Heavy Metal Contamination And Potential Ecological Risks In Surface Sediments Along Dar Es Salaam Harbour Channel,
2021
Department of Zoology and Wildlife Conservation, University of Dar es Salaam, Tanzania
Heavy Metal Contamination And Potential Ecological Risks In Surface Sediments Along Dar Es Salaam Harbour Channel, Benard Mwakisunga, Harishchandra B. Pratap, John F. Machiwa, Flora Stephano
Tanzania Journal of Science
Investigation of heavy metal contamination along Dar es Salaam harbour channel was carried out in order to determine their current concentrations, sources and potential ecological risks to benthic biota. Sampling was carried out from January to May 2019 and samples analysed using ICP-OES and C-H-N-S analyser. Analysis of heavy metal relationships showed that, Cu, Zn, Cr, As, Ni, Co, Fe, Cd had strong relationships with each other, while Pb only related to Zn. Principal component analysis partitioned metals into two groups; PC1: Ni, Cr, Fe, Co, As, Cu, Cd, and Zn explaining 73.6% variance and PC2: Pb, Zn, and Cd …
Who Pays To Clean Up What A Dying Industry Leaves Behind?,
2021
City University of New York (CUNY)
Who Pays To Clean Up What A Dying Industry Leaves Behind?, Audrey Carleton
Capstones
As the birthplace of oil and gas, Pennsylvania is home to the highest number of orphaned abandoned oil and gas wells in the country — an estimated 300,000 to 500,000 dot the Keystone State, all remnants of a dying industry. These wells emit methane, a potent greenhouse gas, and have, for decades, caused alarm to hundreds of residents, documents obtained in a months-long capstone investigation show. The state is currently plugging 10 to 12 abandoned wells per year, on average, out of hundreds of thousands, in part because it has not collected enough in cleanup funds from producers to fund …
Hyperlocal Air Quality Exposure Assessment To Support Health Studies,
2021
Washington University in St. Louis
Hyperlocal Air Quality Exposure Assessment To Support Health Studies, Pradeep Prathibha
McKelvey School of Engineering Graduate Student 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 …
Improving Care For Patients With Atrial Fibrillation Through The Use Of A Personal Electrocardiogram,
2021
Southwest Medical
Improving Care For Patients With Atrial Fibrillation Through The Use Of A Personal Electrocardiogram, Teresa Praus, Jonathan Li, Svetlana Barbarash, Manuel Proenza, Mary D. Bondmass
Nursing Faculty Research
Background: Atrial fibrillation (AF) is the most common arrhythmia affecting more than six million people in the United States. The economic burden is estimated to be >$6 billion annually with catastrophic events dramatically increasing expenditure. When patients experience symptoms, they commonly present to an acute care facility; this can be costly and anxiety provoking. Local problem: Same-day access issues prohibit patients from communicating directly with their cardiology provider, forcing them to use resources and increasing psychological burden.Methods:A convenience sample, made up of 43 patients, was given a KardiaMobile device. Eligible patients had ≥2 AF-related emergency department (ED) or urgent care …
Combining Community Wastewater Genomic Surveillance With State Clinical Surveillance: A Framework For Sars-Cov-2 Public Health Practice.,
2021
University of Louisville
Combining Community Wastewater Genomic Surveillance With State Clinical Surveillance: A Framework For Sars-Cov-2 Public Health Practice., Ted Smith, Rochelle H. Holm, Ray Yeager, Joseph B. Moore Iv, Eric C. Rouchka, Kevin J. Sokoloski, Daymond Talley, Vaneet Arora, Sarah Moyer, Aruni Bhatnagar
Faculty and Staff Scholarship
Study objective: To garner a framework for combining community wastewater surveillance with state clinical surveillance that influence confirmation of SARS-CoV-2 variants within the community, and recommend how the flow of such research evidence could be expanded and employed for public health response. Design, setting, and participants: This work involved analyzing wastewater samples collected weekly from 17 geographically resolved locations in Louisville/Jefferson County, Kentucky from February 10 to November 29, 2021. Genomic surveillance and RT-qPCR platforms were used as screening to identify SARS-CoV-2 in wastewater, and state clinical surveillance was used for confirmation. Main results: The results demonstrate increased epidemiological value …
Toxicity And Effects Of Tire Crumb Rubber In The Aquatic Environment,
2021
Clemson University
Toxicity And Effects Of Tire Crumb Rubber In The Aquatic Environment, Stephanie Laplaca
All Dissertations
Plastic materials have provided innovative solutions to society’s evolving needs and challenges. Due to their durability and resistance to degradation, plastics remain in the environment for long periods of time and can therefore be transported to many environmental compartments such as water, sediment, and biota. Microplastics (MPs) have been defined as synthetic plastic particles that have at least one dimension less than 5 mm and are insoluble in water. Microrubber (MR), a recently acknowledged sub-group of MPs, has been documented in environmental samples more recently, frequently comprising a large portion of total MPs of various samples. In South Carolina specifically, …
Investigation Of Toxic Chemicals In Plant-Based Milk Alternatives,
2021
Texas Southern University
Investigation Of Toxic Chemicals In Plant-Based Milk Alternatives, Chukwunonso A. Anakwue
Dissertations (2016-Present)
Milk is a dietary component consumed all over the world and is known to be essential for development in children. Despite all the nutritional advantages associated with milk consumption, several issues like lactose intolerance, and high lipid content, etc., negatively affects the perception of cow milk consumption, and has grown into general health concerns. Issues with cow milk consumption drove for a healthier alternative and this led to plant-based milk alternatives (PBMA). Several studies have linked consumption of these PBMAs with other negative effects such as: allergy, poor nutrient profile and the presence of other foreign chemicals. This study’s main …
Providing Pesticide License Holders Ceu Credits During The Covid 19 Pandemic,
2021
Utah State University
Providing Pesticide License Holders Ceu Credits During The Covid 19 Pandemic, Michael Wierda, Cody Zesiger, Jacob Hadfield, Micheal Pace, Paige Wray
Outcomes and Impact Quarterly
USU Extension and UDAF provide continuing education units (CEUs) for pesticide license renewal. However, in 2020, face-to-face meetings were canceled due to COVID-19. Workshop cancellation left CEU seekers with limited options. In response, programming was adapted and 2,992 CEU hours were provided via online sessions.
Cardenolide, Potassium, And Pyrethroid Insecticide Combinations Reduce Growth And Survival Of Monarch Butterfly Caterpillars (Lepidoptera: Nymphalidae),
2021
University of Nebraska-Lincoln
Cardenolide, Potassium, And Pyrethroid Insecticide Combinations Reduce Growth And Survival Of Monarch Butterfly Caterpillars (Lepidoptera: Nymphalidae), Annie J. Krueger, Emily A. Robinson, Thomas J. Weissling, Ana M. Vélez, Troy D. Anderson
Department of Entomology: Faculty Publications
The monarch butterfly, Danaus plexippus L., has evolved to be insensitive to milkweed cardenolides via genetic modifications of Na+/K+-ATPase. There is concern for insecticide exposures near agriculture, with little information on monarch caterpillar toxicology. It is unclear how cardenolide insensitivity may affect the sensitivity of monarch caterpillars to pyrethroid insecticides. Additionally, potassium fertilizers may affect monarch caterpillar physiology and cardenolide sequestration. Here, we investigated the growth, survival, and development of caterpillars exposed to the cardenolide ouabain, bifenthrin, and potassium chloride (KCl) alone and in combination. Caterpillars were either exposed to (1) ouabain from third- to fifth-instar …
Preliminary Results Of Measurements Of Potentially Cancerogenic 1,4-Dioxane In Surface Water Of Twin Lakes Preserve, Wantagh, Ny,
2021
University at Albany, State University of New York
Preliminary Results Of Measurements Of Potentially Cancerogenic 1,4-Dioxane In Surface Water Of Twin Lakes Preserve, Wantagh, Ny, Lijo Jose Varghese
Legacy Theses & Dissertations (2009 - 2024)
1,4-dioxane is a volatile organic compound categorized by the United States Environmental Protection agency (EPA, 2017) as a possible human carcinogen potent to cause tumors in humans. Even though this compound poses significant environmental danger when it contaminates water sources, it is surprisingly less studied, and how it behaves in surface water is less understood. The biggest 1,4-dioxane plume in the United States is located in Long Island region of New York. The purpose of this study was to investigate the presence of 1,4-dioxane in surface water and document the influence of existing 1,4-dioxane plume to Twin Lakes Preserve. To …
Examining An Intersection Of Environmental Justice And Covid-19 Risk Assessment: A Review,
2021
University of Tennessee at Chattanooga
Examining An Intersection Of Environmental Justice And Covid-19 Risk Assessment: A Review, Ashley Ellis
Honors Theses
This study views the risks associated with the novel coronavirus (COVID-19) as an environmental injustice issue due to the connection between existing environmental disparities and the disproportional negative impacts brought upon by the virus. The social and health determinants attributed to those environmental disparities have traditionally been evaluated as individual risk factors, an approach that fails to gauge the complexity of an environmental injustice issue. This study employs the emerging theory of intersectionality, a belief that phenomena cannot be linked to one principal cause but instead an interconnected web of influences, in order to synthesize the multitude of factors believed …
Socio-Economic And Environmental Issues: Implications For Food Security In Nigeria,
2021
Covenant University
Socio-Economic And Environmental Issues: Implications For Food Security In Nigeria, Isaiah O. Olurinola, Evans Osabuohien
Economic and Financial Review
Socio-economic activities within the agricultural sector have witnessed significant changes in recent times. Two major factors account for this recent development. Available evidence shows that over the last four decades, environmental challenges (such as pollution, extreme weather, fire disaster and deforestation, among others) have been on the increase in Nigeria. This is complicated by a weak institutional framework to stem the tide (Egbetokun et al., 2018; 2020). Also, the information from Nigeria Meteorological Agency (NIMET) shows that the annual mean climatic conditions (that is rainfall and temperature) in Nigeria have witnessed huge variation (NIMET, 2020; Egbetokun et al., 2020), which …
Optimising Risk Governance : A Case Study Of The Philippines’ Change Crew Hub System,
2021
World Maritime University
Optimising Risk Governance : A Case Study Of The Philippines’ Change Crew Hub System, Cynthia E. Esquivias
World Maritime University Dissertations
No abstract provided.
Plastic Biodegradation Through Insects And Their Symbionts Microbes: A Review,
2021
Institute of Plant Protection, MNS-University of Agriculture, Multan, Pakistan.
Plastic Biodegradation Through Insects And Their Symbionts Microbes: A Review, Huda Bilal, Hasnain Raza, Haseena Bibi, Tehmina Bibi
Journal of Bioresource Management
Plastic waste has recently been identified as one of the most serious environmental issues, affecting all life forms, natural habitats, and the economy, and is one of the most serious global environmental problems, second only to climate change. Seeking alternative environmentally sustainable options, such as biodegradation instead of conventional disposal, is critical in the face of this challenge. However, there is currently a lack of information about the mechanisms and efficacy of plastic biodegradation. From this perspective, this study aims to illustrate the negative environmental impacts of the plastic waste. It also addresses the role of insects and gut microbiota …
Transcriptomic Analysis Reveals That Municipal Wastewater Effluent Enhances Vibrio Vulnificus Growth And Virulence Potential,
2021
University of South Carolina
Transcriptomic Analysis Reveals That Municipal Wastewater Effluent Enhances Vibrio Vulnificus Growth And Virulence Potential, Karlen Enid Correa Velez, Robert Sean Norman
Faculty Publications
Vibrio vulnificusis an opportunistic pathogen indigenous to estuarine and marine environments and associated with aquatic organisms. Vibrio vulnificusis of utmost importance because it causes 95% of the seafood-related deaths in the United States due to rapid progression of septicemia. Changes in environmental parameters associated with climate change and coastal population expansion are altering geographical constraints, resulting in increased Vibrio spread, exposure, and rates of infection. In addition, coastal population expansion is resulting in increased input of treated municipal sewage into areas that are also experiencing increased Vibrio proliferation. This study aimed to better understand the influence of treated …
Public Awareness And Support For Use Of Wastewater For Sars-Cov-2 Monitoring: A Community Survey In Louisville, Kentucky.,
2021
University of Louisville
Public Awareness And Support For Use Of Wastewater For Sars-Cov-2 Monitoring: A Community Survey In Louisville, Kentucky., Rochelle H. Holm, J. Michael Brick, Alok R. Amraotkar, Joy L. Hart, Anish Mukherjee, Jacob Zeigler, Adrienne M. Bushau-Sprinkle, Lauren B. Anderson, Kandi L. Walker, Daymond Talley, Rachel J. Keith, Shesh N. Rai, Kenneth E. Palmer, Aruni Bhatnagar, Ted Smith
Faculty and Staff Scholarship
The majority of sewer systems in the United States and other countries, are operated by public utilities. In the absence of any regulation, public perception of monitoring wastewater for population health biomarkers is an important consideration for a public utility commission when allocating resources for this purpose. In August 2021, we conducted a survey as part of an ongoing COVID-19 community prevalence study in Louisville/Jefferson County, KY. The survey comprised of seven questions about awareness of and privacy concerns and was sent to 32,000 households randomly distributed within the county. A total of 1,220 sampled adults participated in the probability …
High-Throughput Sequencing Of Sars-Cov-2 In Wastewater Provides Insights Into Circulating Variants.,
2021
Arizona State University
High-Throughput Sequencing Of Sars-Cov-2 In Wastewater Provides Insights Into Circulating Variants., Rafaela S. Fontenele, Simona Kraberger, James Hadfield, Erin M. Driver, Devin Bowes, La Rinda A. Holland, Temitope O.C. Faleye, Sangeet Adhikari, Rahul Kumar, Rosa Inchausti, Wydale K. Holmes, Stephanie Deitrick, Philip Brown, Darrell Duty, Ted Smith, Aruni Bhatnagar, Ray A. Yeager, Rochelle H. Holm, Natalia Hoogesteijn Von Reitzenstein, Elliott Wheeler, Kevin Dixon, Tim Constantine, Melissa A. Wilson, Efrem S. Lim, Xiaofang Jiang, Rolf U. Halden, Matthew Scotch, Arvind Varsani
Faculty and Staff Scholarship
Severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) likely emerged from a zoonotic spill-over event and has led to a global pandemic. The public health response has been predominantly informed by surveillance of symptomatic individuals and contact tracing, with quarantine, and other preventive measures have then been applied to mitigate further spread. Non-traditional methods of surveillance such as genomic epidemiology and wastewater-based epidemiology (WBE) have also been leveraged during this pandemic. Genomic epidemiology uses high-throughput sequencing of SARS-CoV-2 genomes to inform local and international transmission events, as well as the diversity of circulating variants. WBE uses wastewater to analyse community spread, …
The Rapid Assessment Of Aggregated Wastewater Samples For Genomic Surveillance Of Sars-Cov-2 On A City-Wide Scale.,
2021
University of Louisville
The Rapid Assessment Of Aggregated Wastewater Samples For Genomic Surveillance Of Sars-Cov-2 On A City-Wide Scale., Eric C. Rouchka, Julia H. Chariker, Kumar Saurabh, Sabine Waigel, Wolfgang Zacharias, Mei Zhang, Daymond Talley, Ian Santisteban, Madeline Puccio, Sarah Moyer, Rochelle H. Holm, Ray A. Yeager, Kevin J. Sokoloski, Joshua Fuqua, Aruni Bhatnagar, Ted Smith
Faculty and Staff Scholarship
Throughout the course of the ongoing SARS-CoV-2 pandemic there has been a need for approaches that enable rapid monitoring of public health using an unbiased and minimally invasive means. A major way this has been accomplished is through the regular assessment of wastewater samples by qRT-PCR to detect the prevalence of viral nucleic acid with respect to time and location. Further expansion of SARS-CoV-2 wastewater monitoring efforts to include the detection of variants of interest/concern through next-generation sequencing has enhanced the understanding of the SARS-CoV-2 outbreak. In this report, we detail the results of a collaborative effort between public health …
Assessing Stakeholder Needs And Preferences For Coastal Swimming Advisories In Charleston, South Carolina,
2021
University of South Carolina
Assessing Stakeholder Needs And Preferences For Coastal Swimming Advisories In Charleston, South Carolina, Zachary Haynes Hart
Theses and Dissertations
The Beaches Environmental Assessment and Coastal Health (BEACH) Act was established in 2000 to reduce the risk of illness among recreational users of beaches in the United States. Specifically, the Act provides coastal states and territories with annual grants to conduct routine water quality monitoring at beaches and to notify the public when pathogen levels exceed safe thresholds. Many coastal states use beach signs, agency websites, and press releases to notify the public, but a 2011 evaluation of the public notification component of the BEACH Act found that few states are choosing methods based on target audience characteristics and interests. …
Novel Pilot Development Of A Closed-Loop Sustainable System Between Biogas Renewable Energy, Distilling, And Aquaculture By Vermiculture Of Stillage Wastes,
2021
University of Louisville
Novel Pilot Development Of A Closed-Loop Sustainable System Between Biogas Renewable Energy, Distilling, And Aquaculture By Vermiculture Of Stillage Wastes, Samuel C. Kessler
The Cardinal Edge
This study provides a mixed-methods approach in analyzing a potential closed-loop system between renewable biogas production from anaerobic digestion, vermiculture production, aquaculture production, and organic wastes with a particular focus on stillage wastes. Such system may hold significant promise for significantly reducing organic carbon and methane emissions from its components, and should be assessed for such. The 2021 IPCC report essentially identified methane reduction as the single fastest way to slow global warming (IPCC, 2021), making the study and implementation of methane-reducing systems and supportive policy for them critical. Knowledge gaps to implementing this system were qualitatively identified as disconnect …
