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  1. Article ; Online: Estimating marine plastic pollution from COVID-19 face masks in coastal regions.

    Chowdhury, Hemal / Chowdhury, Tamal / Sait, Sadiq M

    Marine pollution bulletin

    2021  Volume 168, Page(s) 112419

    Abstract: Face masks are playing an essential role in preventing the spread of COVID-19. Face masks such as N95, and surgical masks, contain a considerable portion of non-recyclable plastic material. Marine plastic pollution is likely to increase due to the rapid ... ...

    Abstract Face masks are playing an essential role in preventing the spread of COVID-19. Face masks such as N95, and surgical masks, contain a considerable portion of non-recyclable plastic material. Marine plastic pollution is likely to increase due to the rapid use and improper dispensing of face masks, but until now, no extensive quantitative estimation exists for coastal regions. Linking behaviour dataset on face mask usage and solid waste management dataset, this study estimates annual face mask utilization and plastic pollution from mismanaged face masks in coastal regions of 46 countries. It is estimated that approximately 0.15 million tons to 0.39 million tons of plastic debris could end up in global oceans within a year. With lower waste management facilities, the number of plastic debris entering the ocean will rise. Significant investments are required from global communities in improving the waste management facilities for better disposal of masks and solid waste.
    MeSH term(s) COVID-19 ; Humans ; Masks ; Oceans and Seas ; Plastics ; SARS-CoV-2
    Chemical Substances Plastics
    Language English
    Publishing date 2021-04-24
    Publishing country England
    Document type Journal Article
    ZDB-ID 2001296-2
    ISSN 1879-3363 ; 0025-326X
    ISSN (online) 1879-3363
    ISSN 0025-326X
    DOI 10.1016/j.marpolbul.2021.112419
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  2. Article: Estimating marine plastic pollution from COVID-19 face masks in coastal regions

    Chowdhury, Hemal / Chowdhury, Tamal / Sait, Sadiq M

    Marine pollution bulletin. 2021 July, v. 168

    2021  

    Abstract: Face masks are playing an essential role in preventing the spread of COVID-19. Face masks such as N95, and surgical masks, contain a considerable portion of non-recyclable plastic material. Marine plastic pollution is likely to increase due to the rapid ... ...

    Abstract Face masks are playing an essential role in preventing the spread of COVID-19. Face masks such as N95, and surgical masks, contain a considerable portion of non-recyclable plastic material. Marine plastic pollution is likely to increase due to the rapid use and improper dispensing of face masks, but until now, no extensive quantitative estimation exists for coastal regions. Linking behaviour dataset on face mask usage and solid waste management dataset, this study estimates annual face mask utilization and plastic pollution from mismanaged face masks in coastal regions of 46 countries. It is estimated that approximately 0.15 million tons to 0.39 million tons of plastic debris could end up in global oceans within a year. With lower waste management facilities, the number of plastic debris entering the ocean will rise. Significant investments are required from global communities in improving the waste management facilities for better disposal of masks and solid waste.
    Keywords COVID-19 infection ; data collection ; face ; face masks ; marine pollution ; solid wastes ; waste management
    Language English
    Dates of publication 2021-07
    Publishing place Elsevier Ltd
    Document type Article
    Note NAL-AP-2-clean
    ZDB-ID 2001296-2
    ISSN 1879-3363 ; 0025-326X
    ISSN (online) 1879-3363
    ISSN 0025-326X
    DOI 10.1016/j.marpolbul.2021.112419
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  3. Article ; Online: Are mega-events super spreaders of infectious diseases similar to COVID-19? A look into Tokyo 2020 Olympics and Paralympics to improve preparedness of next international events

    Chowdhury, Tamal / Chowdhury, Hemal / Bontempi, Elza / Coccia, Mario / Masrur, Hasan / Sait, Sadiq M. / Senjyu, Tomonobu

    Environ Sci Pollut Res. 2023 Jan., v. 30, no. 4 p.10099-10109

    2023  

    Abstract: Tokyo Summer Olympics and Paralympics have raised social issues regarding the potential rise in COVID-19 cases in Japan and risks associated with the safe organization of mega sporting events during the pandemic, such as the FIFA World Cup Qatar 2022. ... ...

    Abstract Tokyo Summer Olympics and Paralympics have raised social issues regarding the potential rise in COVID-19 cases in Japan and risks associated with the safe organization of mega sporting events during the pandemic, such as the FIFA World Cup Qatar 2022. This study investigates the Tokyo Summer Olympics as a unique case study to clarify the drivers of infectivity and provide guidelines to host countries for the safe organization of subsequent international sporting events. The result here reveals that Tokyo and Japan did not experience a rise in confirmed cases of COVID-19 due to the hosting of the Summer Olympics. Still, transmission dynamics seems to be mainly driven by the high density of population (about 1.2%, p-value <0.001) like other larger cities in Japan (result confirmed with Mann-Whitney U test, significance at 0.05). Our study provided evidence that hosting mega sporting events during this COVID-19 pandemic is safe if strictly maintained the precautions with non-pharmaceutical (and pharmaceutical) measures of control of infections. The Tokyo Summer Olympics hosting will be exemplary for next international events due to the successful implementation of preventive measures during COVID-19 pandemic crisis.
    Keywords COVID-19 infection ; Japan ; case studies ; pandemic ; pathogenicity ; sports ; Qatar
    Language English
    Dates of publication 2023-01
    Size p. 10099-10109.
    Publishing place Springer Berlin Heidelberg
    Document type Article ; Online
    ZDB-ID 1178791-0
    ISSN 1614-7499 ; 0944-1344
    ISSN (online) 1614-7499
    ISSN 0944-1344
    DOI 10.1007/s11356-022-22660-2
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  4. Article: A simulation study of techno-economics and resilience of the solar PV irrigation system against grid outages

    Chowdhury, Hemal / Chowdhury, Tamal / Rahman, Md Salman / Masrur, Hasan / Senjyu, Tomonobu

    Environmental science and pollution research. 2022 Sept., v. 29, no. 43

    2022  

    Abstract: Water is the most fundamental need for better yield in agriculture. Worldwide, diesel and electricity are typically used to pump water which contributes to atmospheric pollution. Besides, a power outage affects the irrigation process badly. Without water, ...

    Abstract Water is the most fundamental need for better yield in agriculture. Worldwide, diesel and electricity are typically used to pump water which contributes to atmospheric pollution. Besides, a power outage affects the irrigation process badly. Without water, the crop may wither away, causing a substantial economic loss. This paper discusses the resilience of a solar PV system during a power outage. HOMER Pro software was used to perform the techno-economic analysis of solar-based irrigation for four major divisions of Bangladesh, while 1-hour power outage was assigned in REopt lite to model the survivability of the system against the grid outage. The simulation outcomes showed that the energy cost is $0.1496/kWh, $0.1502/kWh, $0.1557/kWh, and $0.1576/kWh for Rajshahi, Sylhet, Dhaka, and Chattogram, respectively. About 45% of excess electricity can be stored after fulfilling all requirements. The system is more economical than a microgrid-based water pumping system and a diesel-based system, and the photovoltaic system is technically and economically suitable to pump water if the nearest grid connection is impossible. When connected to the main utility grid, the system can survive without grid power for several hours, subject to daytime outages.
    Keywords air pollution ; computer software ; electricity ; energy costs ; financial economics ; irrigation systems ; research ; solar collectors ; Bangladesh
    Language English
    Dates of publication 2022-09
    Size p. 64846-64857.
    Publishing place Springer Berlin Heidelberg
    Document type Article
    ZDB-ID 1178791-0
    ISSN 1614-7499 ; 0944-1344
    ISSN (online) 1614-7499
    ISSN 0944-1344
    DOI 10.1007/s11356-022-20339-2
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  5. Article ; Online: Estimation of the healthcare waste generation during COVID-19 pandemic in Bangladesh

    Chowdhury, Tamal / Chowdhury, Hemal / Rahman, Md Salman / Hossain, Nazia / Ahmed, Ashfaq / Sait, Sadiq M.

    Science of the Total Environment. 2022 Mar., v. 811 p.152295-

    2022  

    Abstract: COVID-19 pandemic-borne wastes imposed a severe threat to human lives as well as the total environment. Improper handling of these wastes increases the possibility of future transmission. Therefore, immediate actions are required from both local and ... ...

    Abstract COVID-19 pandemic-borne wastes imposed a severe threat to human lives as well as the total environment. Improper handling of these wastes increases the possibility of future transmission. Therefore, immediate actions are required from both local and international authorities to mitigate the amount of waste generation and ensure proper disposal of these wastes, especially for low-income and developing countries where solid waste management is challenging. In this study, an attempt is made to estimate healthcare waste generated during the COVID-19 pandemic in Bangladesh. This study includes infected, ICU, deceased, isolated and quarantined patients as the primary sources of medical waste. Results showed that COVID-19 medical waste from these patients was 658.08 tons in March 2020 and increased to 16,164.74 tons in April 2021. A top portion of these wastes was generated from infected and quarantined patients. Based on survey data, approximate daily usage of face masks and hand gloves is also determined. Probable waste generation from COVID-19 confirmatory tests and vaccination has been simulated. Finally, several guidelines are provided to ensure the country's proper disposal and management of COVID-related wastes.
    Keywords COVID-19 infection ; environment ; face ; health services ; humans ; solid wastes ; surveys ; vaccination ; waste management ; Bangladesh ; Biomedical waste management ; Environmental and public health ; Face masks ; Solid waste management
    Language English
    Dates of publication 2022-03
    Publishing place Elsevier B.V.
    Document type Article ; Online
    ZDB-ID 121506-1
    ISSN 1879-1026 ; 0048-9697
    ISSN (online) 1879-1026
    ISSN 0048-9697
    DOI 10.1016/j.scitotenv.2021.152295
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    Z 74/341: Show issues

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  6. Article ; Online: A simulation study of techno-economics and resilience of the solar PV irrigation system against grid outages.

    Chowdhury, Hemal / Chowdhury, Tamal / Rahman, Md Salman / Masrur, Hasan / Senjyu, Tomonobu

    Environmental science and pollution research international

    2022  Volume 29, Issue 43, Page(s) 64846–64857

    Abstract: Water is the most fundamental need for better yield in agriculture. Worldwide, diesel and electricity are typically used to pump water which contributes to atmospheric pollution. Besides, a power outage affects the irrigation process badly. Without water, ...

    Abstract Water is the most fundamental need for better yield in agriculture. Worldwide, diesel and electricity are typically used to pump water which contributes to atmospheric pollution. Besides, a power outage affects the irrigation process badly. Without water, the crop may wither away, causing a substantial economic loss. This paper discusses the resilience of a solar PV system during a power outage. HOMER Pro software was used to perform the techno-economic analysis of solar-based irrigation for four major divisions of Bangladesh, while 1-hour power outage was assigned in REopt lite to model the survivability of the system against the grid outage. The simulation outcomes showed that the energy cost is $0.1496/kWh, $0.1502/kWh, $0.1557/kWh, and $0.1576/kWh for Rajshahi, Sylhet, Dhaka, and Chattogram, respectively. About 45% of excess electricity can be stored after fulfilling all requirements. The system is more economical than a microgrid-based water pumping system and a diesel-based system, and the photovoltaic system is technically and economically suitable to pump water if the nearest grid connection is impossible. When connected to the main utility grid, the system can survive without grid power for several hours, subject to daytime outages.
    MeSH term(s) Bangladesh ; Computer Simulation ; Electricity ; Sunlight ; Water
    Chemical Substances Water (059QF0KO0R)
    Language English
    Publishing date 2022-04-27
    Publishing country Germany
    Document type Journal Article
    ZDB-ID 1178791-0
    ISSN 1614-7499 ; 0944-1344
    ISSN (online) 1614-7499
    ISSN 0944-1344
    DOI 10.1007/s11356-022-20339-2
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    In stock of ZB MED Bonn / Germany

    Z 5915: Show issues

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  7. Article: Potential of biogas and bioelectricity production from Rohingya camp in Bangladesh: A case study

    Chowdhury, Hemal / Chowdhury, Tamal / Miskat, Monirul Islam / Hossain, Nazia / Chowdhury, Piyal / Sait, Sadiq M

    Energy. 2021 Jan. 01, v. 214

    2021  

    Abstract: Current refugee influx has become an impediment for economic growth and environmental safety worldwide, particularly during the last decade. Challenges for additional space requirement to dispose waste produced by refugees, and fuel and energy ... ...

    Abstract Current refugee influx has become an impediment for economic growth and environmental safety worldwide, particularly during the last decade. Challenges for additional space requirement to dispose waste produced by refugees, and fuel and energy requirement to fulfill the demand for additional population has become a major burden on hosting countries. Bangladesh is one such country accommodating over 1.2 million Rohingya refugees from Myanmar since 2017. It has provided temporary housing to this large number of refugees in Cox’s Bazaar district. To mitigate this additional energy demand, utilizing via biogas production, from the organic waste of the refugee camps, may contribute significantly. This case study aims to determine the present and future waste generation of Rohingya camps and assess the present and future biogas resource potential in Rohingya camp via a bottom-up analysis approach. Municipal solid waste has been considered for the projection of biogas production through anaerobic digestion process. The simulation outcome presented that, in 2019, organic fraction from generated waste was 110.98 Million ton (Mt) and in 2025 it is projected to be 136.56 Mt. Biogas potential from that organic fraction in 2019 is 7.16 Mm³ which will increase to 14.43 Mm³ in 2025.
    Keywords anaerobic digestion ; bioelectricity ; biogas ; case studies ; economic development ; energy ; gas production (biological) ; municipal solid waste ; organic wastes ; Bangladesh ; Myanmar
    Language English
    Dates of publication 2021-0101
    Publishing place Elsevier Ltd
    Document type Article
    Note NAL-AP-2-clean
    ZDB-ID 2019804-8
    ISSN 0360-5442 ; 0360-5442
    ISSN (online) 0360-5442
    ISSN 0360-5442
    DOI 10.1016/j.energy.2020.118837
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  8. Article: Commercial diesel application scenario and potential of alternative biodiesel from waste chicken skin in Bangladesh

    Barua, Pranta / Hossain, Nazia / Chowdhury, Tamal / Chowdhury, Hemal

    Environmental technology & innovation. 2020 Nov., v. 20

    2020  

    Abstract: During this industrialized era, consumption of high-speed diesel (HSD) is increasing rapidly in the power, transportation, agriculture, and other commercial sectors of Bangladesh, albeit a significant amount of HSD is imported from foreign countries. The ...

    Abstract During this industrialized era, consumption of high-speed diesel (HSD) is increasing rapidly in the power, transportation, agriculture, and other commercial sectors of Bangladesh, albeit a significant amount of HSD is imported from foreign countries. The fuel mono-dependency on imported HSD demands huge economic investment of any country that consequences a negative impact on the cash flow of the overall economy. This study emphasized the contribution of HSD from petroleum products in significant fields and provided the current scenario of diesel import. Besides fuel issues, the other major environmental concern of Bangladesh is tremendous carbon emission caused by the overuse of diesel that consequences severe environmental pollution. To minimize the investment in imported HSD as well as environmental pollution, an alternative fuel, biodiesel generation, has been proposed in this study. This study also projected the total approximate biodiesel production from chicken skin collected from the whole of Bangladesh. Besides, this study also predicted the possible amount of can be replaced by biodiesel from chicken skin and aimed at the cost reduction due to the replacement of diesel by biodiesel.
    Keywords alternative fuels ; biodiesel ; carbon ; chicken skin ; cost effectiveness ; economic investment ; environmental technology ; imports ; industrialization ; petroleum ; pollution ; transportation ; Bangladesh
    Language English
    Dates of publication 2020-11
    Publishing place Elsevier B.V.
    Document type Article
    Note NAL-AP-2-clean
    ISSN 2352-1864
    DOI 10.1016/j.eti.2020.101139
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  9. Article ; Online: Estimation of the healthcare waste generation during COVID-19 pandemic in Bangladesh.

    Chowdhury, Tamal / Chowdhury, Hemal / Rahman, Md Salman / Hossain, Nazia / Ahmed, Ashfaq / Sait, Sadiq M

    The Science of the total environment

    2021  Volume 811, Page(s) 152295

    Abstract: COVID-19 pandemic-borne wastes imposed a severe threat to human lives as well as the total environment. Improper handling of these wastes increases the possibility of future transmission. Therefore, immediate actions are required from both local and ... ...

    Abstract COVID-19 pandemic-borne wastes imposed a severe threat to human lives as well as the total environment. Improper handling of these wastes increases the possibility of future transmission. Therefore, immediate actions are required from both local and international authorities to mitigate the amount of waste generation and ensure proper disposal of these wastes, especially for low-income and developing countries where solid waste management is challenging. In this study, an attempt is made to estimate healthcare waste generated during the COVID-19 pandemic in Bangladesh. This study includes infected, ICU, deceased, isolated and quarantined patients as the primary sources of medical waste. Results showed that COVID-19 medical waste from these patients was 658.08 tons in March 2020 and increased to 16,164.74 tons in April 2021. A top portion of these wastes was generated from infected and quarantined patients. Based on survey data, approximate daily usage of face masks and hand gloves is also determined. Probable waste generation from COVID-19 confirmatory tests and vaccination has been simulated. Finally, several guidelines are provided to ensure the country's proper disposal and management of COVID-related wastes.
    MeSH term(s) Bangladesh/epidemiology ; COVID-19 ; Delivery of Health Care ; Humans ; Medical Waste ; Medical Waste Disposal ; Pandemics ; SARS-CoV-2 ; Waste Management
    Chemical Substances Medical Waste ; Medical Waste Disposal
    Language English
    Publishing date 2021-12-09
    Publishing country Netherlands
    Document type Journal Article
    ZDB-ID 121506-1
    ISSN 1879-1026 ; 0048-9697
    ISSN (online) 1879-1026
    ISSN 0048-9697
    DOI 10.1016/j.scitotenv.2021.152295
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    In stock of ZB MED Cologne/Königswinter

    Zs.A 949: Show issues Location:
    Je nach Verfügbarkeit (siehe Angabe bei Bestand)
    bis Jg. 1994: Bestellungen von Artikeln über das Online-Bestellformular
    Jg. 1995 - 2021: Lesesall (1.OG)
    ab Jg. 2022: Lesesaal (EG)

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  10. Article ; Online: Are mega-events super spreaders of infectious diseases similar to COVID-19? A look into Tokyo 2020 Olympics and Paralympics to improve preparedness of next international events.

    Chowdhury, Tamal / Chowdhury, Hemal / Bontempi, Elza / Coccia, Mario / Masrur, Hasan / Sait, Sadiq M / Senjyu, Tomonobu

    Environmental science and pollution research international

    2022  Volume 30, Issue 4, Page(s) 10099–10109

    Abstract: Tokyo Summer Olympics and Paralympics have raised social issues regarding the potential rise in COVID-19 cases in Japan and risks associated with the safe organization of mega sporting events during the pandemic, such as the FIFA World Cup Qatar 2022. ... ...

    Abstract Tokyo Summer Olympics and Paralympics have raised social issues regarding the potential rise in COVID-19 cases in Japan and risks associated with the safe organization of mega sporting events during the pandemic, such as the FIFA World Cup Qatar 2022. This study investigates the Tokyo Summer Olympics as a unique case study to clarify the drivers of infectivity and provide guidelines to host countries for the safe organization of subsequent international sporting events. The result here reveals that Tokyo and Japan did not experience a rise in confirmed cases of COVID-19 due to the hosting of the Summer Olympics. Still, transmission dynamics seems to be mainly driven by the high density of population (about 1.2%, p-value <0.001) like other larger cities in Japan (result confirmed with Mann-Whitney U test, significance at 0.05). Our study provided evidence that hosting mega sporting events during this COVID-19 pandemic is safe if strictly maintained the precautions with non-pharmaceutical (and pharmaceutical) measures of control of infections. The Tokyo Summer Olympics hosting will be exemplary for next international events due to the successful implementation of preventive measures during COVID-19 pandemic crisis.
    MeSH term(s) Humans ; Tokyo/epidemiology ; COVID-19/epidemiology ; Pandemics ; Sports ; Communicable Diseases
    Language English
    Publishing date 2022-09-06
    Publishing country Germany
    Document type Journal Article
    ZDB-ID 1178791-0
    ISSN 1614-7499 ; 0944-1344
    ISSN (online) 1614-7499
    ISSN 0944-1344
    DOI 10.1007/s11356-022-22660-2
    Database MEDical Literature Analysis and Retrieval System OnLINE

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    In stock of ZB MED Bonn / Germany

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