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Articles 241 - 270 of 6879
Full-Text Articles in Physical Sciences and Mathematics
Quantifying Potential Marine Debris Sources And Potential Threats To Penguins On The West Antarctic Peninsula, Katherine L. Gallagher, Megan A. Cimino, Michael S. Dinniman, Heather J. Lynch
Quantifying Potential Marine Debris Sources And Potential Threats To Penguins On The West Antarctic Peninsula, Katherine L. Gallagher, Megan A. Cimino, Michael S. Dinniman, Heather J. Lynch
OES Faculty Publications
Marine pollution is becoming ubiquitous in the environment. Observations of pollution on beaches, in the coastal ocean, and in organisms in the Antarctic are becoming distressingly common. Increasing human activity, growing tourism, and an expanding krill fishing industry along the West Antarctic Peninsula all represent potential sources of plastic pollution and other debris (collectively referred to as debris) to the region. However, the sources of these pollutants from point (pollutants released from discrete sources) versus non-point (pollutants from a large area rather than a specific source) sources are poorly understood. We used buoyant simulated particles released in a high-resolution physical …
Eco-Cultural Restoration Of Mouralherwaqh: Site Description And Invasive Species Treatment Plan In King Salmon, California, Natalie Bridget Calderon, Myion Rickey, King Baptista, Owen Bardsley, Jillian Snowhook
Eco-Cultural Restoration Of Mouralherwaqh: Site Description And Invasive Species Treatment Plan In King Salmon, California, Natalie Bridget Calderon, Myion Rickey, King Baptista, Owen Bardsley, Jillian Snowhook
Cal Poly Humboldt Capstone Honor Roll
In July of 2022, the Wiyot Tribe bought back one of their first pieces of ancestral forest within the Mouralherwaqh "more-RAH-share-wahg" village area (Wiyot, 2022). Before this repatriation, the Tribe owned less than 1% of their ancestral lands; after, the Tribe’s land holdings increased by 10% (Reclaiming Mouralherwaqh | Humboldt NOW | Cal Poly Humboldt, 2022). Mouralherwaqh is a 46 acre coastal site located near present day King Salmon, California and has high ecological and culturally significant values (Wiyot, 2022). Prior to the change of ownership, Mouralherwaqh was privately-owned and in 2014 underwent a clear-cut timber harvest within eight-acres of …
Assessing Stormwater Management Pond Water Quality, Function, And The Potential Biotic Effects To Receiving Waters, Mitchell Elstone
Assessing Stormwater Management Pond Water Quality, Function, And The Potential Biotic Effects To Receiving Waters, Mitchell Elstone
Theses and Dissertations (Comprehensive)
The use of stormwater management ponds (SWMPs) has been increasing over the past five decades. However, an in-depth understanding of the daily performance of SWMPs and functionality during cold periods is limited. This is in part because mandated monitoring is relatively infrequent, and the assumption that SWMPs are inactive between storm events and during the winter. The goals of this research were to better understand daily stormwater (SW) characteristics, the performance of SWMPs based on current forms of evaluation and assess the potential for SWMP effluent to impact downstream biota. Influent and effluent samples from two SWMPs were collected daily …
Policy Recommendations For Tire Additive 6ppd And Its Derivative 6ppd-Q, Ashley E. King
Policy Recommendations For Tire Additive 6ppd And Its Derivative 6ppd-Q, Ashley E. King
Dissertations, Theses, and Masters Projects
Around 3.1 billion tires are produced around the world annually1. The antioxidant additive, 6PPD (i.e., N-(1,3-dimethylbutyl)-N’-phenyl-p-phenylenediamine) is widely employed in passenger and commercial vehicle tires at 0.4-2% by mass to impede tire degradation2. Antioxidants are intended to migrate to tire surfaces and form protective films to prevent rubber oxidation. 6PPD is designed to react with oxidant species like ozone, intentionally forming chemical transformation products that can then escape from the tire and into the environment. 6PPD-Q (i.e., 2-anilino-5-[(4-methylpentan-2-yl)amino]cyclohexa-2,5-diene-1,4-dione) is one such transformation product.
After release and disbursement in the environment, 6PPD-Q is bioavailable to aquatic animals and mammals and acute …
Mapping With The Land: Co-Developing A Cumulative Impact Monitoring And Land Stewardship Framework With Sambaa K’E First Nation, Northwest Territories, Canada, Michael S. Mcphee
Mapping With The Land: Co-Developing A Cumulative Impact Monitoring And Land Stewardship Framework With Sambaa K’E First Nation, Northwest Territories, Canada, Michael S. Mcphee
Theses and Dissertations (Comprehensive)
Across the Northwest Territories (NWT), Canada, Indigenous populations are striving to achieve effective environmental protection, whilst navigating complex methods, policies, and research relationships within co-management contexts. This thesis seeks to identify how differing cultural systems, environmental change, and fractured partnerships may be unified to align with the needs of the Sambaa K’e First Nation (SKFN), a remote Dehcho Dene community. Indigenous methodologies guided co-development of research questions with SKFN leadership which yielded objectives a) develop a GIS-based method to manage, organize and mobilize cultural and environmental data; b) develop a new stewardship monitoring procedure so that users can apply the …
Reducing Short-Chain Pfas Levels In California Water Supplies, Manu Prabandham
Reducing Short-Chain Pfas Levels In California Water Supplies, Manu Prabandham
Pomona Senior Theses
This thesis proposes twelve specific policies based on precedents set by prior regulation of persistent organic pollutants (such as PCBs), the costs and benefits of short-chain PFAS, technologies available to remove and destroy short-chain PFAS, and the roles and limitations of California’s regulatory institutions. The twelve policies are chosen to be politically and financially feasible, effective at removing short-chain PFAS from water supplies, and equitable towards lower-income and minority Californians, who suffer the most from the consequences of PFAS and other environmental pollutants. The new definitions, education campaigns, studies, taxes, bans, standards, testing, and filtration systems proposed are intended to …
Predictive Power Of Wastewater For Nowcasting Infectious Disease Transmission: A Retrospective Case Study Of Five Sewershed Areas In Louisville, Kentucky, Fayette Klaassen, Rochelle H. Holm, Ted Smith, Ted Cohen, Aruni Bhatnagar, Nicolas A. Menzies
Predictive Power Of Wastewater For Nowcasting Infectious Disease Transmission: A Retrospective Case Study Of Five Sewershed Areas In Louisville, Kentucky, Fayette Klaassen, Rochelle H. Holm, Ted Smith, Ted Cohen, Aruni Bhatnagar, Nicolas A. Menzies
Faculty and Staff Scholarship
Background: Epidemiological nowcasting traditionally relies on count surveillance data. The availability and quality of such count data may vary over time, limiting representation of true infections. Wastewater data correlates with traditional surveillance data and may provide additional value for nowcasting disease trends. Methods: We obtained SARS-CoV-2 case, death, wastewater, and serosurvey data for Jefferson County, Kentucky (USA), between August 2020 and March 2021, and parameterized an existing nowcasting model using combinations of these data. We assessed the predictive performance and variability at the sewershed level and compared the effects of adding or replacing wastewater data to case and death reports. …
Maurer Environmental Law Expert Is Lead Author On Science Insights Policy Forum Article, James Owsley Boyd
Maurer Environmental Law Expert Is Lead Author On Science Insights Policy Forum Article, James Owsley Boyd
Keep Up With the Latest News from the Law School (blog)
Environmental champions and conservationists will mark the 50th anniversary of the Endangered Species Act later this month. That is the law requiring federal agencies to use all methods necessary to prevent extinctions and ensure that federal actions not jeopardize the continued existence of species on the brink of disappearing from the face of the Earth.
In the leadup to the December 27th anniversary, several publications have begun examining the Act’s history and impact over five decades.
Science, the world’s third-most influential scholarly journal based on Google Scholar citations, invited experts from around the country to look ahead as well …
Reducing Food Scarcity: The Benefits Of Urban Farming, S.A. Claudell, Emilio Mejia
Reducing Food Scarcity: The Benefits Of Urban Farming, S.A. Claudell, Emilio Mejia
Journal of Nonprofit Innovation
Urban farming can enhance the lives of communities and help reduce food scarcity. This paper presents a conceptual prototype of an efficient urban farming community that can be scaled for a single apartment building or an entire community across all global geoeconomics regions, including densely populated cities and rural, developing towns and communities. When deployed in coordination with smart crop choices, local farm support, and efficient transportation then the result isn’t just sustainability, but also increasing fresh produce accessibility, optimizing nutritional value, eliminating the use of ‘forever chemicals’, reducing transportation costs, and fostering global environmental benefits.
Imagine Doris, who is …
Community Resilience And Creating Capacities For Risk Reduction In First Nations Communities, Case Study In Minegoziibe Anishinabe (Pine Creek First Nation), Brittany S. Lavallee
Community Resilience And Creating Capacities For Risk Reduction In First Nations Communities, Case Study In Minegoziibe Anishinabe (Pine Creek First Nation), Brittany S. Lavallee
Capstone Collection
The colonization of Indigenous peoples in Canada has serious consequences on First Nations, including forced removal and displacement from their ancestral lands, environmental degradation, declining resources and capacities, and human rights violations. First Nations communities are currently facing the amplified effects of human-driven climate change. Sustainability of the environment is not just a concept, but a practiced way of life, that recognizes the interdependence of all living things. This deep respect for Aki (earth) is at the foundation of First Nations cultures and continues to guide their actions to insure better futures for Seven Generations. The community of Minegoziibe Anishinabe …
Final 2023 Residential Metals Abatement Program (Rmap) Brw/Belgrade Borrow Submittal, Pioneer Technical Services, Inc.
Final 2023 Residential Metals Abatement Program (Rmap) Brw/Belgrade Borrow Submittal, Pioneer Technical Services, Inc.
Silver Bow Creek/Butte Area Superfund Site
No abstract provided.
Interactive Effects Of Sublethal Concentrations Of Fracking Biocides And Abandoned Mine Drainage On Amphipod Behavior, Kelly Lenhart
Interactive Effects Of Sublethal Concentrations Of Fracking Biocides And Abandoned Mine Drainage On Amphipod Behavior, Kelly Lenhart
Electronic Theses and Dissertations
This thesis examined the sublethal effects of three pollutants, namely glutaraldehyde, 4,4-dimethyloxazolidine (DMO), and abandoned mine drainage (AMD), on amphipods. The primary objective was to investigate their combined effects on amphipods. The three pollutants, despite having the potential to combine in the environment, have not been studied to determine their potential for detrimental interactive effects which could result in unexpected environmental damage.
The research employed a series of experimental setups involving controlled exposure of amphipods to varying, putatively sublethal, concentrations of the chemicals of interest. Subsequently, effects were assessed via both behavioral and feeding assessments. To facilitate this analysis, novel …
Solar-Powered Microgrids In Northern California: An Opportunity For Resilience, Marina Riddle
Solar-Powered Microgrids In Northern California: An Opportunity For Resilience, Marina Riddle
Master's Projects and Capstones
Planned and unplanned power outages have been increasing in frequency and duration, negatively impacting all public sectors, and threatening public safety. These outages are deadly to those who rely on medical devices. As climate change-fueled extreme weather events (wildfires, earthquakes, storms, etc.) also increase in frequency, our electrical grid must be prepared to bounce back. Microgrids provide necessary redundancy and reliability. Through a novel GIS suitability analysis, based on solar radiation, land use type, local energy demand, distance to transmission lines, distance to roads, and slope, optimal locations for solar-powered microgrids throughout Northern California were determined. The counties of Fresno, …
Draft Final 2023 Residential Metals Abatement Program (Rmap) Brw/Belgrade Borrow Submittal, Pioneer Technical Services, Inc.
Draft Final 2023 Residential Metals Abatement Program (Rmap) Brw/Belgrade Borrow Submittal, Pioneer Technical Services, Inc.
Silver Bow Creek/Butte Area Superfund Site
No abstract provided.
Final 2023 Residential Metals Abatement Program (Rmap) Whitehall Borrow Submittal, Pioneer Technical Services, Inc.
Final 2023 Residential Metals Abatement Program (Rmap) Whitehall Borrow Submittal, Pioneer Technical Services, Inc.
Silver Bow Creek/Butte Area Superfund Site
No abstract provided.
Draft Final 2023 Butte Priority Soils Operable Unit Type B Borrow Material Submittal #1, Pioneer Technical Services, Inc.
Draft Final 2023 Butte Priority Soils Operable Unit Type B Borrow Material Submittal #1, Pioneer Technical Services, Inc.
Silver Bow Creek/Butte Area Superfund Site
No abstract provided.
Final 2023 Residential Metals Abatement Program (Rmap) Whitehall Borrow Submittal, Pioneer Technical Services, Inc.
Final 2023 Residential Metals Abatement Program (Rmap) Whitehall Borrow Submittal, Pioneer Technical Services, Inc.
Silver Bow Creek/Butte Area Superfund Site
No abstract provided.
Draft Final 2023 Butte Priority Soils Operable Unit Type B Borrow Material Submittal #1, Pioneer Technical Services, Inc.
Draft Final 2023 Butte Priority Soils Operable Unit Type B Borrow Material Submittal #1, Pioneer Technical Services, Inc.
Silver Bow Creek/Butte Area Superfund Site
No abstract provided.
Butte Priority Soils Operable Unit - Final Solid Media Management Program Plan, Pioneer Technical Services, Inc.
Butte Priority Soils Operable Unit - Final Solid Media Management Program Plan, Pioneer Technical Services, Inc.
Silver Bow Creek/Butte Area Superfund Site
No abstract provided.
Silver Bow Creek Butte Area Npl Site 3rd Quarter 2023 Butte Priority Soils Operable Unit Interim Site-Wide Surface Water Monitoring Data Report. Consent Decree- Civil Action No. Cv 89- 039-Bu-She, Josh Bryson
Silver Bow Creek/Butte Area Superfund Site
No abstract provided.
The Tidal Prism, Viable Eelgrass Habitat, And The Effects Of Sea Level Rise In Morro Bay, Kaden A. Caliendo
The Tidal Prism, Viable Eelgrass Habitat, And The Effects Of Sea Level Rise In Morro Bay, Kaden A. Caliendo
Master's Theses
The tidal prism, or the volume of water exchanged from the sea to an estuary from mean low to mean high tide, influences system hydrodynamics and ecological functioning. Since 1884, the tidal prism in Morro Bay, California has been estimated to be decreasing over time due to sedimentation from upstream practices. What is the current tidal prism in Morro Bay and how will that change with sea level rise? How will eelgrass respond to rising sea levels?
For this study, inexpensive tidal gauges were deployed at four locations in Morro Bay from March to August 2023 to measure spatially varying …
The Impact Of The Covid-19 Pandemic Response On Food Safety Violations Observed In Southern Nevada Food Establishments, Samantha Morales
The Impact Of The Covid-19 Pandemic Response On Food Safety Violations Observed In Southern Nevada Food Establishments, Samantha Morales
UNLV Theses, Dissertations, Professional Papers, and Capstones
Food poisoning is a common term used to describe what is actually foodborne illness. Despite the fact these illnesses can become deadly, foodborne illnesses are endemic and common in the United States. Nonetheless, they are completely preventable simply by following proper food safety procedures. The Food and Drug Administration identified the most common foodborne pathogens responsible for most foodborne infections, as well as the five risk factor categories to target in order to decrease the risk of cases and outbreaks.
To ensure foodborne outbreaks and cases are prevented, health authorities are tasked with conducting routine inspections on permitted food establishments. …
Gravel Conveyance System: An Evaluation On E. Coli Removal Capabilities, Madison Grace
Gravel Conveyance System: An Evaluation On E. Coli Removal Capabilities, Madison Grace
<strong> Theses and Dissertations </strong>
In many rural, low-income communities such as the Black Belt of Alabama, there is a lack of wastewater infrastructure and solutions leaving homeowners non-compliant to state and federal law and with potential health risks on their property. New regulations have allowed for onsite, surface discharge for single family homes that are not connected to a centralized sewer or large flow development. These new regulations also contain strict disinfection criteria for the treated wastewater that will be discharged. A low-cost and low-maintenance treatment system that provides adequate disinfection is necessary to allow homeowners to take advantage of the new opportunity for …
Development, Voice, And Vulnerability: A Rhetorical Analysis Of The Policy-Making Discourse Regarding The Paris Agreement As An Organizational Response To Climate Change, David Almanza-Canas
Development, Voice, And Vulnerability: A Rhetorical Analysis Of The Policy-Making Discourse Regarding The Paris Agreement As An Organizational Response To Climate Change, David Almanza-Canas
UNLV Theses, Dissertations, Professional Papers, and Capstones
On December 12, 2015, the Paris Agreement was officially ratified by 196 sovereign entities. This treaty represents a global call to action to ameliorate the impact of human activities on our environment, and it creates a means of cooperation through financial support and transparent industrial practices with the goal of promoting accountability across the world. This treaty and the discourse surrounding it present fertile ground for the academic understanding of persuasive practices in policy-making. By examining the rhetorical implications of the Paris Agreement as a global policy, scholars can gain new insight about the communities represented in the conversation as …
An Evaluation Of Lead Concentration In Commercially Available Tiles, Daidre N. Gamboa
An Evaluation Of Lead Concentration In Commercially Available Tiles, Daidre N. Gamboa
UNLV Theses, Dissertations, Professional Papers, and Capstones
Workers in the manufacturing and construction industries are at risk of lead exposure in projects that involve removal or installation of tiles, and other individuals exposed to lead, including children may also be at risk. The concern with lead in tiles is thought to be related to the glazing process or the country where the tile was produced. Multiple regulations are in place in the U.S. to protect people from lead exposure, including through surface coatings or painted surfaces. But these regulations do not cover glazed tiles. This study examined whether there are differences in lead concentration in (1) tiles …
Beyond Corporate Greenwashing: Discourse Of A 'Just' Electric Energy Transition Materialized At The Thacker Pass Lithium Mine, Laekyn Kelley
Beyond Corporate Greenwashing: Discourse Of A 'Just' Electric Energy Transition Materialized At The Thacker Pass Lithium Mine, Laekyn Kelley
UNLV Theses, Dissertations, Professional Papers, and Capstones
Thacker Pass in Northern Nevada is a rich desert ecosystem with spiritual significance to local Indigenous peoples, and it is also the site for what will be, for now, the United States’ largest open-pit lithium mine. Lithium is one mineral constituent of electric batteries which are essential to current U.S. electric energy transition policy, a transition which policymakers and other public groups have called on to be done in a way which is just. However, what exactly a just electric energy transition looks like in places like Thacker Pass is under continued negotiation in theoretical and practical senses. Existing research …
Draft Final Bpsou 2023 Uncontrolled Surface Flow Area Soil Characterization Quality Assurance Project Plan (Qapp), Woodard & Curran
Draft Final Bpsou 2023 Uncontrolled Surface Flow Area Soil Characterization Quality Assurance Project Plan (Qapp), Woodard & Curran
Silver Bow Creek/Butte Area Superfund Site
No abstract provided.
Butte Priority Soils Operable Unit Uncontrolled Surface Flow Areas Draft Remedial Design Work Plan (Rdwp), Woodard & Curran
Butte Priority Soils Operable Unit Uncontrolled Surface Flow Areas Draft Remedial Design Work Plan (Rdwp), Woodard & Curran
Silver Bow Creek/Butte Area Superfund Site
No abstract provided.
Draft Uncontrolled Surface Flow Areas Pre-Design Investigation Work Plan, Woodard & Curran
Draft Uncontrolled Surface Flow Areas Pre-Design Investigation Work Plan, Woodard & Curran
Silver Bow Creek/Butte Area Superfund Site
No abstract provided.
Draft Final Butte Treatment Lagoons (Btl) Groundwater Treatment System Routine Operations, Maintenance, And Monitoring (Om&M) Plan, Pioneer Technical Services, Inc.
Draft Final Butte Treatment Lagoons (Btl) Groundwater Treatment System Routine Operations, Maintenance, And Monitoring (Om&M) Plan, Pioneer Technical Services, Inc.
Silver Bow Creek/Butte Area Superfund Site
No abstract provided.