Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 20 of 49 for “"Ambient Air Quality"”.
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Analysis of trends in ambient air quality
Thesis: M.S., Massachusetts Institute of Technology, Sloan School of Management, 1977
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Measuring ambient air quality using low-cost sensors
Exposure to ambient air pollution increases morbidity and mortality - it is the leading environmental risk factor for the global burden of disease. Accurate and reliable air quality measurements can help identify sources of pollution, enabling mitigation strategies that lead to longer, healthier …
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Impact of Indoor Sources of Emission on Ambient Air Quality
… are crucial regarding public health and air quality concerns. Many indoor emissions stem from solvent evaporation of volatile chemical products (VCPs), a broad class of sources emerging as a significant contributor to urban air pollution as emissions from classic sources like traffic has …
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Concentration profiles and mapping of ambient air quality in the Shenandoah National Park
A graphical system was developed to represent airborne air quality monitoring data. The representations developed included three—dimensional spatial mapping, percentage and frequency distributions, and altitude—based scatter diagrams. Elementary statistical analyses and correlations of the measured …
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Modification of an ambient air quality model for assessment of US naval aviation emittants.
Two programs which form part of a generalized air quality assessment model for USAF operations were obtained and analyzed. Areas of incompatibility with USN aircraft operations were identified and modified to closely approximate these operations. Data were obtained by observation of operations at a …
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Application of GIS in Visualization and Assessment of Ambient Air Quality for SO2 in Lima Ohio
The deterioration of urban air quality due to industrialization or other anthropogenic reasons is of great concern because it poses serious threats to environment and human health. EPA regulates and monitors air quality to protect public health and welfare at stations located throughout USA. …
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Assessment of sources of uncertainty in passive samplers of ambient air quality : evaluation Lakeland Industry and Community Association airshed 2009-2011
… are useful in monitoring general changes in ambient air quality at low concentrations, this work strongly suggests that passive sampler data should not be used for regulatory monitoring.
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The association between ambient air pollution and cardiorespiratory health outcomes of adults residing in informal settlements of the Western Cape in a 12 month period
… There is limited data on the association between ambient air pollution cardiorespiratory outcomes among adults especially among populations with low socio-economic status in low- and middle income countries. Objectives: A cross-sectional cohort study was conducted in four informal settlements of …
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The rise and fall of open market emissions trading in New Jersey
… greater degree of flexibility in meeting federal air compliance directives and simultaneously move the state towards the attainment of National Ambient Air Quality Standards (NAAQS), this program is now slated for termination following scrutiny from the federal Environmental Protection Agency …
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Determination of Size Fractions and Concentrations of Airborne Particulate Matter Generated From Construction and Demolition Waste Processing Facilities
… study involved quantifying and qualifying airborne particulates at three C&D processing facilities. Active stationary particulate sampling devices were employed to quantify the particle sizes of interest. Results were compared to United States Environmental Protection Agency (EPA) National …
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An exercise in selecting low-cost air quality sensor placements within an urban environment
Air pollution poses the most important environmental health risk to citizens of major cities all over the world. The high cost of current monitoring programs means that enforcement of current regulation, such as the United States Environmental Protection Agency's ambient air quality standards, can …
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Tauragės miesto oro taršos tyrimas /
… To investigate the influencing factors of air pollution in the Tauragė Town. In this paper analyzes the laws governing environmental protection of air pollution, EU environmental policy and air protection directives. Analyzed ambient air quality in Lithuania and Tauragė city. Urban air …
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Modeling the Effects of Local Air Pollution Control Measures on Air Quality in the Shenandoah Valley
Air quality in the Shenandoah Valley has deteriorated in recent years. The valley exceeds the National Ambient Air Quality Standards for ozone (O3) a few days each year, and with stricter fine particulate matter (PM2.5) standards coming into effect, the valley risks exceeding those as well. …
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Time Series Analysis of Fine Particulates Matter (PM2.5) in Chaoyang District of Beijing
Air pollution in Beijing is becoming hard to ignore, however, there are no long-term studies examining the particle pollution such as PM 2.5 concentration. This study describes current and predicts future PM 2.5 pollution for a three-year period, 1st January 2010 to 31st December 2012, from the …
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Some Cost Effective Techniques for Reducing NOx Emissions at Blue Ridge Paper Company
… is then considered. Topics such as the Clean Air Act, its amendments in 1990, the National Ambient Air Quality Standards, and the NOx SIP Call are all considered. The State of North Carolina's NOx SIP is assessed, and specific details are quoted as they pertain to industries across the State. …
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Autonomous low-cost network of ozone sensors: to study the spatial distribution and exposure in underserved agricultural communities in central California
Ozone (O3), a criteria air pollutant, is often overlooked in rural and remote regions, leaving the spatial distribution and exposure levels poorly understood, particularly in underserved communities. In this study, we developed and deployed a network of 12 autonomous, low-cost, and solar-powered …
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Particulate Matter Air Monitoring Network in the San Francisco Bay Area: Assessment and Management Recommendations
… matter (PM<sub>10</sub> and PM<sub>2.5</sub>) air monitoring network operated by the Bay Area Air Quality Management District (BAAQMD), or Air District, and to make management recommendations on how the air monitoring network may be improved. Improving the air monitoring network can lead to a …
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The air quality and health impacts of aviation in Asia
… impacts of aviation in Asia by modeling the air quality in Asia and applying Concentration-Response Functions (CRFs) to the aviation-attributable PM2.5 perturbations. In order to quantify the perturbation to the ambient air quality due to aviation emissions, the Community Multiscale Air …
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Monitoring Reduction Efforts for PM2.5 in Ellensburg,WA Using Community-Based Social Marketing to Examine Behavioral Change
… as being vulnerable for violating National Ambient Air Quality Standards for particulate pollution (PM<sub>2.5</sub>). In the Kittitas Basin, winter-time frequent air inversions and stagnant air events trap pollution near the ground, elevating pollutant concentrations during winter months. …
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Essays on trade, CO₂, and the environment
… people undertake to protect themselves against air pollution. We analyze how the NOx Budget Trading Program, a large cap-and-trade market in the Eastern U.S., affected air pollution emissions, ambient air quality, medication purchases, hospitalizations, and mortality. We find that the market …
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