Digital Commons Network^™

Hyperlocal Air Quality Exposure Assessment To Support Health Studies, Pradeep Prathibha

McKelvey School of Engineering Theses & Dissertations

Hyperlocal air pollution exposure is driven by local emission sources, meteorology, and the built environment, with traffic-related emissions modulating primary and secondary pollutant concentrations against a variable background of similar contaminants from other sources. Recent studies show that intra-urban air quality has temporally persistent patterns that sharply vary 5-8 times within a city block; currently, regulatory ambient air quality monitoring (2-5 fixed-site monitors per 1000 km2 in U.S. census urban areas) cannot capture exposure at this spatial resolution. This dissertation aims to advance methods relying on fixed-site and mobile measurements using high-time resolution aerosol instruments as well as low-cost sensors …

Effectiveness Of Cannabidiol And Resveratrol Against Diesel Exhaust Particle-Induced Lung Cell Cytotoxicity, Emily Brothersen

Fall Student Research Symposium 2021

Environmental air pollution poses a significant health risk to individuals across the world. Diesel exhaust particles (DEPs), a major component of air pollution, have been shown to cause lung damage leading to cancer, respiratory infections, and premature death. Antioxidants, such as resveratrol, have previously demonstrated protective properties against DEP-induced cytotoxicity and reactive oxygen species. Cannabinoids extracted from hemp species have also been found to have powerful antioxidant properties, though these properties have not been thoroughly explored. In this study, A549 human lung carcinoma cells were used as a cellular model to determine the effectiveness of cannabinoids’ antioxidant properties against DEP-induced …

Three Essays In Development And Environmental Economics, Michael Benjamin Goodwin

Economics ETDs

This dissertation explores three unique topics in development and environmental economics. The first paper looks at the value people place on clean air in Mexico City using an alternative air pollution measure to the typical ground measurement. Research and policy addressing air pollution remains hampered by a lack of ground level air quality data. This study attempts to overcome this issue using aerosol optical depth from satellite imagery as a proxy for air pollution. Using a hedonic framework and least squares estimation, results show that Mexico City residents place a significant value on clean air as demonstrated by their choices …

Air Pollution, Behavioral Bias, And The Disposition Effect In China, Jennifer (Jie) Li, Massimo Massa, Hong Zhang, Jian Zhang

Research Collection Lee Kong Chian School Of Business

Inspired by the recent health science findings that air pollution affects mental health and cognition, we examine whether air pollution can intensify the cognitive bias observed in the financial markets. Based on a proprietary data set obtained from a large Chinese mutual fund family consisting of complete trading information for more than 773,198 ac-counts in 247 cities, we find that air pollution significantly increases investors' disposition effects. Analysis based on two plausible exogenous variations in air quality (the vast dissi-pation of air pollution caused by strong winds and the Huai River policy) supports a causal interpretation. Mood regulation provides a …

Simulated Wildfire Smoke Significantly Alters Sperm Dna Methylation Patterns In A Murine Model, Adam Schuller, Chiara Bellini, Timothy G. Jenkins, Matthew Eden, Jacqueline Matz, Jessica Oakes, Luke Montrose

Public Health and Population Science Faculty Publications and Presentations

Wildfires are now a common feature of the western US, increasing in both intensity and number of acres burned over the last three decades. The effects of this changing wildfire and smoke landscape are a critical public and occupational health issue. While respiratory morbidity due to smoke exposure is a priority, evaluating the molecular underpinnings that explain recent extrapulmonary observations is necessary. Here, we use an Apoe^−/− mouse model to investigate the epigenetic impact of paternal exposure to simulated wildfire smoke. We demonstrate that 40 days of exposure to smoke from Douglas fir needles induces sperm DNA methylation changes …

A Silent Injustice: Air Pollution As A Contributing Factor Of Covid-19 Health Disparities, Spencer Johnson

The Yale Undergraduate Research Journal

COVID-19, the disease caused by SARS-CoV-2 has had a disproportionate impact on Black communities throughout the United States. This paper suggests that air pollution may be a factor for why Black individuals experience markedly poorer health outcomes after contracting COVID-19. It establishes that not only are Black Americans exposed to disproportionate amounts of air pollution, but also that many air pollution-related ailments are the exact ones that have been clinically proven to make COVID-19 more fatal. AV Whe UniWed SWaWeV diVcXVVeV ZhaW a ³neZ noUmal´ entails for healthcare practice and public health policy, this paper makes the case for why …

Towards Creating Smart Cities In Nepal, Ambika P. Adhikari, Keshav Bhattarai

Himalayan Research Papers Archive

Many urban centers in the world are seeking to become smart cities. Nepali city leaders are also aspiring to make their cities smart. A smart city basically has clever improvements made in three sectors of its operations: technological, human, and institutional. Globally, many cities have recently made impressive enhancements in at least one or more of these areas. Nepal’s National Planning Commission (NPC) in 2016 had released a concept paper on smart cities for Nepal, defining smart cities as sustainable, information and technology-based, with high quality services and replicable (NPC 2016). As most Nepali cities still operate with limited infrastructure, …

Racial/Ethnic Disparities In Alzheimer’S Disease Risk: Role Of Exposure To Ambient Fine Particles, Diane Younan, Xinhui Wang, Tara Gruenewald, Margaret Gatz, Marc L. Serre, William Vizuete, Meredith N. Braskie, Nancy F. Woods, Ka Kahe, Lorena Garcia, Fred Lurmann, Joann E. Manson, Helena C. Chui, Robert B. Wallace, Mark A. Espeland, Jiu-Chiuan Chen

Psychology Faculty Articles and Research

Background

Whether racial/ethnic disparities in Alzheimer’s disease (AD) risk may be explained by ambient fine particles (PM_2.5) has not been studied.

Methods

We conducted a prospective, population-based study on a cohort of Black (n=481) and White (n=6004) older women (aged 65-79) without dementia at enrollment (1995-98). Cox models accounting for competing risk were used to estimate the hazard ratio (HR) for racial/ethnic disparities in AD (1996-2010) defined by DSM-IV and the association with time-varying annual average PM_2.5 (1999-2010) estimated by spatiotemporal model.

Results

Over an average follow-up of 8.3 (±3.5) years with 158 incident cases (21 in …

Insignificant Impacts Of Covid-19 Stay-At-Home Orders On Chicago Air Quality, Adam W.T. Steffeck

DePaul Discoveries

With the onset of the COVID-19 pandemic, reports of air quality improvements around the world resulting from the stay-at-home orders were widespread. However, for Chicago, no significant air quality improvements occurred despite large reductions in private vehicle transportation due to the lack of commuters. The city of Chicago is a nexus for long-haul transportation by trucks and trains, which did not decrease during the pandemic. These transportation sources use mostly diesel fuel engines and emit NO_X, a precursor to tropospheric ozone, and PM_2.5, both of which are harmful air pollutants. Using open access EPA air quality …

The Impact Of Air Pollution On Housing Prices., Zhonghua Jin

Dissertations (2016-Present)

Air pollution has been considered as an influential environmental factor affecting both local government policies and the general public’s decisions on housing within large metropolitan areas. In the past few decades, the United States achieved excellent results on a large scale. However, in some major industrial metropolitan areas, air pollution still stays at relatively high levels. In related environmental studies, environmental justice is often emphasized to eliminate or mitigate social imbalance among urban communities. However, fewer studies have adopted quantitative methods to assess the effectiveness of existing environmental policies. Taking the Houston region as an empirical case, this study examines …

Spatio-Temporal Analysis Of The Roadside Transportation Related Air Quality (Startraq) And Neighborhood Characterization, Jaymin Kwon, Yushin Ahn, Steve Chung

Mineta Transportation Institute

To promote active transportation modes (such as bike ride and walking), and to create safer communities for easier access to transit, it is essential to provide consolidated data-driven transportation information to the public. The relevant and timely information from data facilitates the improvement of decision-making processes for the establishment of public policy and urban planning for sustainable growth, and for promoting public health in the region. For the characterization of the spatial variation of transportation-emitted air pollution in the Fresno/Clovis neighborhood in California, various species of particulate matters emitted from traffic sources were measured using real-time monitors and GPS loggers …

Congestion Pricing And The Opportunity To Confront New York City's Air Quality Emergency, Chad Hughes

William & Mary Environmental Law and Policy Review

Poor air quality in New York City is a public health emergency that disproportionately harms the city’s most vulnerable populations. Recent studies have found that exposure to particulate matter pollution previously thought “safe” causes significant damage to perhaps every organ of the human body. While New York City has reduced particulate matter exposure over the last decade, progress has stalled. In fact, climate change, the shift in the automobile market from sedans to SUVs and “light” trucks, and the federal pullback of environmental enforcement under Trump suggest that air pollution in New York City is likely to worsen.

While the …

Reimagining Exceptional Events: Regulating Wildfires Through The Clean Air Act, Emily Williams

Washington Law Review

Wildfires are increasing in both frequency and severity due to climate change. Smoke from these fires causes serious health problems. Land managers agree that prescribed burns help mitigate these negative consequences. Prescribed burns are lower-intensity fires that are intentionally ignited and managed for an ecological benefit. They reduce the amount of smoke produced and limit wildfire damage to natural systems and human property.

The Clean Air Act (CAA) is designed to regulate air pollution to protect public health, yet it exempts wildfire smoke through the exceptional events designation while imposing strict regulations on prescribed burns. Congress and the Environmental Protection …

Air Pollution Exposure And Risk Of Adverse Obstetric And Neonatal Outcomes Among Women With Type 1 Diabetes, Andrew D. Williams, Jenna Kanner, Katherine Grantz, Marion Ouidir, Shanshan Sheehy, Seth Sherman, Candace Robledo, Pauline Mendola

School of Medicine Publications and Presentations

Aims/Hypothesis:

Women with type 1 diabetes have increased risk for poor obstetric outcomes. Prenatal air pollution exposure is also associated with adverse outcomes for women and infants. We examined whether women with type 1 diabetes are more vulnerable than other women to pollution-associated risks during pregnancy.

Methods:

In singleton deliveries from the Consortium on Safe Labor (2002-2008), obstetric and neonatal outcomes were compared for women with type 1 diabetes (n=507) and women without autoimmune disease (n=204,384). Preconception, trimester, and whole pregnancy average air pollutant exposure (ozone (O3), carbon monoxide (CO), particulate matter >10 microns (PM10), PM >2.5 microns (PM2.5), sulfur …

Air Pollution In The Steel City: Assessing The Influence Of Covid-19 On Air Pollution In Allegheny County, Carissa L. Lange

Electronic Theses and Dissertations

Though the novel coronavirus (COVID-19) has sickened millions of individuals, lockdown measures have provided a unique opportunity to analyze air pollution reductions. Reductions in air pollution are especially important in a city like Pittsburgh, where industrial activity has led to elevated levels of particulate matter with an aerodynamic diameter 2.5). The majority of this PM_2.5 pollution comes from two industrial facilities, the Edgar Thomson Steel Works and the Clairton Coke Works. By utilizing a natural experiment, this study sought to determine how large of a role the COVID-19 lockdowns played in improving air quality in the Pittsburgh region. Data …

Composition And Oxidative Potential Of Fine Particulate Matter From Pascagoula, Ms, Madison Smith

Honors Theses

Air pollution is one of the top-ranking risk factors for death and disability around the world, accounting for nearly 4.9 million deaths worldwide (State of Global Air, 2019). Specifically, fine particulate matter (PM_2.5) has been linked to many adverse effects on human health, yet there is very little known about what characteristics exactly cause these adverse health effects and how they cause them. Samples for this study were collected from Pascagoula, MS, a small town located on the Mississippi Gulf Coast that is home to many industrial yards, from September 2013 to December 2013. Black carbon (BC) analysis …

Identifying The Cardiovascular Effects Of Multiple Pollutants., Katlyn Elizabeth Mcgraw

Electronic Theses and Dissertations

Cardiovascular disease (CVD) is the leading cause of death from environmental exposures. Although exposure to PM_2.5 is an established risk factor for CVD, the contribution of other hazardous pollutant exposure to CVD is less clear. Overall, this work aimed to examine the effect of pollutants with lesser documented effects on cardiovascular disease using a multi-pronged approach to exposure assessment. The three aims were to examine the relationship between county-level toxic chemical releases and CVD mortality in the contiguous United States between 2002 and 2012, to assess the relationship between individual-level VOC metabolites and vascular function, and to build multipollutant …

Responses To Fine Particulate Matter (Pm2.5) Exposures In Two Wild-Type Zebrafish Strains, Connor Necaise

Honors Theses

Atmospheric fine particulate matter (PM_2.5) exposure poses great health risks across the globe, causing both acute and chronic illnesses in humans. Therefore, a more complete understanding of the mechanisms in which PM_2.5 induces these adverse health effects is urgently needed. Oxidative stress due to PAHs and other common components of PM_2.5 is a proposed mechanism for its adverse health effects. However, little is known about the actual mechanisms of PM_2.5 damage in humans. This study aimed to distinguish behavioral differences in two lines of zebrafish (AB & 5D) as a result of developmental exposure to …

Household Income And Air Pollution At Public Schools In The United States, Katyland Facas, Kristina Wagstrom

Honors Scholar Theses

Poor air quality at schools may negatively impact students’ academic performance.1 2 3 In this study we look at the relationship between ambient, outdoor air quality and student socioeconomic status at United States public schools. We used free and reduced lunch eligibility, as part of the USDA’s National School Lunch Program, as an indicator of household income. We focus on nitrogen dioxide (NO2), ozone (O3), and particulate matter smaller than 2.5 microns (PM2.5). We used ambient pollutant concentration estimates at census block group resolution (Kim et al.) as the outdoor air pollution concentration at each school.4 We found a positive …

Fine Particulate Matter And Low Weight Births In Mexico City, Mexico, Kennedy Cohn

Honors Theses

Fine particulate matter (PM2.5) exposure has been associated with several negative health consequences, and recent studies suggest a potential relationship between PM2.5 exposure and adverse birth outcomes, including low birth weight (LBW). This thesis investigated a potential relationship between fine particulate matter concentration and low birth weight in Mexico City, Mexico between 2008-2016. Maternal pollution exposure was estimated at the city-wide level by averaging PM2.5 measurements from various monitoring stations. Birth weight was collected from the SINAC database. Logistic regression models were run for different temporal scales (by trimester, and 10-month periods); however, there were no significant relationships found between …

Environmental Law And Air Pollution In U.A.E. - Prof. Maged Rageb El-Helw, Prof. Majed Ragheb Ei-Helw

UAEU Law Journal

The serious impact of air pollution is of great concern to both citi­zens and authorities of all communities in the world. Every bod y hopes to breathe clean air, and every government wishes to keep its country as environmentally pure as possible, free from any kind of pollution , with a heal thy clear atmosphere . However, industrial processes, power generation, motor vehicles, burning of wastes and other sources of pollution tend to pollute the air to which the general population is exposed in almost all countries. This brief study is concerned with air pollution in the United Arab Emirates …

Monitoring Air Pollution Variability During Disasters, Earthea Nance

Faculty Publications

National environmental regulations lack short-term standards for variability in fine particulate matter (PM2.5); they depend solely on concentration-based standards. Twenty-five years of research has linked short-term PM2.5, that is, increases of at least 10 μg/m3 that can occur in-between regulatory readings, to increased mortality. Even as new technologies have emerged that could readily monitor short-term PM2.5, such as real-time monitoring and mobile monitoring, their primary application has been for research, not for air quality management. The Gulf oil spill offers a strategic setting in which regulatory monitoring, computer modeling, and stationary monitoring could be directly compared to mobile monitoring. Mobile …

Mentoring Through Moss: Measuring Air Pollution With High School Youth In The Duwamish Valley, Nichole Vargas

WWU Honors College Senior Projects

This report is a reflection on my participation in the Duwamish Valley Moss and Air Quality Study. In this internship experience, I am mentoring South Seattle high schoolers participating in the Duwamish Valley Youth Corps to collect, prepare, and analyze moss samples from trees in the Duwamish Valley. This project is in collaboration with Seattle community organizations such as the Duwamish River Cleanup Coalition, Dirt Corps, El Centro de La Raza, the South Park Area Redevelopment Committee; and Just Health Action. This is the second year that this study has been done. Last year, the study found hotspots of heavy …

Effects Of Actual And Perceived Air Pollution On U.S. Twitter Sentiment, George R. Garcia Iii

Undergraduate Honors Theses

Objective

This study examines the associations between actual and perceived air pollution (PM_2.5, AQI, and ground visibility), weather information, and expressed sentiment via US Twitter. Heterogeneity in the associations across date and county characteristics are also explored.

Methods

A sentiment index was constructed using 27,827,828 geotagged U.S. tweets posted between May 31 and November 30, 2015. Associations between AQI category changes and the sentiment index were estimated using multi-cutoff regression discontinuity models. Associations between same-day and lagged PM_2.5, ground visibility, and the sentiment index were estimated using weighted linear regression models. Models include weather variables and …

Novel Phenolic Deep Eutectic Solvents For Desulfurisation Of Petrodiesel, Idrees Bakr Qader, Jalil H. Kareem, Hani K. Ismail, Hawbash K. Mahmood

Karbala International Journal of Modern Science

In this work, a novel production of “deep eutectic solvents (DESs)” has been utilised for the elimination of sulfur composition, particularly from crude oil by liquid-liquid extraction. Herein, we present the first demonstration of the use of novel DESs formed by phenol, catechol, resorcinol and o-cresol as “hydrogen bond donors (HBDs)” with trimethyl hydroxyammonium chloride (ChCl) as the hydrogen bond acceptor to affect the efficient separation of organosulfur compounds from diesel. These DES electrolytes have been applied for the sulfur extraction from Iraqi real diesel fuel as determined using X-ray florescence sulfur measurements. The optimisation condition factors in this research …

Association Between Air Pollution And Incidence Of Dementia: A Systematic Review And Meta-Analysis Of Cohort Studies, Ehsan Abolhasani

Electronic Thesis and Dissertation Repository

Objective. To estimate the risk of dementia in association with exposure to air pollutants.

Methods. Six databases were searched. Cohort studies that reported the hazard ratio (HR) of dementia in association with exposure to air pollutants in adults > 40y were included. For all meta-analyses, the random-effects model was used.

Results. A total of 16 and 13 studies were included in the systematic review and the meta-analysis, respectively. Risk of dementia increased by 4% per 1μg/m³ increase in fine particulate matter level (HR, 1.04; 95%CI, [1.02, 1.06]), which was statistically significant. The risk of dementia increased by 3% per 10μg/m …

Ambient Air Quality And The Risk For Chronic Obstructive Pulmonary Disease Among Metro Manila Development Authority Traffic Enforcers In Metro Manila: An Exploratory Study, Xerxes Seposo, Audrey Lynn A. Arcilla, Jose Guillermo N. De Guzman Iii, Enrico Miguel S. Dizon, Andrea Nova R. Figuracion, Christina Micaela M. Morales, Pauleenaa Katriona A. Tugonon, Geminn Louis C. Apostol

Ateneo School of Medicine and Public Health Publications

Background

Air pollution and poor ambient air quality are significantly related to multiple health risks. One associated disease is chronic obstructive pulmonary disease (COPD), a preventable disease with several contributing factors and one of the leading causes of morbidity/mortality locally and globally. A potentially high-risk population are traffic enforcers who are constantly exposed to air pollution. In the Philippines, the MMDA has the widest coverage in traffic management. The study determined the risk of COPD among Metro Manila Development Authority (MMDA) traffic enforcers in relation to ambient air quality level, as well as identified other factors that increase the risk …

Transit-Oriented Development: The Quest For Sustainable Cities In The Age Of The Automobile, Franklyn P. Salimbene, William P. Wiggins

William & Mary Environmental Law and Policy Review

During the early and mid-twentieth century the automobile captured the imagination of the American public. Superhighways, which were the vision, became the reality with the promise of speedy and safe travel. During this visioning, little attention was given to the impacts the highway system would have on urban America. Of course, by the end of the century the impacts were quite clear and distressing. Traffic congestion and air pollution became, and now are, among the most challenging aspects of life in American cities. In contemplating measures to alleviate the negative effects of these twin challenges, federal, state, and local agencies, …

Maternal And Newborn Health Risks Of Climate Change: A Call For Awareness And Global Action, Nathalie Roos, Sari Kovats, Shakoor Hajat, Veronique Filippi, Matthew Chersich, Stanley Luchters, Fiona Scorgie, Britt Nakstad, Olof Stephansson, Chamnha Consortium

Population Health, East Africa

Climate change represents one of the largest global health threats of the 21st century with immediate and long‐term consequences for the most vulnerable populations, especially in the poorest countries with the least capacity to adapt to climate change. Pregnant women and newborns are increasingly being recognized as vulnerable populations in the context of climate change. The effects can be direct or indirect through heat stress, extreme weather events and air pollution, potentially impacting both the immediate and long‐term health of pregnant women and newborns through a broad range of mechanisms. In 2008, the World Health Organization passed a resolution during …

Corneal Disease And Air Pollution Levels In Detroit: Preliminary Results And Future Directions​, Sachin Ketkar, Matthew Silbergleit, Vaama Patel

Medical Student Research Symposium

Purpose: To determine if Detroit zip codes with elevated air pollution levels demonstrate increased incidence of corneal disease.

Background: 82 million people in the United States live in counties with air quality concentrations above the National Ambient Air Quality Standards. Air pollution’s detrimental effects on an individual’s health has been well documented. Much of this research has focused on the pulmonary system. The eye, another mucous membrane exposed to the external environment, has been largely ignored

Methods: After an initial literature review of similar studies, 14 corneal diseases and 5 pollutants were selected to be evaluated. Kresge Eye Institute’s patient …