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Gendered Precarity, Informality And Survival Among Cambodian Women Migrants In Thailand, Sokha Eng Aug 2026

Gendered Precarity, Informality And Survival Among Cambodian Women Migrants In Thailand, Sokha Eng

Graduate Doctoral Dissertations

Migration scholars have long assumed that women migrant laborers move as individuals, leave family behind, are governed by labor migration policies, and are employed full-time. However, in the context of South-South migration, many workers migrate as families, with husbands, wives, and sometimes even children. Some engage in the informal economy, serving as casual and on-call workers. These types of employment fall outside the scope of standard labor migration policies and therefore receive less attention. As a result, migrants’ experiences in such work arrangements remain underexplored. This study examines the experiences of Cambodian migrant women in Thailand by examining the case …


Redesigning Quantum Theory, Matthew Weiss Aug 2026

Redesigning Quantum Theory, Matthew Weiss

Graduate Doctoral Dissertations

QBism understands quantum mechanics to be probability theory supplemented by additional nonclassical coherence conditions. In this dissertation, we develop these nonclassical coherence conditions from first principles, emphasizing the role of a well chosen reference measurement. After treating standard probability on subjective Bayesian lines, we demonstrate an equivalence between the QBist approach and the existing framework of generalized probabilistic theories. We show that the fundamental nonclassical coherence relation may almost always be taken to be a gentle modification of the law of total probability, and give a coherentist account of when an experimental scenario has a classical explanation. Finally, we show …


Traversing The Broken Staircase: The Experiences Of Academic Neglect For Black & Brown First-Generation College Students, Kashmeel D. Mckoena Aug 2026

Traversing The Broken Staircase: The Experiences Of Academic Neglect For Black & Brown First-Generation College Students, Kashmeel D. Mckoena

Graduate Doctoral Dissertations

Although Black and Brown students are diversifying college campuses and opening doors for their families as new cohorts of first-generation collegians, they often find themselves silently dealing with the aftermath of academic neglect from U.S. secondary education. This phenomenon can be understood from extant literature as absence of reliable guidance, mentorship, resources, and support that help students persist and succeed in their academic goals. Existing explanations of grit and resilience (Duckworth et al., 2007) not only erase the existence and impact of academic neglect, but also mask the creative solutions and compensatory strategies that Black and Brown first-generation college students …


A Statistical Mechanics Approach To Reinforcement Learning, Jacob Adamczyk Aug 2026

A Statistical Mechanics Approach To Reinforcement Learning, Jacob Adamczyk

Graduate Doctoral Dissertations

Reinforcement learning (RL), the study of optimal decision-making over long timescales in stochastic systems, has recently seen remarkable advances due in large part to the efforts of the deep learning community. RL has witnessed great success in solving problems in video games, robotics, biological control, and language modeling. However, a unified statistical mechanics framework to understand and develop the corresponding algorithms is lacking. To address this issue, we begin by showing that the reinforcement learning problem can be formulated and solved using the tools of statistical mechanics. Drawing on physical principles of free energy minimization and invariance, we address important …


Redefined: Understanding The Experience Of Black Joy Among Black Youth, Kaela A. Yamini Aug 2026

Redefined: Understanding The Experience Of Black Joy Among Black Youth, Kaela A. Yamini

Graduate Doctoral Dissertations

The study of Black joy is a newer concept and, therefore, reflected in a small but growing body of literature. Many scholars have reflected on the theoretical nature of Black joy and how it can appear across settings, e.g., academically, occupationally, communally, and internally, but very few studies have examined this phenomenon empirically. Several definitions of Black joy have emerged in connection to history and suffering; however, there is still a notable lack of agreement among researchers. Despite that, all conceptualizations acknowledge how this emotional experience is much greater than the pain associated with it and highlight its ability …


“Nothing About Us Without Us”: Examining Sense Of Belonging And College Success Through The Experiences Of Students With Autism Spectrum Disorder, Courtney E. Mulligan Aug 2026

“Nothing About Us Without Us”: Examining Sense Of Belonging And College Success Through The Experiences Of Students With Autism Spectrum Disorder, Courtney E. Mulligan

Graduate Doctoral Dissertations

Sense of belonging has become an increasingly important indicator of student engagement, persistence, and success in higher education. Despite this, limited research has explored how college students with autism experience and define belonging while at college. As increasing numbers of students with autism pursue postsecondary education, institutions face a growing need to better understand the factors that influence student experiences and outcomes. The purpose of this mixed-methods study was to investigate the experiences of sense of belonging among current college students with autism and identify the factors that contribute positively or negatively to this experience to inform more inclusive higher …


The Negotiated Identities Of Refugee-Background Women During Resettlement, Iuliia Fakhrutdinova Aug 2026

The Negotiated Identities Of Refugee-Background Women During Resettlement, Iuliia Fakhrutdinova

Graduate Doctoral Dissertations

Refugee-background women experience unique challenges while resettling in the U.S. as they navigate complicated transnational gender roles, education gaps, migration trauma, learning a new language, and literacy in the adaptation process during resettlement, which can derail the productive paths they are on. Therefore, ignoring refugee-background women’s unique experiences and failing to understand their identities prevents our society from doing social justice and creating a space for a smooth adaptation to the new context. Language plays a paramount role in identity formation, as it moves away from the belief that identity is an essential concept. For refugee-background women during resettlement, their …


Social Experiences Of Chinese International Students At A Us Liberal Arts College, Ke Yao Aug 2026

Social Experiences Of Chinese International Students At A Us Liberal Arts College, Ke Yao

Graduate Doctoral Dissertations

This study provided detailed empirical evidence on social experiences of Chinese international students within a US liberal arts college context through examining their race, culture, gender, social class, and mental health experiences. This study showed that the experiences of Chinese international students in the US higher education institutions are influenced not only by individual adaptation but also by broader social and institutional contexts. First, findings of this study demonstrated that institutional features of liberal arts colleges, such as small campus environment, residential nature, and more interactive opportunities between domestic and Chinese international students, can simultaneously create opportunities for inclusion and …


Factorial Structure Of A Bilingual Progress Monitoring Tool For Mindfulness Interventions, Andrea V. Molina Palacios Aug 2026

Factorial Structure Of A Bilingual Progress Monitoring Tool For Mindfulness Interventions, Andrea V. Molina Palacios

Graduate Doctoral Dissertations

Mindfulness-based interventions (MBIs) are an increasingly popular option for schools to support youth in each of the multi-tiered systems of support (MTSS). MBIs have proven to increase attention, help with emotion regulation, decrease symptoms of anxiety and depression, and overall increase students’ wellbeing with a cost-effective package that makes it affordable for schools to implement. Moreover, MBIs have also proven to be effective for Hispanic youth who are at a higher risk of experiencing low access to mental health care and higher levels of poverty, which puts them at risk for dropping out and having low academic achievement. However, there …


Genomic Based Environmental Health Assessment: Vieques, Puerto Rico, Valeria Hernandez Talavera Aug 2026

Genomic Based Environmental Health Assessment: Vieques, Puerto Rico, Valeria Hernandez Talavera

Graduate Doctoral Dissertations

From 1941 to 2003, the United States Navy and North Atlantic Treaty Organization (NATO) used Vieques, Puerto Rico, for military training, which led to long-term pollution from metals, organic chemicals, explosives, and per- and polyfluoroalkyl substances (PFAS). While earlier research found these contaminants in the environment and in living organisms, their combined effects on local ecosystems remain poorly understood.

This dissertation used a Genomic-Based Environmental Health Assessment (GEHA) framework to study the ecological risks from past military pollution in Vieques. The approach combined sediment toxicity tests, chemical analysis, gene expression studies, microbial community analysis, and community-based research. The four main …


From Structure To Experiences: How Facility Capacity And Staffing Shape The Adoption And Impact Of Lgbt-Affirming Policies In Long-Term Care, Andrew Alberth Aug 2026

From Structure To Experiences: How Facility Capacity And Staffing Shape The Adoption And Impact Of Lgbt-Affirming Policies In Long-Term Care, Andrew Alberth

Graduate Doctoral Dissertations

Long-term care (LTC) settings – including nursing homes (NHs) and assisted living facilities (ALFs) – provide necessary care for individuals with extreme health and functioning limitations. Sexual and gender minority (LGBT) older adults report challenges receiving effective, person-centered care LTC. Some LGBT older adults may hide their sexual orientation and gender identity when entering LTC settings or delay seeking needed LTC fearing discrimination from staff and other residents. Furthermore, staff in LTC settings indicate little awareness of LGBT-residents and possess inadequate LGBT-cultural competency necessary for providing person-centered care. Therefore, LGBT-residents LTC experiences remain underexplored in the broader research. Adopting LGBT-affirming …


Identifying Discrete Reappraisals And Examining The Properties Of Cognitive Reappraisal That Predict Emotional Outcomes, Jenny L. Wu Aug 2026

Identifying Discrete Reappraisals And Examining The Properties Of Cognitive Reappraisal That Predict Emotional Outcomes, Jenny L. Wu

Graduate Doctoral Dissertations

Cognitive reappraisal is widely regarded as an adaptive emotion regulation strategy and a central strategy to promote cognitive change in psychological treatments. However, findings regarding its effectiveness have been inconsistent, potentially due to the tendency to conceptualize reappraisal as a uniform process. The present study sought to adopt a more fine-grained, process-oriented approach by examining variability in how reappraisal is implemented. Specifically, this study investigated (1) the overall effectiveness of cognitive reappraisal, (2) whether the perceived believability of reappraisals predicts emotional outcomes, and (3) whether different types of reappraisals are associated with differences in emotional outcomes. Participants completed a modified …


Home, Neighborhood, And Community Environments And Social Isolation In Later Life: Joint Associations And Their Moderation By Life-Course Socioeconomic Mobility, Jeein Law Aug 2026

Home, Neighborhood, And Community Environments And Social Isolation In Later Life: Joint Associations And Their Moderation By Life-Course Socioeconomic Mobility, Jeein Law

Graduate Doctoral Dissertations

Social isolation is a major public health concern among older adults, yet less is known about how multilevel residential environments shape isolation among those aging in place. Guided by the Socio-Ecological Model, Person–Environment Fit, and a life-course perspective, this dissertation examined whether micro-level home hazards, meso-level neighborhood social cohesion and physical disorder, and macro-level census-tract structural conditions were associated with social isolation. It also examined whether life-course socioeconomic mobility moderated the associations between home and neighborhood environments and social isolation.

This dissertation used two nationally representative longitudinal studies of U.S. older adults. Aims 1 and 2 used the National Health …


I Must Be Well, To Do Well: Examining The Relationship Between Toxic Stem Environments, Trauma, Stem Support, And Academic Outcomes Among Diverse Graduate Women In Stem, Aisha Farra Aug 2026

I Must Be Well, To Do Well: Examining The Relationship Between Toxic Stem Environments, Trauma, Stem Support, And Academic Outcomes Among Diverse Graduate Women In Stem, Aisha Farra

Graduate Doctoral Dissertations

Women, particularly Women of Colour (WOC), remain underrepresented in STEM. In the last two decades, research has sought to better understand women’s experiences in STEM, highlighting challenges such as isolation, sexism, and racism, which negatively impact mental health and STEM persistence. While these mental health challenges have been documented, further work is needed to examine how these experiences are related to trauma symptoms and physical health outcomes, as well as the mechanisms through which they shape academic outcomes. This quantitative study investigated the relationships among toxic STEM experiences (i.e., gendered racism, sexism, and isolation), trauma symptoms and physical health concerns, …


The Impact Of Childhood Adversity On Students In Urban Public Elementary Schools: Recognizing, Responding, And Implementing Interventions To Support Struggling Students Through In-Depth Conversations With School Leaders, Stephen Shaw-Lyon Aug 2026

The Impact Of Childhood Adversity On Students In Urban Public Elementary Schools: Recognizing, Responding, And Implementing Interventions To Support Struggling Students Through In-Depth Conversations With School Leaders, Stephen Shaw-Lyon

Graduate Doctoral Dissertations

THE IMPACT OF CHILDHOOD ADVERSITY ON STUDENTS IN URBAN PUBLIC ELEMENTARY SCHOOLS: RECOGNIZING, RESPONDING, AND IMPLEMENTING INTERVENTIONS TO SUPPORT STRUGGLING STUDENTS THROUGH IN-DEPTH CONVERSATIONS WITH SCHOOL LEADERS

August 2026

Stephen P. Shaw-Lyon, A.A., Massasoit Community College

B.A., Arizona State University

M.Ed., Fitchburg State University

C.A.G.S., Bridgewater State University

Ph.D., University of Massachusetts Boston

Directed by Assistant Professor Bodunrin Banwo

This dissertation explores how adverse childhood experiences (ACEs) affect students in urban public elementary schools in Massachusetts. While the original ACE Study reshaped understanding of adult health outcomes, less research examines how trauma influences children’s academic, behavioral, and social experiences in …


Governing Climate Change For Sustainable Food Security In The Busoga Region Of Uganda, James Kintu Aug 2026

Governing Climate Change For Sustainable Food Security In The Busoga Region Of Uganda, James Kintu

Graduate Doctoral Dissertations

Busoga, Uganda's most sugarcane-intensive sub-region, hosts seven mills and an expanding outgrower economy, yet remains among Uganda's most food-insecure areas, with over half of its households food-insecure. This study examined how governance of climate change and sugarcane expansion shapes capabilities for food access, land tenure, and decision-making among women, youth, and land-poor households in Jinja and Buyende.

The study developed an integrated CA-CEP-RFS framework, combining the Capability Approach, Comparative Environmental Politics, and the Resilient Food Systems framework, with Sen's Entitlement Framework bridging capabilities to production, trade, own-labor, and transfer entitlements. A qualitative case study drew on a documentary review, 27 …


Understanding Factors Influencing Multiple Tobacco Product Use Among Adolescents In Thailand: A Structural Equation Modeling Approach, Chaowalit Srisoem Aug 2026

Understanding Factors Influencing Multiple Tobacco Product Use Among Adolescents In Thailand: A Structural Equation Modeling Approach, Chaowalit Srisoem

Graduate Doctoral Dissertations

Tobacco use among Thai adolescents is shaped by personal, environmental, and product-related factors. However, the pathways linking these influences to actual behavior remain unclear. This study examined how personal, environmental, and product-related factors, along with intentions to use, relate to tobacco use among Thai adolescents. A cross-sectional secondary analysis was conducted using data from the 2022 Thailand Global Youth Tobacco Survey of 6,235 students aged 13–15 years. Survey weights methods were applied to produce nationally representative estimates. Confirmatory factor analysis and structural equation modeling assessed latent constructs, and multinomial logistic regression examined predictors of single, dual, and multiple product use. …


Multicomponent Reaction-Initiated Synthesis Of Polyheterocyclic Compounds, Ashutosh Nath Aug 2026

Multicomponent Reaction-Initiated Synthesis Of Polyheterocyclic Compounds, Ashutosh Nath

Graduate Doctoral Dissertations

Efficient synthesis of novel heterocycles with biological interest remains a challenge in modern organic chemistry. This dissertation presents the development of efficient synthetic strategies that combine multicomponent reactions (MCRs) with sequential reactions for rapid access a diverse array of polyheterocyclic compounds. The projects are: 1) Groebke-Blackburn-Bienaymé (GBB) reaction followed by N-acylation and Friedel-Crafts (FC) cyclization for the construction of imidazopyridine- and indole-fused azepinones involving an unusual ring-expansion process. 2) Modified GBB condensation products for intramolecular Diels-Alder (IMDA) cycloaddition and dehydrative re-aromatization to access imidazopyridine-fused isoquinolinones. 3) Integration of the Ugi-three component reaction (Ugi-3CR) and Pictet-Spengler (PS) reaction followed by …


The Effect Of State Policy On Individuals With Mental Illness In Nursing Homes: A Multilevel Analysis, Adrita Barooah Aug 2026

The Effect Of State Policy On Individuals With Mental Illness In Nursing Homes: A Multilevel Analysis, Adrita Barooah

Graduate Doctoral Dissertations

ABSTRACT

THE EFFECT OF STATE POLICY ON INDIVIDUALS WITH MENTAL ILLNESS IN NURSING HOMES: A MULTILEVEL ANALYSIS

August 2026

Adrita Barooah, B.Sc., University of Delhi, India

M.S., University of Massachusetts Boston

Ph.D., University of Massachusetts Boston

Directed by Professor Pamela Nadash

The proportion of individuals living with a mental illness in U.S. nursing homes has grown substantially over the past few decades (Fashaw et al., 2020), raising serious concerns about care quality, resource adequacy, and costs to both nursing homes and government payers. The lack of adequate resources and knowledge has resulted in sub-par mental health care (O'Connor et al., …


Dynamics Of Swimming Microorganisms At Structured Liquid Crystal Interfaces, Vajra Sabhapathy Badha Aug 2026

Dynamics Of Swimming Microorganisms At Structured Liquid Crystal Interfaces, Vajra Sabhapathy Badha

Graduate Doctoral Dissertations

Active matter systems are self-driven units that consume energy to generate motion and mechanical stresses, producing non-equilibrium states of broad physical significance. Examples include synthetic microswimmers and migrating cells. Motile bacteria are a widely studied biological example because their self-propelled motion, hydrodynamic interactions, and collective organization are strongly coupled to local environmental conditions. Their swimming is sensitive to interfacial viscoelasticity, ordering, confinement, and hydrodynamic boundary effects, making them useful for investigating how interfaces regulate active biological motion. Because bacterial accumulation and attachment at interfaces are central to colonization and biofilm formation, these interactions are relevant to both active matter physics …


Revictimization Of Female Sexual Assault Survivors During Cross-Examination From The Perspective Of Criminal Prosecutors, Robyn Fuchs Aug 2026

Revictimization Of Female Sexual Assault Survivors During Cross-Examination From The Perspective Of Criminal Prosecutors, Robyn Fuchs

Walden Dissertations and Doctoral Studies

Sexual assault is a heinous crime that remains one of the most underreported crimes. Victims of sexual assault face scrutiny for reporting and may be revictimized by the process. The intent of this study was to examine how cross-examination has the potential to revictimize female sexual assault survivors from the perspective of criminal prosecutors. This study may provide insight on whether defense attorneys intentionally cause harm to victims or if there is an automatic level of trauma in testifying. Ten interviews were conducted with criminal prosecutors across the United States. After the interviews, the transcripts were manually analyzed to identify …


Fashion, Lifestyle, And Symbolic Capital: Identity And Resistance In Eka Kurniawan’S Beauty Is A Wound, Dewi Meyrasyawati, Cysakaren Diva Pratiwi, Nisar Ul-Haq Aug 2026

Fashion, Lifestyle, And Symbolic Capital: Identity And Resistance In Eka Kurniawan’S Beauty Is A Wound, Dewi Meyrasyawati, Cysakaren Diva Pratiwi, Nisar Ul-Haq

Paradigma: Jurnal Kajian Budaya

This study examines how fashion culture and lifestyle, understood as modes of self presentation, social performance, and everyday practice, operate as tools of identity construction and resistance in Eka Kurniawan’s Beauty Is a Wound. The objective is to reveal how beauty, personal choices, and public perception function as symbolic capital in negotiating gendered power relations, class hierarchies, and political constraints. Using close textual analysis, the research explores how female characters, particularly Dewi Ayu, mobilize appearance, behavior, and life decisions to challenge dominant ideologies and redefine their roles in society. The findings show that fashion culture in the novel extends beyond …


Comm 11 Fundamentals Of Interpersonal Communication Textbook, Teresa A. Fisher Aug 2026

Comm 11 Fundamentals Of Interpersonal Communication Textbook, Teresa A. Fisher

Open Educational Resources

A survey of interpersonal communication.


Truly Blown Away — Humanistic Lens Looking At Glassblowers’ Creative Thinking: A Qualitative Case Study, Yugant Patra Aug 2026

Truly Blown Away — Humanistic Lens Looking At Glassblowers’ Creative Thinking: A Qualitative Case Study, Yugant Patra

The Qualitative Report

This study examines how emotional and cognitive engagement shape glassblowing artists’ decision-making and artistic outcomes throughout the creative process. Using a qualitative case study methodology, the study examines how glassblowing artists conceptualize, execute, and refine their work by balancing their artistic vision with the medium's technical demands through a humanistic lens. Five themes emerge, which are discussed: the identification with self – confronting the demons, I belong here, claiming the molten as my own, the reign of glass and from it fractures rising anew, and having a conversation with glass. The study closes with the need for continued research on …


With Students, As A Student: Using Reflexive Autoethnography To Make Sense Of Navigating Student–Researcher Liminality In A Ph.D., Melody Bishop Aug 2026

With Students, As A Student: Using Reflexive Autoethnography To Make Sense Of Navigating Student–Researcher Liminality In A Ph.D., Melody Bishop

The Qualitative Report

Postgraduate researchers (PGRs) are increasingly encouraged to practice reflexivity. But there is a lack of PGR-authored literature about what it means to negotiate multiple identities, particularly for student–researchers doing research with students. This paper explores challenges experienced during a longitudinal Ph.D. project involving undergraduate students with long-term health conditions. I present outcomes of a reflexive autoethnographic analysis of a diary kept making sense of research challenges, including holding dual positions as a student–researcher at the same institution. Drawing on the notion of liminality, I argue that the boundaries between my student–researcher identities, and between myself and participants, have been consistently …


Autoethnography: Understandings, Evolution, And The Influence Of Genai, Prokopis Christou Aug 2026

Autoethnography: Understandings, Evolution, And The Influence Of Genai, Prokopis Christou

The Qualitative Report

Autoethnography occupies a central place within qualitative research because of its focus on lived experience, reflexivity, and meaning-making. In this paper, I critically examine the implications of generative artificial intelligence (GenAI) for autoethnographic inquiry through a reflexive and theoretically informed discussion situated within the contemporary AI-mediated era. By revisiting key understandings and developments of autoethnography while drawing on technological mediation theory, I explore how GenAI extends beyond a mere tool to become a mediating mechanism capable of profoundly shaping autoethnographic practice. Attention is given to how seemingly minor AI-generated alterations may transform lived experience into more polished, coherent, and emotionally …


The Lived Spirituality Experiences Of Adult Diabetes Patients In Adhering To Treatment, Dwight Mahaputera Marulitua Hutapea Aug 2026

The Lived Spirituality Experiences Of Adult Diabetes Patients In Adhering To Treatment, Dwight Mahaputera Marulitua Hutapea

The Qualitative Report

This descriptive phenomenological study explored the lived spirituality experiences of adult patients with Type 2 Diabetes Mellitus (T2DM) in adhering to treatment. Prior research has indicated that spirituality may influence attitudes toward and adherence to chronic disease management; however, empirical evidence addressing the spiritual dimension among people with diabetes remains limited. Guided by Colaizzi's (1978) phenomenological method, in-depth interviews were conducted with 12 purposively selected participants, equally distributed among Christians and Muslims. All interviews were transcribed verbatim and subjected to rigorous phenomenological analysis. Seven themes emerged from the data analysis: (a) spirituality strengthens relationships; (b) spirituality affects choices and outcomes; …


The Correlation Between Ankle Proprioception And Lower Extremity Muscle Reactions In Response To Simulated Ankle Sprains, Erin Carroll, Justin Stanek, Abby Salvadore Aug 2026

The Correlation Between Ankle Proprioception And Lower Extremity Muscle Reactions In Response To Simulated Ankle Sprains, Erin Carroll, Justin Stanek, Abby Salvadore

Clinical Practice in Athletic Training

Context: Neurological structures of the somatosensory system provide proprioceptive and neuromuscular input regarding joint positioning to the brain. Lower extremity motor control relies on local proprioceptive input to the central nervous system and neuromuscular control of individual joints to produce coordinated, global responses to external events. The purpose of this study was to investigate the relationship between ankle proprioception and lower extremity muscle reaction time in response to an unexpected ankle inversion perturbation.

Methods: Twenty healthy college-aged volunteers were recruited to participate by word of mouth. Absolute and exact errors for passive joint position sense (PJPS) were assessed using a …


Electrical Stimulation And Localized Heat After Dry Needling Treatment To Reduce Low Back Pain, Morgan M. Mersola, Amanda Hawkes, Adam Mendenhall Aug 2026

Electrical Stimulation And Localized Heat After Dry Needling Treatment To Reduce Low Back Pain, Morgan M. Mersola, Amanda Hawkes, Adam Mendenhall

Clinical Practice in Athletic Training

Context: Chronic low back pain (CLBP) is a musculoskeletal condition that often leads to reduced quality of life, prompting the need for effective conservative interventions such as dry needling (DN). A randomized controlled pilot study involving 12 participants was conducted at a physical therapy clinic.

Methods: The final subject pool consisted of a convenience sample of adults with CLBP lasting > 3 months. Participants were randomly assigned to either a dry needling-only group (DNO) or a dry needling plus modalities group (DN+M). The DNO group received a single dry needling treatment located at various sites along the multifidus by a physical …


Predictive Modeling Of Heavy Metal Pollution And Ecological Risk For Sustainable Water Quality Management In The Ny–Nj Harbor System, Md Shahnul Islam, Sara Naveed, Huan Feng, Tapos Kumar Chakraborty Aug 2026

Predictive Modeling Of Heavy Metal Pollution And Ecological Risk For Sustainable Water Quality Management In The Ny–Nj Harbor System, Md Shahnul Islam, Sara Naveed, Huan Feng, Tapos Kumar Chakraborty

Department of Earth and Environmental Studies Faculty Scholarship and Creative Works

Evaluating and forecasting surface water quality is essential for protecting aquatic ecosystems and improving water resource management. This study introduces a novel paradigm that integrates machine learning (ML) with the potential ecological risk index (PERI) to dynamically forecast, rather than statically assess, ecological risks from heavy metal contamination in an urban estuarine environment. Surface water samples from the Lower Passaic River in New Jersey, USA, were analyzed for copper (Cu), lead (Pb), and mercury (Hg) across multiple sites and sampling campaigns. Concentrations ranged from 3.1 to 42.6 µg/L for Cu, 1.8 to 25.4 µg/L for Pb, and 0.12 …