from the most hazardous constituents of particulate matter. Future research will be an investment in public health and a means to ensure that resources spent on control technology and regulatory compliance will have a reasonable probability of success.
Book Synopsis Air Quality Criteria for Particulate Matter by :
Download or read book Air Quality Criteria for Particulate Matter written by and published by . This book was released on 1996 with total page 800 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Review of the national ambient air quality standards for particulate matter policy assessment of scientific and technical information. by :
Download or read book Review of the national ambient air quality standards for particulate matter policy assessment of scientific and technical information. written by and published by DIANE Publishing. This book was released on 1996 with total page 525 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author :National Center for Environmental Assessment (Research Triangle Park, N.C.) Publisher : ISBN 13 : Total Pages :784 pages Book Rating :4.:/5 (6 download)
Book Synopsis Air Quality Criteria for Particulate Matter by : National Center for Environmental Assessment (Research Triangle Park, N.C.)
Download or read book Air Quality Criteria for Particulate Matter written by National Center for Environmental Assessment (Research Triangle Park, N.C.) and published by . This book was released on 1996 with total page 784 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Exposure Science in the 21st Century by : National Research Council
Download or read book Exposure Science in the 21st Century written by National Research Council and published by National Academies Press. This book was released on 2012-10-28 with total page 210 pages. Available in PDF, EPUB and Kindle. Book excerpt: From the use of personal products to our consumption of food, water, and air, people are exposed to a wide array of agents each day-many with the potential to affect health. Exposure Science in the 21st Century: A Vision and A Strategy investigates the contact of humans or other organisms with those agents (that is, chemical, physical, and biologic stressors) and their fate in living systems. The concept of exposure science has been instrumental in helping us understand how stressors affect human and ecosystem health, and in efforts to prevent or reduce contact with harmful stressors. In this way exposure science has played an integral role in many areas of environmental health, and can help meet growing needs in environmental regulation, urban and ecosystem planning, and disaster management. Exposure Science in the 21st Century: A Vision and A Strategy explains that there are increasing demands for exposure science information, for example to meet needs for data on the thousands of chemicals introduced into the market each year, and to better understand the health effects of prolonged low-level exposure to stressors. Recent advances in tools and technologies-including sensor systems, analytic methods, molecular technologies, computational tools, and bioinformatics-have provided the potential for more accurate and comprehensive exposure science data than ever before. This report also provides a roadmap to take advantage of the technologic innovations and strategic collaborations to move exposure science into the future.
Book Synopsis Air-quality Modeling and Source-apportionment of Fine Particulate Matter: Implications and Applications in Time-series Health Studies by : Amit Marmur
Download or read book Air-quality Modeling and Source-apportionment of Fine Particulate Matter: Implications and Applications in Time-series Health Studies written by Amit Marmur and published by . This book was released on 2006 with total page 186 pages. Available in PDF, EPUB and Kindle. Book excerpt: Air-quality modeling tools may be useful in such investigations of the health effects of air-pollution and PM2.5 specifically. Emissions-based three-dimensional air quality models may introduce several benefits when applied in epidemiologic studies, such as improved spatial representativeness and availability/continuity of data, as well as information on source impacts. Receptor-based models are a common tool for apportioning of ambient levels of pollutants among the major contributing sources, and can be useful in discerning the relative health impacts of different sources.
Book Synopsis Cardiovascular Effects of Inhaled Ultrafine and Nano-Sized Particles by : Flemming R. Cassee
Download or read book Cardiovascular Effects of Inhaled Ultrafine and Nano-Sized Particles written by Flemming R. Cassee and published by John Wiley & Sons. This book was released on 2011-03-29 with total page 608 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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.
Book Synopsis Indoor Pollutants by : National Research Council
Download or read book Indoor Pollutants written by National Research Council and published by National Academies Press. This book was released on 1981-01-01 with total page 553 pages. Available in PDF, EPUB and Kindle. Book excerpt: Discusses pollution from tobacco smoke, radon and radon progeny, asbestos and other fibers, formaldehyde, indoor combustion, aeropathogens and allergens, consumer products, moisture, microwave radiation, ultraviolet radiation, odors, radioactivity, and dirt and discusses means of controlling or eliminating them.
Book Synopsis Cleaning Pakistan’s Air by : Ernesto Sánchez-Triana
Download or read book Cleaning Pakistan’s Air written by Ernesto Sánchez-Triana and published by World Bank Publications. This book was released on 2014-07-03 with total page 207 pages. Available in PDF, EPUB and Kindle. Book excerpt: The harm to Pakistanis’ health, economy, and environment from urban air pollution is among the highest in South Asia, exceeding several high-profile causes of mortality and morbidity in Pakistan. This report details a broad spectrum of research on Pakistan’s air quality management challenges and presents concrete steps to achieve improvements.
Book Synopsis Health Effects of Particulate Air Pollution by : United States. Congress. House. Committee on Science
Download or read book Health Effects of Particulate Air Pollution written by United States. Congress. House. Committee on Science and published by . This book was released on 2002 with total page 112 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Air Quality Criteria for Particulate Matter by : United States. National Air Pollution Control Administration
Download or read book Air Quality Criteria for Particulate Matter written by United States. National Air Pollution Control Administration and published by . This book was released on 1969 with total page 246 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Climate Change, the Indoor Environment, and Health by : Institute of Medicine
Download or read book Climate Change, the Indoor Environment, and Health written by Institute of Medicine and published by National Academies Press. This book was released on 2011-10-01 with total page 286 pages. Available in PDF, EPUB and Kindle. Book excerpt: The indoor environment affects occupants' health and comfort. Poor environmental conditions and indoor contaminants are estimated to cost the U.S. economy tens of billions of dollars a year in exacerbation of illnesses like asthma, allergic symptoms, and subsequent lost productivity. Climate change has the potential to affect the indoor environment because conditions inside buildings are influenced by conditions outside them. Climate Change, the Indoor Environment, and Health addresses the impacts that climate change may have on the indoor environment and the resulting health effects. It finds that steps taken to mitigate climate change may cause or exacerbate harmful indoor environmental conditions. The book discusses the role the Environmental Protection Agency (EPA) should take in informing the public, health professionals, and those in the building industry about potential risks and what can be done to address them. The study also recommends that building codes account for climate change projections; that federal agencies join to develop or refine protocols and testing standards for evaluating emissions from materials, furnishings, and appliances used in buildings; and that building weatherization efforts include consideration of health effects. Climate Change, the Indoor Environment, and Health is written primarily for the EPA and other federal agencies, organizations, and researchers with interests in public health; the environment; building design, construction, and operation; and climate issues.
Author :National Academies of Sciences Engineering and Medicine Publisher : ISBN 13 :9780309712750 Total Pages :0 pages Book Rating :4.7/5 (127 download)
Book Synopsis Health Risks of Indoor Exposure to Fine Particulate Matter and Practical Mitigation Solutions by : National Academies of Sciences Engineering and Medicine
Download or read book Health Risks of Indoor Exposure to Fine Particulate Matter and Practical Mitigation Solutions written by National Academies of Sciences Engineering and Medicine and published by . This book was released on 2024-02-19 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Schools, workplaces, businesses, and even homes are places where someone could be subjected to particulate matter (PM) ? a mixture of solid particles and liquid droplets found in the air. PM is a ubiquitous pollutant comprising a complex and ever-changing combination of chemicals, dust, and biologic materials such as allergens. Of special concern is fine particulate matter (PM2.5), PM with a diameter of 2.5 microns ( Health Risks of Indoor Exposure to Fine Particulate Matter and Practical Mitigation Solutions explores the state-of the-science on the health risks of exposure to fine particulate matter indoors along with engineering solutions and interventions to reduce risks of exposure to it, including practical mitigation strategies. This report offers recommendations to reduce population exposure to PM2.5, to reduce health impacts on susceptible populations including the elderly, young children, and those with pre-existing conditions, and to address important knowledge gaps.
Book Synopsis Physical and Chemical Characteristics of Indoor Particulate Matter by : Taneja Ajay
Download or read book Physical and Chemical Characteristics of Indoor Particulate Matter written by Taneja Ajay and published by LAP Lambert Academic Publishing. This book was released on 2015-06-15 with total page 92 pages. Available in PDF, EPUB and Kindle. Book excerpt: Most of the data available for particulate is especially for outdoors. Most of the people spend their time indoors, where exposure to majority air pollution is quite different from that of outdoors. Deterioration of indoor air quality with income growth made many feel concerned about the issue of the pollution-income growth relationship. The possible role of socioeconomic status appears of particular interest, especially after the findings that emerged a chronic health effects of indoor air pollution. It is well known fact that persons of lower income group have generally poorer health than people living in middle and high income group homes, because of limited resources and unhealthy modes of dusting, cleaning and cooking on traditional unvented mud stoves, so people belonging to low socioeconomic status may receive higher exposure to air pollution than middle and high income group peoples. Therefore, understanding of chemical and morphological composition of fine particulate matter is critical for the assessment of policy interventions to reduce adverse health effects
