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.
Results
Showing 1 to 20 of 27 for “"emission inventory"”.
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Mineralogy-based global anthropogenic combustion-iron emission inventory
… of magnitudes. Anthropogenic combustion-iron emissions are thought to be the missing link in some of the ocean regions and are currently underestimated in inventories along with a poor fuel-based solubility representation approach in contrast to dust-iron emissions which are better constrained …
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Constraining a historical black carbon emission inventory of the United States from 1960-2000
… the accuracy of the black carbon (BC) historical emission inventory of the United States over the period 1960-2000, I studied the transport of global BC emissions and ambient air concentrations using the Community Atmosphere Model. I formulated the relationship between emissions and concentrations …
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Emission Measurement of Air Pollutants from CNG-gasoline Bi-fuel Vehicles
The estimation of emission factors (EFs) is the basis of accurate emission inventory. However, the EFs of air pollutants for motor vehicles vary under different operating conditions, which will cause uncertainty in developing emission inventory. Natural gas (NG), considered as a “cleaner” fuel than …
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Constraining black carbon emission inventories with observations
… influence of BC requires estimates of its emissions over time. This dissertation improves the long-term estimation of historical BC emissions by applying observational constraints and provides more accurate and comprehensive emission information for modeling studies. This work develops a …
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Quantifying Methane Emissions from the Greater Toronto Area
… has committed to reduce its greenhouse gas (GHG) emissions by 30% of2005 levels by 2030. The Greater Toronto Area (GTA, pop. 6.4 million) is the most populous city in Canada, thus accurately quantifying GHG emissions from the GTA is an important step towards meeting Ontario’s commitments. In order …
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Historical anthropogenic emissions of carbon monoxide, 1850 - 2000
We present a bottom-up emission inventory of carbon monoxide (CO) from fossil fuel and biofuel combustion from 1850 to 2000. We reconstruct fuel consumption data of brick and cement industry, as well as production data of iron and steel industry. We develop technology divisions for the four …
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Quantifying the Greenhouse Gas Emissions of Hazards: Incorporating Disaster Mitigation Strategies in Climate Action Plans
… large peaks in a community’s greenhouse gas emission inventory. Components of the built environment destroyed by natural hazards have their useful life shortened, requiring replacement before functionally necessary. Though the hazard itself does not release greenhouse gasses, the demolition …
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Air pollution modelling for the greater Cape Town region
… for each combination was assessed. Appropriate emission information for use with dispersion modelling is not available for the Greater Cape Town area. Therefore, the compilation of an emission inventory formed a considerable part of this study. Emission data from the large industries was …
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Characteristics of Household Solid Waste Open Burning Emissions
… typical associated with household waste fires. Emissions from these ground level burns cause local and regional air pollution, leading to adverse health effects among community residents. It is known that emissions from waste open burning can increase the risk of heart disease; aggravate …
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An uncertainty-focused approach to modeling the atmospheric chemistry of persistent organic pollutants
… the relative importance of uncertainty in emissions and physicochemical properties (including reaction rate constants) to Northern Hemisphere (NH) and Arctic PAH concentrations. NH average concentrations are more sensitive to uncertainty in the atmospheric lifetime than to emissions rate. …
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Assessment of a new metric system to regulate NOₓ aircraft emissions at cruise
NOₓ emissions represent the largest source of air quality impacts attributed to aircraft. The largest part of these impacts are due to emissions during cruise where 90% of fuel burn occurs. NOₓ emissions cause an increase of surface PM2.5 and O3 concentrations that adversely affect human health. …
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Mobile Laboratory Measurement of Black Carbon, Particulate Polycyclic Aromatic Hydrocarbons and Other Exhaust Emissions in Mexico City
… BC, PPAHs and many other gas- and particle-phase emissions were measured in Mexico City using a mobile laboratory during the Mexico City Metropolitan Area field campaign in April 2003 (MCMA-2003). The main goal of this research is to estimate emissions of BC and particulate PAHs (PPAHs) for Mexico …
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Ambient air pollution monitoring, modelling and human health risks in Thulamela Municipality, Vhembe District of Limpopo Province, South Africa
… This research integrates the development of an emission inventory for criteria pollutants (SO₂, NOₓ, CO, PM2.5, and PM₁₀), real-time PM2.5 monitoring using Dylos DC1700 low-cost sensors (LCSs), PM2.5 dispersion modelling with AERMOD, health risk assessment (HHRA), and machine learning-based …
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Determining The Effectiveness Of Satellite Remote Sensing Products To Quantify Aerosol Pollution In The Semi-Arid Western U.S.
… weather balloon soundings, weather stations, emission inventory data, and model meteorological variables were used. The spatially resolved (12km x 12km horizontal resolution), daily PM2.5 estimates will be useful in future research associated with modeling smoke concentrations in urban areas, …
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Bayesian and geostatistical analysis of the effect of air pollution on asthma hospitalisation in Perth
… areas. The data used in this study are: averaged emission inventory data (NO, CO and PM10) in 2006 and records of asthma hospitalisation for 75 postcodes in the Perth metropolitan region. A time series analysis of the data shows that the seasonality for NO2 and CO coincides with the health data …
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THE ECOLOGICAL ECONOMICS OF SUSTAINABLE TOURISM; LOCAL VERSUS GLOBAL ECOLOGICAL FOOTPRINTS IN VAL DI MERSE, ITALY
… and the area's tradeoffs in greenhouse gas emission inventory.
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Air Pollutant Concentrations and Trends over the Eastern U.S. and China: Aircraft Measurements and Numerical Simulations
… for tropospheric SO2. Analyses of the EPA CEMS emission data showed parallel reductions. A case study of tropospheric O3 and SO2 over downwind area of Baltimore showed that the regional transport by westerly wind from Ohio and Pennsylvania play an important role in the local air quality issues. …
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Technology-based past and future emission inventories for the transportation sector
Emission inventories are necessary inputs to atmospheric models in determining air quality, health, and climate impacts. Transportation sector contributes greatly to emissions of all kinds of pollutants, thus it is crucial to understand its emissions and impacts. This dissertation improves the …
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Impact of Indoor Sources of Emission on Ambient Air Quality
Indoor organic emissions 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 …
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Modeling The Evolution Of Vehicle Exhaust Plume Near Road And In Laboratory Dilution Systems Using The Ctag Model
… to reduce the uncertainties in the traffic emission inventory and characterize the spatial and temporal impacts of pollutants on near-road air quality, which is critical to assessing human exposure. This dissertation presents the development and applications of an environmental turbulent …
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