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Muñoz-Soto VD, Dávila-Gálvez S, Pérez AE, Rojo-González L, Valenzuela-Levi N, Vásquez ÓC. COVID-19, waste production and municipal recycling programs: Insights from Chile to the global south. THE SCIENCE OF THE TOTAL ENVIRONMENT 2023; 899:165388. [PMID: 37454859 DOI: 10.1016/j.scitotenv.2023.165388] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/03/2023] [Revised: 06/21/2023] [Accepted: 07/06/2023] [Indexed: 07/18/2023]
Abstract
The amount and characterization of municipal and industrial waste generated in numerous cities worldwide have changed dramatically in recent years due to the COVID-19 pandemic. Consequently, assessing the impact of COVID-19-related policies is important to provide decision-makers with adequate knowledge to respond effectively to future events and create successful policies that respond to specific contexts. This study focuses on Chile, Latin America's second-largest municipal and industrial solid waste producer, with tight quarantine procedures placed to prevent the virus from spreading, and a series of monetary incentives implemented to minimize the economic and social impact of the quarantines. The time series of municipal solid waste (MSW) and recycling in the metropolitan region show a decrease in the amount collected during the initial months of lockdown and a subsequent increase during monetary incentive implementation. The country recovered and exceeded pre-pandemic MSW generation and recycling levels. Furthermore, the lockdown and the withdrawal of retirement funds (WRF) had a varied impact on each municipality in the region. However, WRF had a larger direct impact than a lockdown, indicating that purchasing power has a greater impact than mobility in waste generation and recycling, at least in this region of Chile.
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Affiliation(s)
- Valeria D Muñoz-Soto
- Industrial Engineering Department, Faculty of Engineering, University of Santiago of Chile (USACH), Chile
| | - Sebastián Dávila-Gálvez
- Program for the Development of Sustainable Production Systems (PDSPS), Faculty of Engineering, University of Santiago of Chile (USACH), Chile; Industrial Engineering Department, Faculty of Engineering, University of Santiago of Chile (USACH), Chile.
| | - Andrea Espinoza Pérez
- Program for the Development of Sustainable Production Systems (PDSPS), Faculty of Engineering, University of Santiago of Chile (USACH), Chile; Industrial Engineering Department, Faculty of Engineering, University of Santiago of Chile (USACH), Chile
| | - Luis Rojo-González
- Program for the Development of Sustainable Production Systems (PDSPS), Faculty of Engineering, University of Santiago of Chile (USACH), Chile; Industrial Engineering Department, Faculty of Engineering, University of Santiago of Chile (USACH), Chile; Centre Interuniversitaire de Recherche sur les Réseaux d'Entreprise, la Logistique et le Transport (CIRRELT) and Département de Mathématiques et de Génie industriel, Polytechnique Montréal, 2500 Chemin de Polytechnique, Montréal, H3C 3A7, Quebec, Canada
| | | | - Óscar C Vásquez
- Program for the Development of Sustainable Production Systems (PDSPS), Faculty of Engineering, University of Santiago of Chile (USACH), Chile; Industrial Engineering Department, Faculty of Engineering, University of Santiago of Chile (USACH), Chile
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Derdera SE, Ogato GS. Towards integrated, and sustainable municipal solid waste management system in Shashemane city administration, Ethiopia. Heliyon 2023; 9:e21865. [PMID: 38027681 PMCID: PMC10663929 DOI: 10.1016/j.heliyon.2023.e21865] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/25/2023] [Revised: 10/28/2023] [Accepted: 10/30/2023] [Indexed: 12/01/2023] Open
Abstract
Solid waste generation is attested to be unavoidable product of human activities. Sustainable management of such waste is a pressing challenge faced in many developing countries today. The study was motivated by the fast growing population and the inefficient waste management system threatening the public health and the image of Shashemene city in Ethiopia. The objectives of the study were: to explore the existing household solid waste management practices, to examine the current governance system of municipal solid waste management, to investigate the contemporary challenges and opportunities of municipal solid waste management, and forward integrated and sustainable municipal solid waste management system for Shashemene city. Data were collected from sampled households, key informants, focus groups, and the city's environment. Data were analyzed by employing quantitative and qualitative methods. 94.8 % of the respondents opined that the solid waste generated in their city is organic in nature (Ash, and sweeps; leftover food, and vegetable peels; paper, and cardboards; green leaves, and grass; and cattle dung). 96.7 % of respondent households opined that they have temporary waste storage in their yards and trash bags were asserted to be widely used (87.6 %) in handling the trash in the courtyard. The waste sorting and recovering practices among the residents is very low and is certainly the major cause for inefficient and unsustainable management system of municipal solid waste in Shashemene city. Generally, a grand mean of 2.23 confirmed the absence of good governance in municipal solid waste management system in Shashemene city. Moreover, the significant proportion of responses ( ≥ 50 %) for each of the nine principles of good governance as either poor or very poor asserted governance failure of the municipal solid waste management system in Shashemene city. The results of the study confirmed that low public awareness on waste management; inadequate collection capacity; poor integration and coordination of stakeholders; environmentally unsound dump site; and illegal dumping by key stakeholders are the major challenges underpinning the unsustainable municipal solid waste management in the city. It is recommended that Shashemene city must adopt integrated sustainable municipal solid waste management system to substantially enhance the waste management service in the city leading to ultimate advancement of public health and environmental quality.
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Affiliation(s)
- Senbet Elmo Derdera
- Former Student at College of Business and Economics, Department of Public Administration and Development Management, Ambo University, Ethiopia
| | - Gemechu Shale Ogato
- Guder Mamo Mezemir Campus, School of Agricultural Economics, and Rural Development, Department of Rural Development, and Agricultural Extension, Ambo University, Ethiopia
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Ramalingam M, Jaisankar A, Cheng L, Krishnan S, Lan L, Hassan A, Sasmazel HT, Kaji H, Deigner HP, Pedraz JL, Kim HW, Shi Z, Marrazza G. Impact of nanotechnology on conventional and artificial intelligence-based biosensing strategies for the detection of viruses. DISCOVER NANO 2023; 18:58. [PMID: 37032711 PMCID: PMC10066940 DOI: 10.1186/s11671-023-03842-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/19/2023] [Accepted: 03/28/2023] [Indexed: 04/05/2023]
Abstract
Recent years have witnessed the emergence of several viruses and other pathogens. Some of these infectious diseases have spread globally, resulting in pandemics. Although biosensors of various types have been utilized for virus detection, their limited sensitivity remains an issue. Therefore, the development of better diagnostic tools that facilitate the more efficient detection of viruses and other pathogens has become important. Nanotechnology has been recognized as a powerful tool for the detection of viruses, and it is expected to change the landscape of virus detection and analysis. Recently, nanomaterials have gained enormous attention for their value in improving biosensor performance owing to their high surface-to-volume ratio and quantum size effects. This article reviews the impact of nanotechnology on the design, development, and performance of sensors for the detection of viruses. Special attention has been paid to nanoscale materials, various types of nanobiosensors, the internet of medical things, and artificial intelligence-based viral diagnostic techniques.
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Affiliation(s)
- Murugan Ramalingam
- grid.411292.d0000 0004 1798 8975School of Basic Medical Sciences, Clinical Medical College & Affiliated Hospital, Chengdu University, Chengdu, 610106 China
- grid.411982.70000 0001 0705 4288Institute of Tissue Regeneration Engineering, Dankook University, Cheonan, 31116 Republic of Korea
- grid.411982.70000 0001 0705 4288Department of Nanobiomedical Science, Dankook University, Cheonan, 31116 Republic of Korea
- grid.411982.70000 0001 0705 4288BK21 NBM Global Research Center for Regenerative Medicine, Dankook University, Cheonan, 31116 Republic of Korea
- grid.411982.70000 0001 0705 4288Mechanobiology Dental Medicine Research Center, Dankook University, Cheonan, 31116 Republic of Korea
- grid.411982.70000 0001 0705 4288UCL Eastman-Korea Dental Medicine Innovation Centre, Dankook University, Cheonan, 31116 South Korea
- grid.440424.20000 0004 0595 4604Department of Metallurgical and Materials Engineering, Faculty of Engineering, Atilim University, 06836 Ankara, Turkey
| | - Abinaya Jaisankar
- grid.412813.d0000 0001 0687 4946Centre for Biomaterials, Cellular and Molecular Theranostics, School of Mechanical Engineering, Vellore Institute of Technology, Vellore, 632014 India
| | - Lijia Cheng
- grid.411292.d0000 0004 1798 8975School of Basic Medical Sciences, Clinical Medical College & Affiliated Hospital, Chengdu University, Chengdu, 610106 China
| | - Sasirekha Krishnan
- grid.412813.d0000 0001 0687 4946Centre for Biomaterials, Cellular and Molecular Theranostics, School of Mechanical Engineering, Vellore Institute of Technology, Vellore, 632014 India
| | - Liang Lan
- grid.411292.d0000 0004 1798 8975School of Basic Medical Sciences, Clinical Medical College & Affiliated Hospital, Chengdu University, Chengdu, 610106 China
| | - Anwarul Hassan
- grid.412603.20000 0004 0634 1084Department of Mechanical and Industrial Engineering, Biomedical Research Center, Qatar University, 2713, Doha, Qatar
| | - Hilal Turkoglu Sasmazel
- grid.440424.20000 0004 0595 4604Department of Metallurgical and Materials Engineering, Faculty of Engineering, Atilim University, 06836 Ankara, Turkey
| | - Hirokazu Kaji
- grid.265073.50000 0001 1014 9130Department of Biomechanics, Institute of Biomaterials and Bioengineering, Tokyo Medical and Dental University, Tokyo, 101-0062 Japan
| | - Hans-Peter Deigner
- grid.21051.370000 0001 0601 6589Institute of Precision Medicine, Medical and Life Sciences Faculty, Furtwangen University, 78054 Villingen-Schwenningen, Germany
| | - Jose Luis Pedraz
- grid.11480.3c0000000121671098NanoBioCel Group, Laboratory of Pharmaceutics, School of Pharmacy, University of the Basque Country, 01006 Vitoria-Gasteiz, Spain
- Biomedical Research Networking Centre in Bioengineering, Biomaterials and Nanomedicine, 28029 Madrid, Spain
| | - Hae-Won Kim
- grid.411982.70000 0001 0705 4288Institute of Tissue Regeneration Engineering, Dankook University, Cheonan, 31116 Republic of Korea
- grid.411982.70000 0001 0705 4288Department of Nanobiomedical Science, Dankook University, Cheonan, 31116 Republic of Korea
- grid.411982.70000 0001 0705 4288BK21 NBM Global Research Center for Regenerative Medicine, Dankook University, Cheonan, 31116 Republic of Korea
- grid.411982.70000 0001 0705 4288Mechanobiology Dental Medicine Research Center, Dankook University, Cheonan, 31116 Republic of Korea
- grid.411982.70000 0001 0705 4288UCL Eastman-Korea Dental Medicine Innovation Centre, Dankook University, Cheonan, 31116 South Korea
| | - Zheng Shi
- grid.411292.d0000 0004 1798 8975School of Basic Medical Sciences, Clinical Medical College & Affiliated Hospital, Chengdu University, Chengdu, 610106 China
| | - Giovanna Marrazza
- grid.8404.80000 0004 1757 2304Department of Chemistry “Ugo Schiff”, University of Florence, 50019 Sesto Fiorentino, Florence, Italy
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