Papers by Oladele Ogunseitan
Nature Electronics, 2019
Electronic waste is the fastest growing category of hazardous solid waste in the world. Addressin... more Electronic waste is the fastest growing category of hazardous solid waste in the world. Addressing the problem will require international collaboration, economic incentives that protect labour, and management approaches that minimize adverse impacts on the environment and human health.
Frontiers in Public Health
In response to a University of California systemwide initiative to expand the knowledge base of c... more In response to a University of California systemwide initiative to expand the knowledge base of climate change, two half-day workshops were held for faculty in the College of Health Sciences at the UC Irvine. In the first workshop, 20 participants who teach in the Schools of Nursing, Medicine, Pharmacy, and Pharmaceutical Science, or the Program in Public Health convened to explore concepts of sustainability, theoretical models of curriculum integration, challenges to adding new competencies into professional training, and strategies for integrating climate change modules and case studies into the curricula. The second half-day workshop was held a year after the first workshop to review how faculty members have modified their syllabus to integrate climate change information with varying degrees of success. A case study is presented regarding an asynchronous fully online course Introduction to Global Health, which is open to enrollment by students from all campuses of the University ...
International Journal of Environmental Research and Public Health, 2020
To reduce the burden of chronic disease, the Centers for Disease Control and Prevention (CDC) fun... more To reduce the burden of chronic disease, the Centers for Disease Control and Prevention (CDC) funded the Orange County Partnerships to Improve Health (OC-PICH) project in Orange County, California. One of the strategies included adding outdoor exercise equipment (OEE) in two parks in Garden Grove and Anaheim. Using a quasi-experimental pre-post design, we evaluated park users’ physical activity levels before and after OEE installation using the System for Observing Play and Recreation in Communities (SOPARC). The OEE was installed along a walking path in Edison Park (Anaheim) and grouped within a single area (a “fitness zone”) in Garden Grove Park. In both parks, there were significantly greater odds of high-intensity physical activity overall after the installation—19% higher odds in Anaheim, and 23% higher odds in Garden Grove. However, the fitness zone area in Garden Grove had substantially higher odds of increased physical activity post-intervention (OR = 5.29, CI: 3.76–7.44, p ...
International Journal of Infectious Diseases, 2020
Background: Antibiotic resistance is a major contributing factor to global morbidity and mortalit... more Background: Antibiotic resistance is a major contributing factor to global morbidity and mortality and is associated with inappropriate medication use. However, the level of antibiotic consumption and knowledge about antibiotic resistance in Ghana is inadequately quantified. Our study identifies strategies for improved stewardship of antibiotics to prevent the proliferation of resistant pathogens by assessing the level of antibiotic knowledge, attitudes, and consumption behaviors by region, gender, age, and education in rural and urban Ghana. Methods: A cross-sectional study was conducted in 12 communities in the urban Greater Accra and rural Upper West regions of Ghana. A questionnaire survey was administered to 400 individuals aged 18 years and older in selected locations during September-October 2018 to collect data on individual knowledge, attitudes, and practices concerning antibiotics and antibiotic resistance. Multivariate analysis was used to investigate the association between demographic characteristics and knowledge, attitudes, and related behaviors. Results: Over 30% (125/400) had not received a doctor's prescription during their last illness. Seventy percent (278/ 400) had taken at least one antibiotic in the year prior to the survey. The top five frequently used antibiotics were Amoxicillin, Amoxicillin-clavulanic acid, Ampicillin, Ciprofloxacin, and Metronidazole. Women and older adults had higher knowledge compared to their respective counterparts (p < 0.01). Furthermore, prudent antibiotic use was significantly more prevalent in women than men (p < 0.05). Although no regional differences were found in overall knowledge, compared to urban residents, individuals residing in rural settings exhibited higher knowledge about the ineffectiveness of antibiotics for viruses like the cold and HIV/AIDS (p < 0.001). Two hundred and fifty-two (63%) respondents were unaware of antibiotic resistance. There was generally a low level of self-efficacy among participants regarding their role in preserving the effectiveness of antibiotics. Conclusion: Antibiotic knowledge, attitudes, and use varied significantly across demographics, suggesting a contextspecific approach to developing effective community interventions.
Environmental Science & Technology, 2020
This article is made available via the ACS COVID-19 subset for unrestricted RESEARCH re-use and a... more This article is made available via the ACS COVID-19 subset for unrestricted RESEARCH re-use and analyses in any form or by any means with acknowledgement of the original source. These permissions are granted for the duration of the World Health Organization (WHO) declaration of COVID-19 as a global pandemic.
Resources, Conservation and Recycling, 2021
Waste Electrical and Electronic Equipment (WEEE) contain toxic metals and organic compounds, posi... more Waste Electrical and Electronic Equipment (WEEE) contain toxic metals and organic compounds, posing significant threats to human health and environmental quality. The risks vary according to equipment types and components that are influenced by innovations in technical configuration and regulatory policy. To disentangle the relative impacts of these influences in protecting health and environment, we investigated 13 WEEE and 14 components using a life cycle impact assessment procedure. Additionally, we analyzed Waste Mobile Phones (WMPs) and Waste Printed Circuit Boards (WPCBs) from computers manufactured between 2002 and 2010 to identify trends of toxic chemicals and potential adverse impacts associated with technological configurations and regulatory policies. The results show that, among WEEE, Cathode Ray Tube TV presented the highest carcinogenicity and non-carcinogenicity toxicity potential. Waste Air Conditioner posed the highest potential for ecotoxicity. Among electronic components, Waste Organic Light Emitting Diode displays posed the highest potential risk for carcinogenesis, whereas WPCBs from laptop computers posed the highest potential risk for non-cancer diseases. Solid State Drives posed the highest risks for ecotoxicity. Chromium was associated with risk of carcinogenesis and non-cancer diseases; whereas Al and Fe posed the highest potential for ecotoxicological impacts. During the period covered by the study, innovations in technological configurations and regulatory policies demonstrably reduced the potential toxicity risks posed by E-waste, attributable to reduction in the concentrations of toxic organic chemicals in WMPs/WPCBs. These results advance current understanding of strategies to reduce the risks posed by WEEE through coordination of technological innovations and regulatory policies.
Journal of Environmental Planning and Management, 2007
Concerns about rapid increases in the volume of electronic waste (e-waste) and its potential toxi... more Concerns about rapid increases in the volume of electronic waste (e-waste) and its potential toxicity have sharpened policymakers' interest for extended producer responsibility to encourage manufacturers of consumer electronic devices (CEDs) to "design for the environment." This paper examines consumer willingness to pay for "green" electronics based on a 2004 mail survey of California households. Using ordered logit models, we find that significant predictors of willingness to pay for "greener" computers and cell phones include age, income, education, beliefs about the role of government for improving environmental quality, as well as environmental attitudes and behaviors, but neither gender nor political affiliation. Although most respondents are willing to pay only a 1% premium for "greener" CEDs, innovation and E.U. directives may soon make them competitive with conventional CEDs. Research on pro-environmental behavior (PEB) is another important body of literature for this paper. Economic studies tend to focus on external variables such as prices, income, education, or other demographic and socioeconomic characteristics to explain PEB (e.g., see
Engineering and economic considerations are typical driving forces behind the selection of specif... more Engineering and economic considerations are typical driving forces behind the selection of specific chemicals used in the manufacture of consumer products. Only recently has post-consumer environmental impact become part of the major considerations during the initial phases of product design. Therefore, reactive, rather than proactive strategies have dominated the consideration of environmental and health issues in product design. This study draws from case histories of national and international policies pertaining to lead (Pb) use in various industrial sectors, with the goal of producing guidelines for a predictive model of possible outcomes of international initiatives to phase out Pb from electronics products where it is primarily used in solder alloys. Data are scarce on the ultimate fate and hazards associated with Pb in discarded products, but the environmental and health effects of Pb exposure are well documented. Even less is known about the fate and effects of proposed alternatives such as silver and bismuth. Nevertheless, industrial convergence to a Pb-phase out strategy is deemed inevitable, with restrictions on the permissible local disposal of current stock of Pb-containing electronic products. To avoid the selection of hazardous alternatives, it is necessary to perform quantitative assessment of trade-offs in product reliability, recycling potential, economic costs, occupational health, and environmental quality. We identify key elements of the potential trade-offs and conclude with strategies to avoid the loop holes that have plagued similar international initiatives and legislation to phase out Pb from other industrial processes under conditions of scientific uncertainty about Pb and alternative metals.
Encyclopedia of Environmental Health, 2011
The World Health Organization's Quality of Life (WHO-QOL) survey instrument was developed thr... more The World Health Organization's Quality of Life (WHO-QOL) survey instrument was developed through an extensive process that included international and cross-cultural vetting. The result is a full version consisting of 100 questions (WHOQOL-100) organized according to six domains of QOL in facets of four questions each: environment (eight facets), level of independence (four facets), physical capacity (three facets), psychological health (five facets), social relationships (three facets), and spirituality (one facet). Additional questions focus on perception of overall QOL and general health. A brief WHO-QOL instrument was also developed, consisting of 26 questions and 4 domains (environment, physical health, psychological health, and social relationships). The level of complexity associated with the environment domain of QOL is reflected in the largest number of facets and diversity of questions included: physical safety and security; home environment; financial resources; health and social care: accessibility and quality; opportunities for acquiring new information and skills; participation in and opportunities for recreation/leisure activities; physical environment; transport. The interpretation of these facets varies considerably because they demand interdisciplinary understanding, and they have not been equally investigated. Statistical analyses demonstrate that these facets consistently cluster together, and their collective contribution to overall QOL is consistently strong.
Integrated Environmental Assessment and Management, 2017
Alternatives analysis (AA) is a method used in regulation and product design to identify, assess,... more Alternatives analysis (AA) is a method used in regulation and product design to identify, assess, and evaluate the safety and viability of potential substitutes for hazardous chemicals. It requires toxicological data for the existing chemical and potential alternatives. Predictive toxicology uses in silico and in vitro approaches, computational models, and other tools to expedite toxicological data generation in a more cost-effective manner than traditional approaches. The present article briefly reviews the challenges associated with using predictive toxicology in regulatory AA, then presents 4 recommendations for its advancement. It recommends using case studies to advance the integration of predictive toxicology into AA, adopting a stepwise process to employing predictive toxicology in AA beginning with prioritization of chemicals of concern, leveraging existing resources to advance the integration of predictive toxicology into the practice of AA, and supporting transdisciplinary efforts. The further incorporation of predictive toxicology into AA would advance the ability of companies and regulators to select alternatives to harmful ingredients, and potentially increase the use of predictive toxicology in regulation more broadly.
Abstract: Attention Deficit/Hyperactivity Disorder (ADHD) affects 5%–8 % of children in the U.S. ... more Abstract: Attention Deficit/Hyperactivity Disorder (ADHD) affects 5%–8 % of children in the U.S. (10 % of males and 4 % of females). The contributions of multiple metal exposures to the childhood behavioral deficits are unclear, although particular metals have been implicated through their neurotoxicity. The objective of this study was to test the hypothesis that the body burden of Mn is positively correlated with ADHD symptoms. We also investigated the putative roles of Ca, Fe, Pb, and Hg. We collected shed molars from 266 children (138 boys and 128 girls) who lost a tooth between 11 and 13 years of age. The molars were analyzed for metals using ICP-OES. The third grade teacher of each child completed the Teacher’s Disruptive Behavior Disorders Rating Scale (DBD) to produce a score for “Total Disruptive Behavior ” and subscale scores for “Attention Deficit Hyperactivity Disorder”, Hyperactivity/Impulsivity, Inattention, and Oppositional/Defiant. The mean Mn, Fe, Pb and Ca concentra...
The pervasiveness of human health impacts and ecosystem effects of lead (Pb) is not controversial... more The pervasiveness of human health impacts and ecosystem effects of lead (Pb) is not controversial, but there are serious arguments about the pace at which Pb should be eliminated from consumer products. Presumably, these arguments can be resolved by converting costs and benefits of Pb use to similar units, a notorious methodological challenge for health impacts in developing countries. To estimate the costs of Pb poisoning attributable to petrochemicals in Nigeria, we conducted a meta-analysis of measured blood lead levels (BLL) and we used published Relative Risk values for disease categories to estimate the proportion of overall disease burden attributable to Pb. We modeled the health costs of Pb exposure and we compared this to the cost of banning Pb. We estimate that Pb exposure accounts for 7- 25 % of the disease burden among Nigerian children, costing the health and education sectors $0.38 – 1.15 billion year-1 for every 1 µg/dL increase in BLL. In comparison, we estimate that...
The pervasiveness of human health impacts and ecosystem effects of lead (Pb) is not controversial... more The pervasiveness of human health impacts and ecosystem effects of lead (Pb) is not controversial, but there are serious arguments about the pace at which Pb should be eliminated from consumer products. Presumably, these arguments can be resolved by converting costs and benefits of Pb use to similar units, a notorious methodological challenge for health impacts in developing countries. To estimate the costs of Pb poisoning attributable to petrochemicals in Nigeria, we conducted a meta-analysis of measured blood lead levels (BLL) and we used published Relative Risk values for disease categories to estimate the proportion of overall disease burden attributable to Pb. We modeled the health costs of Pb exposure and we compared this to the cost of banning Pb. We estimate that Pb exposure accounts for 7 - 25% of the disease burden among Nigerian children, costing the health and education sectors $0.38 – 1.15 billion year -1 for every 1 μ g/dL increase in BLL. In comparison, we estimate th...
The goal of this paper is to estimate the health impacts resulting from exposure to PM and NOx em... more The goal of this paper is to estimate the health impacts resulting from exposure to PM and NOx emitted by train operations in the Alameda corridor, a crucial rail link that serves the Ports of Los Angeles and Long Beach, also known as the San Pedro Bay Ports (SPBP). We link a pollutant dispersion model (CalPUFF) to a health benefits assessment model (BenMAP) to discover population-based health impacts of PM and NOx emissions from train operations (switching and line haul). After analyzing year 2005 as our baseline, we consider two scenarios that correspond to switching to Tier 2 and Tier 3 locomotives. We find that mortality from PM exposure accounts for the largest health impacts, with health costs in excess of $40 million annually. A shift to Tier 2 locomotives would save approximately half of the annual health costs but the benefits of shifting from Tier 2 to Tier 3 locomotives would be much smaller. This assessment is only partial, however, because of gaps in available health da...
Author(s): Ogunseitan, O | Abstract: © 2005 by Blackwell Science Ltd. All rights reserved. This b... more Author(s): Ogunseitan, O | Abstract: © 2005 by Blackwell Science Ltd. All rights reserved. This book offers the first comprehensive, in-depth treatment of microbial diversity for undergraduate and graduate students. Using a global approach, Microbial Diversity illustrates the impact of microorganisms on ecological and Earth system phenomena. Accompanied by a devoted website with resources for both instructors and students: www.blackwellpublishing.com/ogunseitan Uses key ecological and global phenomena to show the continuity of microbial contribution. Illustrates the importance of microbial diversity for the understanding of global physiochemical and biological processes. Presents analyses of microscopic, culture, molecular, and phylogenetic systematic methods. Shows the relevance of microbial diversity to global environmental problems, such as climate change and ozone depletion. Features numerous illustrations, including over 60 4-color photographs of microbes.
Journal of Global Health Reports
Background Background Increasing resistance of bacterial infections to current treatment threaten... more Background Background Increasing resistance of bacterial infections to current treatment threatens to derail progress made to reduce the global burden of diseases. Inadequate knowledge about prudent use of antibiotics is considered a determinant of increasing risks of antibiotic resistance. However, there is insufficient research on effective ways to target information that could increase public knowledge toward improvement of antibiotics stewardship. The aim of this study was to assess the association between knowledge and use of antibiotics in Ghana. Methods Methods Four hundred residents of the Greater Accra and Upper West regions of Ghana, aged 18 years and older, who had previously used antibiotics, completed a standardized questionnaire survey during the months of September-October 2018. The survey collected information on individual knowledge, attitudes, and practices related to antibiotics and antibiotic resistance. Principal component and multivariate analyses were conducted to determine the different components of knowledge and their association with antibiotic use. Results Results Two main principal components were identified; (i) knowledge about treatment of common illnesses (ii) knowledge about prudent use of antibiotics. There was a significant association between gender and the first component, with women having higher knowledge about the treatment of malaria, headaches, and body aches (beta, b= 0.25; P<0.05; 95% confidence interval, CI=0.01-0.48). Similarly, older individuals aged 25-54 years scored significantly higher than the referent 18-24-year group. The second component revealed significant differences in age, education, and residence, with older adults, persons with higher educational attainment, and Greater Accra residents exhibiting better knowledge about the prudent use of antibiotics for bacterial infections. Likewise, the odds of using antibiotics appropriately was 1.4 times higher for individuals with knowledge about the prudent use of antibiotics (adjusted odds ratio, AOR=1.40; P<0.01; 95% CI=1.15-1.69). Participants who had received a medical prescription during the last occurrence of illness had better knowledge about the treatment of gonorrhea and bladder/urinary tract infections and were knowledgeable about the risks of sharing and buying antibiotics, compared to individuals who had not received a prescription. Conclusions Conclusions Age, gender, residence, education, as well as experience with antibiotics therapy were identified as determinants associated with knowledge of antibiotics and their uses, thereby providing opportunities to improve community-level antibiotics stewardship. Therapy with antibiotics against pathogenic bacteria has saved millions of lives worldwide. However, antibiotic resistance is becoming an increasingly major concern for global health given its potential to derail advances made to control the spread of resistant pathogens. 1-6 Bacteria are gradually developing resistance to multiple antibiotics, 5,7-9 making it impossible to cure infections using standard protocols. Adverse consequences include high medical costs, risks of disease complications, prolonged hospitalization which further increase the chances of contracting nosocomial infections and death. 6,10 Recent projections indicate high antimicrobial resistance-related mortality rates, with Jimah T, Ogunseitan O. Socio-demographic characteristics of the association between knowledge of antibiotic therapy and prudent use in Ghana.
Environment international, 2018
Environment international, Jan 5, 2016
Rapid innovation in printed circuit board, and the uncertainties surrounding quantification of th... more Rapid innovation in printed circuit board, and the uncertainties surrounding quantification of the human and environmental health impacts of e-waste disposal have made it difficult to confirm the influence of evolving e-waste management strategies and regulatory policies on materials. To assess these influences, we analyzed hazardous chemicals in a market-representative set of Waste printed circuit boards (WPCBs, 1996-2010). We used standard leaching tests to characterize hazard potential and USEtox® to project impacts on human health and ecosystem. The results demonstrate that command-and-control regulations have had minimal impacts on WPCBs composition and toxicity risks; whereas technological innovation may have been influenced more by resource conservation, including a declining trend in the use of precious metals such as gold. WPCBs remain classified as hazardous under U.S. and California laws because of excessive toxic metals. Lead poses the most significant risk for cancers; ...
Desalination and Water Treatment, 2016
In this work, bentonite (Bent) and poly(acrylic acid)-bentonite (PAA-Bent) hybrid were applied fo... more In this work, bentonite (Bent) and poly(acrylic acid)-bentonite (PAA-Bent) hybrid were applied for the removal of Lead (Pb) from aqueous solutions. Sorption experiments were conducted under batch condition at different times, Pb concentrations, and temperatures. Equilibrium studies showed that Pb sorption data on PAA-Bent followed the Langmuir model. Both capacity and affinity of PAA-Bent and Bent for Pb retention increased with rising temperature. Maximum capacity (q m) of PAA-Bent for Pb sorption was 91.88 mg g −1 at 15˚C which increased to 96.13 mg g −1 at 50˚C. For the Bent sample, the q m values were 52.31 and 82.51 mg g −1 , respectively, at 15 and 50˚C. The Langmuir Pb sorption affinity parameter (K L) was increased from 0.12 to 2.25 L mg −1 for PAA-Bent and from 0.009 to 1.19 L mg −1 for Bent, as temperature rose from 15 to 50˚C. Pseudo-first and pseudo-second-order kinetic models could best describe the time-dependent Pb sorption data by the PAA-Bent which occurred at a fast rate approaching equilibrium within~30-60 min. For the Bent sample, the Elovich model was the best fitted model to the Pb sorption data. Calculation of thermodynamic parameters including Gibbs free energy changes (ΔG˚= −20.07 to −40.63 kJ mol −1), enthalpy change (ΔH˚= 146.359 kJ mol −1), and entropy change (ΔS˚= 578.42 J mol −1 K −1) showed that Pb sorption on the PAA-Bent is more spontaneous, endothermic, and favored as compared to Pb sorption process on the Bent with ΔG˚=-19.51 to −30.44 kJ mol −1 , ΔH˚= 70.02 kJ mol −1 and ΔS˚= 310.94 J mol −1 K −1. In conclusion, the PAA-Bent hybrid sorbent can be considered as a suitable candidate for the removal of Pb from aqueous solutions.
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Papers by Oladele Ogunseitan