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  1. Article ; Online: Environmental issues and challenges confronting surface waters in South America

    Temitope D. Timothy Oyedotun / Nasrudeen Ally

    Environmental Challenges, Vol 3, Iss , Pp 100049- (2021)

    A review

    2021  

    Abstract: This study entailed a review of 80 scientific articles on different environmental issues and challenges confronting the rivers, streams and running water in South America. The diversity of issues identified in the review is categorised based on themes ... ...

    Abstract This study entailed a review of 80 scientific articles on different environmental issues and challenges confronting the rivers, streams and running water in South America. The diversity of issues identified in the review is categorised based on themes that were widely addressed in the studies. Six themes of these are grouped into the following categories: pollution; contamination; climate changes, global warming and/or drought; anthropogenic/human impacts, urbanisation, land use; sedimentation and flooding. Pollution and contamination are the most environmental issues addressed by most of the research work reviewed in this study. These are followed by the impacts of climate vulnerabilities and anthropogenic activities, sedimentation and flooding respectively. These issues transcend one single country but cut across many countries in the continent. This review provides useful information and synthesised insights that support current and future bibliography queries, research and studies of rivers and streams of South America. It is also noted here that both indices of natural and anthropogenic processes are dictating various environmental challenges confronting surface water systems. The knowledge of the processes and their effects are very important if a proper plan is to be made in addressing those challenges. It is expected that this study serves as a resource for understanding the dynamics of different surface water systems of the continent and as filling the knowledge gap on synthesising the various environmental issues affecting the surface water systems.
    Keywords Climate Change ; Contamination ; Drought ; Pollution ; Sedimentation ; Surface Water ; Environmental sciences ; GE1-350
    Subject code 333
    Language English
    Publishing date 2021-04-01T00:00:00Z
    Publisher Elsevier
    Document type Article ; Online
    Database BASE - Bielefeld Academic Search Engine (life sciences selection)

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  2. Article ; Online: Household waste generation, change in waste composition and the exposure to COVID-19 in Guyana and Nigeria

    Oluwasinaayomi Faith Kasim / Temitope D. Timothy Oyedotun / Ayomide Famewo / Temitayo Deborah Oyedotun / Stephan Moonsammy / Nasrudeen Ally / Donna-Marie Renn-Moonsammy

    Scientific African, Vol 14, Iss , Pp e01060- (2021)

    2021  

    Abstract: The COVID-19 pandemic has disrupted humans’ activities across the globe. Measures related to social/physical distancing and lockdown have led to a shift and increase in waste generated at households’ level. This study examined waste generation, ... ...

    Abstract The COVID-19 pandemic has disrupted humans’ activities across the globe. Measures related to social/physical distancing and lockdown have led to a shift and increase in waste generated at households’ level. This study examined waste generation, composition and the implications for exposure during COVID-19 pandemic lockdown in Guyana and Nigeria. The study adopted a mixed-method design to collect qualitative and quantitative data. Owing to adherence to social/physical distancing, an online Google Form survey was administered and phone interviews were conducted with waste managers in Nigeria and Guyana. Findings showed that the volumes of waste had increased and there was a mixture of Personal Protective Equipment (PPE) with the municipal waste. Also, the majority of the respondents in both countries were concerned that solid waste has the potential to contribute to contamination and spreading of the pandemic. A paired sample T-test analysis indicated an increase in the use of PPE. The values of t = 19.46 and t = 23.73 at p ≥ 0.05 in Nigeria and Guyana, respectively were significant. Waste mostly contaminated, as submitted by the respondents, were cans, bottles, plastics and all biodegradable wastes while the most probable point of contamination as noted by the waste managers occurred at the point of waste collection. Therefore, sorting of waste at household levels and training of personnel involved in waste management should be done with an emphasis on adherence to COVID-19 protocol and enforcement of same to prevent the spread of the virus
    Keywords COVID-19 pandemic and lockdown ; Waste managers and handlers ; Personal protective equipment ; Waste contamination ; Waste composition in Guyana and Nigeria ; Science ; Q
    Subject code 650
    Language English
    Publishing date 2021-11-01T00:00:00Z
    Publisher Elsevier
    Document type Article ; Online
    Database BASE - Bielefeld Academic Search Engine (life sciences selection)

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  3. Article ; Online: Municipal waste management in the era of COVID-19

    Temitope D. Timothy Oyedotun / Oluwasinaayomi Faith Kasim / Ayomide Famewo / Temitayo Deborah Oyedotun / Stephan Moonsammy / Nasrudeen Ally / Donna-Marie Renn-Moonsammy

    Research in Globalization, Vol 2, Iss , Pp 100033- (2020)

    Perceptions, practices, and potentials for research in developing countries

    2020  

    Abstract: The novel COVID-19 pandemic has significantly impacted all facets of society globally. Often overlooked is the potential contamination of the waste disposed by individuals diagnosed with the virus. The proliferation of contaminated waste is expected to ... ...

    Abstract The novel COVID-19 pandemic has significantly impacted all facets of society globally. Often overlooked is the potential contamination of the waste disposed by individuals diagnosed with the virus. The proliferation of contaminated waste is expected to increase as cases increase. The pandemic has caused a surge in waste material stemming from the widespread use of disposable personal protective equipment at the household level. In the developing countries where waste management measures are relatively inadequate, the vulnerability of COVID-19 contraction from contaminated waste is high. This study intended to unravel the susceptibility of communities in the developing countries of Guyana and Nigeria to the potential spread of the virus through waste. The study explored the possibility of cross-contamination between residents and landfill scavengers, the community perception on the effectiveness of their solid waste practices, the notable changes in waste collection and waste disposal patterns, and also, the potential knowledge / policy gaps that exist. An online survey was administered within all the districts of the two countries and the qualitative assessment was conducted demonstrating the proportional trends in the responses of the participants. Findings showed that the communities were relatively perceptive about the issue of waste disposal and the potential contamination of COVID-19. The communities readily recognized the inefficiencies of the waste management systems and the need for policy intervention. Tackling the issue of COVID-19 and waste management in the developing countries of Guyana and Nigeria requires policies that are holistic and participatory involving stakeholder at all levels.
    Keywords Solid wastes ; COVID-19 ; Waste collection ; Waste dumps ; Contamination ; Household wastes ; Cities. Urban geography ; GF125 ; Urbanization. City and country ; HT361-384
    Subject code 710
    Language English
    Publishing date 2020-12-01T00:00:00Z
    Publisher Elsevier
    Document type Article ; Online
    Database BASE - Bielefeld Academic Search Engine (life sciences selection)

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