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Food deserts and food insecurity can negatively impact the health of communities. Urban farming, specifically with aeroponics systems, could be a possible solution in alleviating food insecurity in food deserts. In order to test and understand what type of system and products work best in such areas, this thesis looks

Food deserts and food insecurity can negatively impact the health of communities. Urban farming, specifically with aeroponics systems, could be a possible solution in alleviating food insecurity in food deserts. In order to test and understand what type of system and products work best in such areas, this thesis looks at urban farming from farms' and consumers' perspective using qualitative and quantitative data. The qualitative data was collected from current businesses that are using urban farming techniques within the Phoenix valley. Based on the quantitative research, the consumers studied seemed willing to eat leafy greens and vegetables given that they are affordable, fresh, and they understand how to cook them. Further research could be a more focused study on residents of specific neighborhoods that are classified as food deserts. Another aspect that could be researched further is the other factors affecting the health of residents located in food deserts other than the availability of food. This could include, but is not limited to, lack of nutritional education, insufficient cooking materials, and personal food preferences.
ContributorsRaymond, Yann Gaby Jean (Co-author) / Curtiss, Mary (Co-author) / Grebitus, Carola (Thesis director) / Schmitz, Troy (Committee member) / School of Sustainability (Contributor) / Department of Management and Entrepreneurship (Contributor) / Barrett, The Honors College (Contributor)
Created2018-05
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This honors thesis examines community gardens from throughout Phoenix, Arizona. It shows that community gardens have the potential to both support and hinder sustainability efforts, encourage community development, and increase food access. By measuring the temperature at various community gardens throughout Phoenix, AZ, community gardens were shown to minimize local

This honors thesis examines community gardens from throughout Phoenix, Arizona. It shows that community gardens have the potential to both support and hinder sustainability efforts, encourage community development, and increase food access. By measuring the temperature at various community gardens throughout Phoenix, AZ, community gardens were shown to minimize local effects of the urban heat island. Because they use water to survive and Phoenix, AZ is in a desert, this contributes to a depleting water supply. Interviews of gardeners from community gardens throughout Phoenix depicted that community gardens can provide sites for community development as well as promoting food access.
ContributorsBowersox, Diane Kathleen (Author) / Haglund, LaDawn (Thesis director) / Lyon, Mich (Committee member) / Barrett, The Honors College (Contributor) / WPC Graduate Programs (Contributor) / School of Accountancy (Contributor) / School of Politics and Global Studies (Contributor)
Created2014-05
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Abstract
Local organic gardening once experienced great popularity with Americans. At one time promoted and prominent, local gardens became obscure, old-fashioned, and outmoded. However, in the last few decades, for various reasons, local organic gardening has made some progress. This study seeks to assist high-density, low-income, inner-city Americans, who often do

Abstract
Local organic gardening once experienced great popularity with Americans. At one time promoted and prominent, local gardens became obscure, old-fashioned, and outmoded. However, in the last few decades, for various reasons, local organic gardening has made some progress. This study seeks to assist high-density, low-income, inner-city Americans, who often do not have have easy or affordable access to fresh whole food by creating sustainable, resilient, local, urban gardens. However, this effort does not attempt to address the needs of entire populations of census tracts, rather one suburban home, one small apartment complex, or one small community garden. O​ ne solution to the problems associated with food insecurity is to put the creativity and responsibility into the hands of those who need the food, allow them to work within a self-sustaining garden, and decide what to do with any excess food. W​ ith the help of Greg Peterson, Phoenix’s own urban farmer, this project set out to create a system using Phoenix’s limited amount of rainfall to create a aquaponic gardening system which will be used in micro-communities such as multi-family complexes, middle schools, or high schools, in order to help grow food for these communities and alleviate some of the difficulties of finding fresh food in the desert.
ContributorsField, John William (Author) / Hagen, Bjoern (Thesis director) / Kelley, Jason (Committee member) / School of Public Affairs (Contributor) / School of Geographical Sciences and Urban Planning (Contributor) / School of Sustainability (Contributor) / Barrett, The Honors College (Contributor)
Created2018-05
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Description
According to the CDC, over 1/3 of Americans are considered obese (CDC, 2015). Being overweight makes individuals at high risk for developing countless diseases that lead to premature death. Most of these diseases are preventable with healthy weight attained by nutritious diet and regular exercise. People living in food deserts

According to the CDC, over 1/3 of Americans are considered obese (CDC, 2015). Being overweight makes individuals at high risk for developing countless diseases that lead to premature death. Most of these diseases are preventable with healthy weight attained by nutritious diet and regular exercise. People living in food deserts such as Harmon have limited access to healthy food options. Access to supermarkets and nutritious foods is connected to healthy body weight and decreased obesity while increased access to convenience stores is connected to increased obesity rates (Beaulac et al., 2009). A survey was formulated for residents of the Harmon community to better understand their food preferences, limitations, and needs. The results gathered from the survey indicate that people in Harmon have a desire to eat healthfully, but there are barriers such as access and price of food that limit their ability to make smart food choices. The survey results also suggest that there is a potential lack of understanding regarding nutrition and what healthful eating actually means.
ContributorsGibson, Lindsay Ilana (Author) / Sanborn, Heidi (Thesis director) / Calvin, Samantha (Committee member) / School of Human Evolution and Social Change (Contributor) / School of Life Sciences (Contributor) / Barrett, The Honors College (Contributor)
Created2016-05
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Description
Currently conventional Subtitle D landfills are the primary means of disposing of our waste in the United States. While this method of waste disposal aims at protecting the environment, it does so through the use of liners and caps that effectively freeze the breakdown of waste. Because this method can

Currently conventional Subtitle D landfills are the primary means of disposing of our waste in the United States. While this method of waste disposal aims at protecting the environment, it does so through the use of liners and caps that effectively freeze the breakdown of waste. Because this method can keep landfills active, and thus a potential groundwater threat for over a hundred years, I take an in depth look at the ability of bioreactor landfills to quickly stabilize waste. In the thesis I detail the current state of bioreactor landfill technologies, assessing the pros and cons of anaerobic and aerobic bioreactor technologies. Finally, with an industrial perspective, I conclude that moving on to bioreactor landfills as an alternative isn't as simple as it may first appear, and that it is a contextually specific solution that must be further refined before replacing current landfills.
ContributorsWhitten, George Avery (Author) / Kavazanjian, Edward (Thesis director) / Allenby, Braden (Committee member) / Houston, Sandra (Committee member) / Civil, Environmental and Sustainable Engineering Programs (Contributor) / Barrett, The Honors College (Contributor)
Created2013-05
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Description

Food insecurity is a major issue within the United States. Millions of households experience limited food availability, especially in regions deemed food deserts. Food deserts are geographical regions across the United States that possess limited access to grocery stores or supermarkets, and thus limited access to healthy food options. Individuals

Food insecurity is a major issue within the United States. Millions of households experience limited food availability, especially in regions deemed food deserts. Food deserts are geographical regions across the United States that possess limited access to grocery stores or supermarkets, and thus limited access to healthy food options. Individuals living in food deserts are at an increased risk of developing a mental illness, including depression, bipolar disorder, Alzheimer’s Disease, and Attentional Deficit Hyperactivity Disorder (ADHD). Mental health is often associated with one’s environment or genetic susceptibility, and treatments are often focused on psychotherapeutic methods and prescription medication. In investigating food deserts and diets characteristic of food deserts, one can begin to make connections between food and mental health. Dietary patterns that exhibit greater concentrations of fats and sugars are associated with many of the symptoms of common mood disorders and are significant in producing biological indicators, like inflammation, which is identified in various neurodegenerative disorders. Brain foods like vitamins and omega-3 fatty acids among others, provide a unique lens into the ways the food and the brain interact, specifically through a concept termed the gut-brain axis. Research surrounding these connections, especially in a newer field called nutritional psychiatry, inform the ways in which researchers, scholars, and medical professionals understand mental health and food insecurity. These connections may also prompt future research in the field focused on food-based treatments and the use of food as a preventative form of medicine.

ContributorsMelick, Alexandria M (Author) / Bump, Nathaniel (Thesis director) / Jackson, Jonna (Committee member) / School of Life Sciences (Contributor) / Barrett, The Honors College (Contributor)
Created2021-05
Description

Food insecure populations suffer from the ability to access affordable and nutritious foods as a result of financial and transportation needs. Often these populations are concentrated in areas referenced as food deserts. A food desert is an area that does not have a supermarket or large grocery store within a

Food insecure populations suffer from the ability to access affordable and nutritious foods as a result of financial and transportation needs. Often these populations are concentrated in areas referenced as food deserts. A food desert is an area that does not have a supermarket or large grocery store within a mile and often is saturated with small non-traditional food stores and fast- food establishments. In this study, 21 food deserts along Grand Avenue in Downtown Phoenix were analyzed to better understand their access to food, population statistics and barriers to being food secure. The research question analyzed is the impact food insecurity has on communities in Phoenix, Arizona. The findings are presented in the form of a research paper, as well as 15 black and white film photographs accompanied by descriptions. There is primary qualitative data presented through photographs and observations, as well as secondary quantitative data analyzed from Census data. The food deserts studied consist of communities that are low-income and majority minority with little to no access to nutritious food in their area. The economics of food insecurity and grocery stores, racial discrimination, access to transportation, impacts on health and education and the sustainability of food deserts are all aspects of food insecurity discussed in the research. Possible solutions such as community gardens and subsidized grocery stores are also presented. The study revealed that food insecurity has several negative impacts on the affected populations and communities and disproportionately impacts low-income and minority communities.

ContributorsHollinshead, Samantha Nadine (Author) / Liao, Chuan Liao (Thesis director) / Bavousett, Brigitte Bavousett (Committee member) / School of Sustainability (Contributor) / School of Social Transformation (Contributor) / Barrett, The Honors College (Contributor)
Created2021-05
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Description
Environmentally harmful byproducts from solid waste’s decomposition, including methane (CH4) emissions, are managed through standardized landfill engineering and gas-capture mechanisms. Yet only a limited number of studies have analyzed the development and composition of Bacteria and Archaea involved in CH4 production from landfills. The objectives of this research were to

Environmentally harmful byproducts from solid waste’s decomposition, including methane (CH4) emissions, are managed through standardized landfill engineering and gas-capture mechanisms. Yet only a limited number of studies have analyzed the development and composition of Bacteria and Archaea involved in CH4 production from landfills. The objectives of this research were to compare microbiomes and bioactivity from CH4-producing communities in contrasting spatial areas of arid landfills and to tests a new technology to biostimulate CH4 production (methanogenesis) from solid waste under dynamic environmental conditions controlled in the laboratory. My hypothesis was that the diversity and abundance of methanogenic Archaea in municipal solid waste (MSW), or its leachate, play an important role on CH4 production partially attributed to the group’s wide hydrogen (H2) consumption capabilities. I tested this hypothesis by conducting complementary field observations and laboratory experiments. I describe niches of methanogenic Archaea in MSW leachate across defined areas within a single landfill, while demonstrating functional H2-dependent activity. To alleviate limited H2 bioavailability encountered in-situ, I present biostimulant feasibility and proof-of-concepts studies through the amendment of zero valent metals (ZVMs). My results demonstrate that older-aged MSW was minimally biostimulated for greater CH4 production relative to a control when exposed to iron (Fe0) or manganese (Mn0), due to highly discernable traits of soluble carbon, nitrogen, and unidentified fluorophores found in water extracts between young and old aged, starting MSW. Acetate and inhibitory H2 partial pressures accumulated in microcosms containing old-aged MSW. In a final experiment, repeated amendments of ZVMs to MSW in a 600 day mesocosm experiment mediated significantly higher CH4 concentrations and yields during the first of three ZVM injections. Fe0 and Mn0 experimental treatments at mesocosm-scale also highlighted accelerated development of seemingly important, but elusive Archaea including Methanobacteriaceae, a methane-producing family that is found in diverse environments. Also, prokaryotic classes including Candidatus Bathyarchaeota, an uncultured group commonly found in carbon-rich ecosystems, and Clostridia; All three taxa I identified as highly predictive in the time-dependent progression of MSW decomposition. Altogether, my experiments demonstrate the importance of H2 bioavailability on CH4 production and the consistent development of Methanobacteriaceae in productive MSW microbiomes.
ContributorsReynolds, Mark Christian (Author) / Cadillo-Quiroz, Hinsby (Thesis advisor) / Krajmalnik-Brown, Rosa (Thesis advisor) / Wang, Xuan (Committee member) / Kavazanjian, Edward (Committee member) / Arizona State University (Publisher)
Created2022
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Zero-Valent Metals (ZVM) are highly reactive materials and have been proved to be effective in contaminant reduction in soils and groundwater remediation. In fact, zero-Valent Iron (ZVI) has proven to be very effective in removing, particularly chlorinated organics, heavy metals, and odorous sulfides. Addition of ZVI has also been proved

Zero-Valent Metals (ZVM) are highly reactive materials and have been proved to be effective in contaminant reduction in soils and groundwater remediation. In fact, zero-Valent Iron (ZVI) has proven to be very effective in removing, particularly chlorinated organics, heavy metals, and odorous sulfides. Addition of ZVI has also been proved in enhancing the methane gas generation in anaerobic digestion of activated sludge. However, no studies have been conducted regarding the effect of ZVM stimulation to Municipal Solid Waste (MSW) degradation. Therefore, a collaborative study was developed to manipulate microbial activity in the landfill bioreactors to favor methane production by adding ZVMs. This study focuses on evaluating the effects of added ZVM on the leachate generated from replicated lab scale landfill bioreactors. The specific objective was to investigate the effects of ZVMs addition on the organic and inorganic pollutants in leachate. The hypothesis here evaluated was that adding ZVM including ZVI and Zero Valent Manganese (ZVMn) will enhance the removal rates of the organic pollutants present in the leachate, likely by a putative higher rate of microbial metabolism. Test with six (4.23 gallons) bioreactors assembled with MSW collected from the Salt River Landfill and Southwest Regional Landfill showed that under 5 grams /liter of ZVI and 0.625 grams/liter of ZVMn additions, no significant difference was observed in the pH and temperature data of the leachate generated from these reactors. The conductivity data suggested the steady rise across all reactors over the period of time. The removal efficiency of sCOD was highest (27.112 mg/lit/day) for the reactors added with ZVMn at the end of 150 days for bottom layer, however the removal rate was highest (16.955 mg/lit/day) for ZVI after the end of 150 days of the middle layer. Similar trends in the results was observed in TC analysis. HPLC study indicated the dominance of the concentration of heptanoate and isovalerate were leachate generated from the bottom layer across all reactors. Heptanoate continued to dominate in the ZVMn added leachate even after middle layer injection. IC analysis concluded the chloride was dominant in the leachate generated from all the reactors and there was a steady increase in the chloride content over the period of time. Along with chloride, fluoride, bromide, nitrate, nitrite, phosphate and sulfate were also detected in considerable concentrations. In the summary, the addition of the zero valent metals has proved to be efficient in removal of the organics present in the leachate.
ContributorsPandit, Gandhar Abhay (Author) / Cadillo – Quiroz, Hinsby (Thesis advisor) / Olson, Larry (Thesis advisor) / Boyer, Treavor (Committee member) / Arizona State University (Publisher)
Created2019
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Food insecurity and hunger are strongly interconnected with poverty and are major concerns across the world. Poverty stems from many interconnected issues and creates what are known as Food Deserts. The challenge then becomes: How do we mitigate the effects of food deserts to achieve food security? This paper proposes

Food insecurity and hunger are strongly interconnected with poverty and are major concerns across the world. Poverty stems from many interconnected issues and creates what are known as Food Deserts. The challenge then becomes: How do we mitigate the effects of food deserts to achieve food security? This paper proposes a design and a potential solution to address this question of food insecurity with the modification of a traditional aquaponics system that can potentially deliver the same product at a lower cost. Stakeholder input was key to the product design and was captured through a set of carefully conducted interviews. An in-depth literature review also informed the redesign process, and a final, viable product was proposed. Thus far, the proposed aquaponics system has demonstrated to be a promising cost-effective, sustainable, solution that could provide a majority of the food needs for a family.

ContributorsGreathouse, Madelynne (Author) / Macia, Narciso (Thesis director) / Henderson, Mark (Committee member) / Briggs, Georgette (Committee member) / Barrett, The Honors College (Contributor) / Dean, W.P. Carey School of Business (Contributor) / School of Sustainability (Contributor) / Department of Finance (Contributor)
Created2022-05