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Malbenia John M, Benettayeb A, Belkacem M, Ruvimbo Mitchel C, Hadj Brahim M, Benettayeb I, Haddou B, Al-Farraj S, Alkahtane AA, Ghosh S, Chia CH, Sillanpaa M, Baigenzhenov O, Hosseini-Bandegharaei A. An overview on the key advantages and limitations of batch and dynamic modes of biosorption of metal ions. CHEMOSPHERE 2024; 357:142051. [PMID: 38648988 DOI: 10.1016/j.chemosphere.2024.142051] [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: 09/02/2023] [Revised: 04/08/2024] [Accepted: 04/13/2024] [Indexed: 04/25/2024]
Abstract
Water purification using adsorption is a crucial process for maintaining human life and preserving the environment. Batch and dynamic adsorption modes are two types of water purification processes that are commonly used in various countries due to their simplicity and feasibility on an industrial scale. However, it is important to understand the advantages and limitations of these two adsorption modes in industrial applications. Also, the possibility of using batch mode in industrial scale was scrutinized, along with the necessity of using dynamic mode in such applications. In addition, the reasons for the necessity of performing batch adsorption studies before starting the treatment on an industrial scale were mentioned and discussed. In fact, this review article attempts to throw light on these subjects by comparing the biosorption efficiency of some metals on utilized biosorbents, using both batch and fixed-bed (column) adsorption modes. The comparison is based on the effectiveness of the two processes and the mechanisms involved in the treatment. Parameters such as biosorption capacity, percentage removal, and isotherm models for both batch and column (fixed bed) studies are compared. The article also explains thermodynamic and kinetic models for batch adsorption and discusses breakthrough evaluations in adsorptive column systems. The review highlights the benefits of using convenient batch-wise biosorption in lab-scale studies and the key advantages of column biosorption in industrial applications.
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Affiliation(s)
- Masamvu Malbenia John
- Laboratoire de Génie Chimique et de Catalyse Hétérogène, département de Génie Chimique, Université de Sciences et de la Technologie -Mohamed Boudiaf, USTO-MB, BP 1505, EL-M'NAOUAR, 31000, Oran, Algeria
| | - Asmaa Benettayeb
- Laboratoire de Génie Chimique et de Catalyse Hétérogène, département de Génie Chimique, Université de Sciences et de la Technologie -Mohamed Boudiaf, USTO-MB, BP 1505, EL-M'NAOUAR, 31000, Oran, Algeria.
| | - Mohamed Belkacem
- Laboratoire de Génie Chimique et de Catalyse Hétérogène, département de Génie Chimique, Université de Sciences et de la Technologie -Mohamed Boudiaf, USTO-MB, BP 1505, EL-M'NAOUAR, 31000, Oran, Algeria; Laboratoire Physico-Chimie des Matériaux - Catalyse et Environnement - LPCM-CE, Université des Sciences et de la Technologie d'Oran Mohamed Boudiaf (USTO-MB), BP 1505, El M'naouer, 31000, Oran, Algeria
| | - Chitepo Ruvimbo Mitchel
- Laboratoire de Génie Chimique et de Catalyse Hétérogène, département de Génie Chimique, Université de Sciences et de la Technologie -Mohamed Boudiaf, USTO-MB, BP 1505, EL-M'NAOUAR, 31000, Oran, Algeria
| | - Mustapha Hadj Brahim
- Laboratoire de Génie Chimique et de Catalyse Hétérogène, département de Génie Chimique, Université de Sciences et de la Technologie -Mohamed Boudiaf, USTO-MB, BP 1505, EL-M'NAOUAR, 31000, Oran, Algeria; Laboratoire Physico-Chimie des Matériaux - Catalyse et Environnement - LPCM-CE, Université des Sciences et de la Technologie d'Oran Mohamed Boudiaf (USTO-MB), BP 1505, El M'naouer, 31000, Oran, Algeria
| | - Imene Benettayeb
- Département d'automatique et Informatique Industrielle, Université de Sciences et de la Technologie -Mohamed Boudiaf, USTO-MB, BP 1505, EL-M'NAOUAR, 31000, Oran, Algeria
| | - Boumediene Haddou
- Laboratoire Physico-Chimie des Matériaux - Catalyse et Environnement - LPCM-CE, Université des Sciences et de la Technologie d'Oran Mohamed Boudiaf (USTO-MB), BP 1505, El M'naouer, 31000, Oran, Algeria
| | - Saleh Al-Farraj
- Department of Zoology, College of Science, King Saud University, Riyadh, Saudi Arabia
| | | | - Soumya Ghosh
- Natural & Medical Sciences Research Center, University of Nizwa, Nizwa, 616, Oman; Department of Genetics, Faculty of Natural and Agricultural Sciences, University of the Free State, Bloemfontein 9301, South Africa.
| | - C H Chia
- Department of Applied Physics, Faculty of Science and Technology, Universiti Kebangsaan Malaysia, 43600, Bangi, Selangor, Malaysia
| | - Mika Sillanpaa
- Functional Materials Group, Gulf University for Science and Technology, Mubarak Al-Abdullah, 32093, Kuwait, Kuwait; Centre of Research Impact and Outcome, Chitkara University Institute of Engineering and Technology, Chitkara University, Rajpura, 140401, Punjab, India; Division of Research & Development, Lovely Professional University, Phagwara, 144411, Punjab, India; Department of Chemical Engineering, School of Mining, Metallurgy and Chemical Engineering, University of Johannesburg, P. O. Box 17011, Doornfontein, 2028, South Africa
| | - Omirserik Baigenzhenov
- Department of Metallurgical Engineering, Satbayev University, Almaty, 050013, Kazakhstan
| | - Ahmad Hosseini-Bandegharaei
- Faculty of Chemistry, Semnan University, Semnan, Iran; Department of Sustainable Engineering, Saveetha School of Engineering, SIMATS, Chennai, 602105, Tamil Nadu, India; Chitkara Centre for Research and Development, Chitkara University, Himachal Pradesh, 174103, India.
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George N, Prasad JB, Varghese E, Rajesh R, Kumar A. Impact of Lockdown on Air Quality in the Most Polluted Cities of India. Indian J Community Med 2024; 49:96-103. [PMID: 38425947 PMCID: PMC10900447 DOI: 10.4103/ijcm.ijcm_980_22] [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: 12/12/2022] [Accepted: 10/28/2023] [Indexed: 03/02/2024] Open
Abstract
Background COVID-19 has become a global pandemic, prompting lockdowns in practically every country. To prevent the spread of the disease, India has enforced a rigorous nationwide lockdown that commenced in March 2020. The lockdown imposed amid the pandemic ensured that most commercial activities and vehicle transportation ceased, resulting in a significant reduction in air pollution levels. Material and Methods The value of air pollutants PM10, PM2.5, NO2, and SO2 from January to May 2020 was obtained from the Indian Central Pollution Control Board. Before lockdown and during lockdown, relative fluctuations in ambient concentrations of four air contaminants were investigated. The Box-Jenkins approach was used to estimate future air pollution data points using time series data analysis. Results The PM10 level reduced by 61%, 30%, 68%, 37%, and 43% in the selected cities, respectively. Comparison of other pollutant concentrations before and after the lockdown also found a reduction in ambient pollutant concentrations, resulting in improved air quality. Inference of predicted model values to observed values revealed a significant increase in the concentrations of all pollutants. The percentage increases in AQImean from predicted to observed values were 206% in Ghaziabad, 148% in Delhi, 59% in Hyderabad, and 160% in Cochin. Conclusion The strict lockdown has resulted in a significant drop in air pollutant levels. Upgrading present technologies could help keep pollution to a minimum of 37% under control. The findings would prompt the government to consider how to strictly reduce vehicle and industrial pollution to improve air quality and maintain improved public health.
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Affiliation(s)
- Noel George
- Department of Epidemiology and Biostatistics, KLE University, Belgaum, Karnataka, India
| | - Jang Bahadur Prasad
- Department of Epidemiology and Biostatistics, KLE University, Belgaum, Karnataka, India
| | - Elizabeth Varghese
- Department of Statistics, Clinical Trial Unit, University of Edinburgh, UK
| | - Richu Rajesh
- Department of Statistics, Cochin University of Science and Technology, Kochi, Kerala, India
| | - Aravind Kumar
- Department of Disaster Management, Tata Institute of Social Sciences, Mumbai, Maharashtra, India
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Khan K, Khurshid A, Cifuentes-Faura J. Is geopolitics a new risk to environmental policy in the European union? JOURNAL OF ENVIRONMENTAL MANAGEMENT 2023; 345:118868. [PMID: 37659375 DOI: 10.1016/j.jenvman.2023.118868] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/25/2023] [Revised: 08/02/2023] [Accepted: 08/26/2023] [Indexed: 09/04/2023]
Abstract
Geopolitical risks and environmental policy have become increasingly important in the European Union (EU), which is committed to tackling climate change and protecting the environment. However, geopolitical risks can undermine its environmental policy objectives. Thus, the study evaluates the relationship between geopolitical risks and environmental policy in nineteen EU countries from 1994 to 2020 through panel bootstrap Granger causality. The results show that geopolitical risks significantly influence environmental policy in Denmark, Estonia, Finland, France, Germany, Luxembourg, and Romania. On the other hand, the findings reveal that environmental policy causes geopolitical risks only in Latvia, while there is no relationship in the remaining countries. Therefore, policymakers must develop resilience to geopolitical risks, promote renewable energy, strengthen environmental regulations, and address social and economic implications to reduce environmental policy vulnerability to geopolitical risks.
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Affiliation(s)
- Khalid Khan
- International Education School, Hengxing University, Licang District, Qingdao, Shandong, China.
| | - Adnan Khurshid
- School of Economics and Management, Zhejiang Normal University, Jinhua, Zhejiang, China.
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Pathak M, Patel VK, Kuttippurath J. Spatial heterogeneity in global atmospheric CO during the COVID-19 lockdown: Implications for global and regional air quality policies. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2023; 335:122269. [PMID: 37524239 DOI: 10.1016/j.envpol.2023.122269] [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: 05/31/2023] [Revised: 07/20/2023] [Accepted: 07/25/2023] [Indexed: 08/02/2023]
Abstract
The COVID-19 lockdown (LD) provided a unique opportunity to examine the changes in regional and global air quality. Changes in the atmospheric carbon monoxide (CO) during LD warrant a thorough analysis as CO is a major air pollutant that affects human health, ecosystem and climate. Our analysis reveals a decrease of 5-10% in the CO column during LD (April-May 2020) compared to the pre-lockdown (PreLD, March 2020) periods in regions with high anthropogenic activity, such as East China (EC), Indo-Gangetic Plain (IGP), North America, parts of Europe and Russia. However, this reduction did not occur in the regions of frequent and intense wildfires and agricultural waste burning (AWB). We find high heterogeneity in the CO column distributions, from regional to city scales during the LD period. To determine the sources of CO emissions during LD, we examined the ratios of nitrogen dioxide (NO2), sulfur dioxide (SO2) to CO for major cities in the world. This facilitated the identification of contributions from different sources; including vehicles, industries and biomass burning during LD. The comparison between CO levels during the LD and PreLD periods indicates a notable reduction in the global tropospheric CO, but no significant change in the stratosphere. It is found that CO emissions decreased during LD in the hotspot regions, but rebounded after the LD restrictions were lifted. This study, therefore, highlights the importance of policy decisions and their implementations in the global and regional scales to improve the air quality, and thus to protect public health and environment.
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Affiliation(s)
- M Pathak
- CORAL, Indian Institute of Technology Kharagpur, Kharagpur, 721302, India
| | - V K Patel
- CORAL, Indian Institute of Technology Kharagpur, Kharagpur, 721302, India
| | - J Kuttippurath
- CORAL, Indian Institute of Technology Kharagpur, Kharagpur, 721302, India.
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Hu Z, Zhu S. Impact of the COVID-19 outbreak on China's tourism economy and green finance efficiency. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2023; 30:49963-49979. [PMID: 36787070 PMCID: PMC9926458 DOI: 10.1007/s11356-023-25406-w] [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: 11/17/2022] [Accepted: 01/15/2023] [Indexed: 04/16/2023]
Abstract
As a result of the COVID-19 pandemic, production costs have grown, while human and economic resources have been reduced. COVID-19 epidemic costs can be reduced by implementing green financial policies, including carbon pricing, transferable green certificates, and green credit. In addition, China's tourist industry is a significant source of revenue for the government. Coronavirus has been found in 30 Chinese regions, and a study is being conducted to determine its influence on the tourism business and green financial efficiency. Econometric strategies that are capable of dealing with the most complex issues are employed in this study. According to the GMM system, the breakout of Covid-19 had a negative effect on the tourism business and the efficiency of green financing. Aside from that, the effects of gross capital creation, infrastructural expansion, and renewable energy consumption are all good. The influence of per capita income on the tourism industry is beneficial but detrimental to the efficiency of green finance. Due to the current pandemic condition, this report presents a number of critical recommendations for boosting tourism and green financial efficiency.
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Affiliation(s)
- Zhaolin Hu
- Henan Polytechnic, Zhengzhou, 450000 China
| | - Suting Zhu
- Henan Polytechnic, Zhengzhou, 450000 China
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Bhat SA, Sher F, Kumar R, Karahmet E, Haq SAU, Zafar A, Lima EC. Environmental and health impacts of spraying COVID-19 disinfectants with associated challenges. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2022; 29:85648-85657. [PMID: 34599438 PMCID: PMC8486161 DOI: 10.1007/s11356-021-16575-7] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/07/2021] [Accepted: 09/12/2021] [Indexed: 05/04/2023]
Abstract
Coronavirus refers to a group of widespread viruses. The name refers to the specific morphology of these viruses because their spikes look like a crown under an electron microscope. The outbreak of coronavirus disease 2019 (COVID-19) that has been reported in Wuhan, China, in December 2019, was proclaimed an international public health emergency (PHEIC) on 30 January 2020, and on 11 March 2020, it was declared as a pandemic (World Health Organization 2020). The official name of the virus was declared by the WHO as "COVID-19 virus", formerly known as "2019-nCoV", or "Wuhan Coronavirus". The International Committee on Virus Taxonomy's Coronavirus Research Group has identified that this virus is a form of coronavirus that caused a severe outbreak of acute respiratory syndrome in 2002-2003 (SARS). As a result, the latest severe acute respiratory syndrome has been classified as a corona virus 2 (SARS-CoV-2) pathogen by this committee. This disease spread quickly across the country and the world within the first 3 months of the outbreak and became a global pandemic. To stop COVID-19 from spreading, the governing agencies used various chemicals to disinfect different commercial spaces, streets and highways. However, people used it aggressively because of panic conditions, anxiety and unconsciousness, which can have a detrimental impact on human health and the environment. Our water bodies, soil and air have been polluted by disinfectants, forming secondary products that can be poisonous and mutagenic. In the prevention and spread of COVID-19, disinfection is crucial, but disinfection should be carried out with sufficient precautions to minimize exposure to harmful by-products. In addition, to prevent inhalation, adequate personal protective equipment should be worn and chemical usage, concentrations, ventilation in the room and application techniques should be carefully considered. In the USA, 60% of respondents said they cleaned or disinfected their homes more often than they had in the previous months. In addition to the robust use of disinfection approaches to combat COVID-19, we will explore safe preventative solutions here.
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Affiliation(s)
- Shakeel Ahmad Bhat
- College of Agricultural Engineering, Sher-e-Kashmir University of Agricultural Sciences and Technology of Kashmir, Jammu and Kashmir, India
| | - Farooq Sher
- Department of Engineering, School of Science and Technology, Nottingham Trent University, Nottingham, NG11 8NS, UK.
| | - Rohitashw Kumar
- College of Agricultural Engineering, Sher-e-Kashmir University of Agricultural Sciences and Technology of Kashmir, Jammu and Kashmir, India
| | - Emina Karahmet
- Department of Biochemistry, Faculty of Pharmacy, University of Modern Science, 88000, Mostar, Bosnia and Herzegovina
- International Society of Engineering Science and Technology, Nottingham, UK
| | - Syed Anam Ul Haq
- Division of Plant Biotechnology, Sher-e-Kashmir University of Agricultural Sciences and Technology of Kashmir, Srinagar, Jammu and Kashmir, 190025, India
| | - Ayesha Zafar
- International Society of Engineering Science and Technology, Nottingham, UK
- Institute of Biochemistry and Biotechnology, Faculty of Biosciences, University of Veterinary and Animal Sciences, Lahore, Pakistan
| | - Eder C Lima
- Institute of Chemistry, Federal University of Rio Grande do Sul (UFRGS), Av. Bento Goncalves 9500, P.O. Box 15003, Porto Alegre, RS, ZIP 91501-970, Brazil
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Abstract
Thirty years after the UN Conference on Environment and Development created the UN Framework Convention on Climate Change, efforts to respond to the issue continue to be insufficient to meet the challenges of the climate crisis. This perspective builds on the experience of society’s responses to the COVID-19 pandemic to understand what is needed to get to meaningful climate action. It applies the framework of the AnthroShift to assess how transformational social change is likely to emerge. The paper concludes by determining that the most plausible pathway to an effective social response to the climate crisis would be driven by civil society. However, the level of mass mobilization needed is only possible if society is experiencing large-scale and sustained levels of risk that have tangible long-term consequences in terms of social cost to people and property.
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Winton D, Marazzi L, Loiselle S. Drivers of public plastic (mis)use - New insights from changes in single-use plastic usage during the Covid-19 pandemic. THE SCIENCE OF THE TOTAL ENVIRONMENT 2022; 849:157672. [PMID: 35931168 PMCID: PMC9345657 DOI: 10.1016/j.scitotenv.2022.157672] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/06/2022] [Revised: 07/23/2022] [Accepted: 07/24/2022] [Indexed: 05/04/2023]
Abstract
The coronavirus pandemic (Covid-19) has influenced resource use and how people interact with their environment, with changing priorities and competing public health factors affecting pro-environmental behaviours at individual, societal, business and political levels. We used data from an online plastic footprint calculator to explore temporal changes, purchasing patterns and consumer behaviours around on-the-go plastic use during the pandemic. We hypothesised that 1) people's plastic use when on-the-go would change in response to the pandemic and related government restrictions and; 2) single-use plastic use on-the-go would decrease during lockdown periods due to restrictions against leaving home. The calculator received 1937 responses, with 13,544 plastic items recorded. Most used were food wrappers (54 % of all items), takeaway containers (12 %) and bottles (9 %). Six out of seven items showed increased use during lockdowns, in-line with our first hypothesis, but not the second. Three times more bottles were used, food wrapper consumption almost doubled, and takeaway container use more than doubled. Increased container use occurred alongside increased takeaway meal consumption during lockdowns. Patterns were similar between different periods of lockdown, with no significant differences in the number used of any items, or percentage of respondents using them. Results indicate that during lockdown, people found it harder to avoid single-use plastic while on-the-go, supporting evidence from other studies that plastic use can be driven by perceptions of hygiene benefits and lack of "safe" alternatives. Our results indicate opportunities to reduce single-use plastic consumption and we provide examples of successful implementation. Our findings evidence that, when properly applied, government-led guidance can effectively support consumer choices for reduced plastic use, encourage use of reusables, increase provision of alternatives, and dispel hygiene myths. The sudden increase in plastic waste due to the Covid-19 pandemic amplifies the need to substantiate plastic reduction policy promises without further delay.
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Affiliation(s)
- Debbie Winton
- Earthwatch Europe, Mayfield House, 256 Banbury Road, Oxford OX2 7DE, UK.
| | - Luca Marazzi
- Thames 21, The City of London, Guildhall, Aldermanbury Street, London EC2V 7HH, UK
| | - Steven Loiselle
- Earthwatch Europe, Mayfield House, 256 Banbury Road, Oxford OX2 7DE, UK; Dipartimento di Biotecnologie, Chimica e Farmacia, University of Siena, CSGI, Via Aldo Moro 2, Siena 53100, Italy
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Wang J, Li F, Cui H, Shi Q, Mingee T. Electricity consumption variation versus economic structure during COVID-19 on metropolitan statistical areas in the US. Nat Commun 2022; 13:7122. [PMID: 36402765 PMCID: PMC9675752 DOI: 10.1038/s41467-022-34447-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/02/2021] [Accepted: 10/25/2022] [Indexed: 11/20/2022] Open
Abstract
The outbreak of novel coronavirus disease (COVID-19) has resulted in changes in productivity and daily life patterns, and as a result electricity consumption (EC) has also shifted. In this paper, we construct estimates of EC changes at the metropolitan level across the continental U.S., including total EC and residential EC during the initial two months of the pandemic. The total and residential data on the state level were broken down into the county level, and then metropolitan level EC estimates were aggregated from the counties included in each metropolitan statistical area (MSA). This work shows that the reduction in total EC is related to the shares of certain industries in an MSA, whereas regardless of the incidence level or economic structure, the residential sector shows a trend of increasing EC across the continental U.S. Since the MSAs account for 86% of the total population and 87% of the total EC of the continental U.S., the analytical result in this paper can provide important guidelines for future social-economic crises.
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Affiliation(s)
- Jinning Wang
- grid.411461.70000 0001 2315 1184Department of Electrical Engineering and Computer Science, The University of Tennessee, Knoxville, TN 37996 USA
| | - Fangxing Li
- grid.411461.70000 0001 2315 1184Department of Electrical Engineering and Computer Science, The University of Tennessee, Knoxville, TN 37996 USA
| | - Hantao Cui
- grid.411461.70000 0001 2315 1184Department of Electrical Engineering and Computer Science, The University of Tennessee, Knoxville, TN 37996 USA
| | - Qingxin Shi
- grid.411461.70000 0001 2315 1184Department of Electrical Engineering and Computer Science, The University of Tennessee, Knoxville, TN 37996 USA
| | - Trey Mingee
- grid.411461.70000 0001 2315 1184Department of Electrical Engineering and Computer Science, The University of Tennessee, Knoxville, TN 37996 USA
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Sahoo TP, Vasavdutta S, Chanchpara A, Sahu N, Thiyagarajan I, Ray S, Chatterjee S, Thorat RB, Haldar S, Madhava AK. Pre-to-post COVID-19 lockdown and their environmental impacts on Ghoghla beach and Somnath beach, India. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2022; 29:82140-82155. [PMID: 35750909 PMCID: PMC9244305 DOI: 10.1007/s11356-022-21586-z] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/22/2022] [Accepted: 06/16/2022] [Indexed: 05/22/2023]
Abstract
Environmental impact of COVID-19 imposed lockdown (2020) and the new normal condition (2021) on two different beaches of India (Ghoghla beach, Diu and Somnath beach, Veraval) were compared with the pre-lockdown era, 2013. The lockdown phase favored the natural restoration of the beaches and showed infinitesimal values of the parameters tested when compared with the pre-lockdown regime. However, the new normal situation in 2021 opened up the accessibility of these beaches to the tourists and pilgrims resulting in significant changes of water quality. The release of diluted sewage mixed with freshwater from the Somnath town to the sea has led to the drastic change in beach water quality. The mean cadmium concentration increased drastically in beach waters (Ghoghla: 1.35, 0.28 and 7.09 μg/L; Somnath: 0.45, 0.28 and 0.58 μg/L) during pre-to-post lockdown, respectively. However, post-lockdown resulted in the rise of toxic heavy metals in the sediments of Somnath beach but Ghoghla beach remained to be pristine which may be due to the Blue Flagship status. The total number of marine bacteria was higher during 2013 and 2021 when compared during lockdown describing greater human interventions. For instance, Vibrio spp. count in Ghoghla beach water during pre-lockdown phase was 7733 CFU/mL and this value reduced to 70 and 5 CFU/mL in the lockdown and post-lockdown phases. Interestingly, the diversity of planktonic and benthic components showed a different trend from pre-to-post lockdown due to significant change in the inorganic nutrients and metal bioaccumulation. To our knowledge, this will be the first comprehensive assessment to report the environmental and ecological health of Ghoghla beach and Somnath beach during the pre-to-post lockdown.
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Affiliation(s)
- Tarini Prasad Sahoo
- Analytical and Environmental Science Division & Centralized Instrument Facility, CSIR-Central Salt & Marine Chemicals Research Institute, Bhavnagar, Gujarat, 364 002, India
- Academy of Scientific and Innovative Research, Ghaziabad, Uttar Pradesh, 201 002, India
| | - Sonpal Vasavdutta
- Analytical and Environmental Science Division & Centralized Instrument Facility, CSIR-Central Salt & Marine Chemicals Research Institute, Bhavnagar, Gujarat, 364 002, India
| | - Amit Chanchpara
- Analytical and Environmental Science Division & Centralized Instrument Facility, CSIR-Central Salt & Marine Chemicals Research Institute, Bhavnagar, Gujarat, 364 002, India
- Academy of Scientific and Innovative Research, Ghaziabad, Uttar Pradesh, 201 002, India
| | - Nosad Sahu
- Analytical and Environmental Science Division & Centralized Instrument Facility, CSIR-Central Salt & Marine Chemicals Research Institute, Bhavnagar, Gujarat, 364 002, India
| | - Indirapriyatharsini Thiyagarajan
- Analytical and Environmental Science Division & Centralized Instrument Facility, CSIR-Central Salt & Marine Chemicals Research Institute, Bhavnagar, Gujarat, 364 002, India
| | - Sanak Ray
- Analytical and Environmental Science Division & Centralized Instrument Facility, CSIR-Central Salt & Marine Chemicals Research Institute, Bhavnagar, Gujarat, 364 002, India
- Academy of Scientific and Innovative Research, Ghaziabad, Uttar Pradesh, 201 002, India
| | - Shruti Chatterjee
- Applied Phycology and Biotechnology, CSIR-Central Salt & Marine Chemicals Research Institute, Bhavnagar, Gujarat, 364 002, India
| | - Ravikumar Bhagawan Thorat
- Analytical and Environmental Science Division & Centralized Instrument Facility, CSIR-Central Salt & Marine Chemicals Research Institute, Bhavnagar, Gujarat, 364 002, India
- Academy of Scientific and Innovative Research, Ghaziabad, Uttar Pradesh, 201 002, India
| | - Soumya Haldar
- Analytical and Environmental Science Division & Centralized Instrument Facility, CSIR-Central Salt & Marine Chemicals Research Institute, Bhavnagar, Gujarat, 364 002, India
- Academy of Scientific and Innovative Research, Ghaziabad, Uttar Pradesh, 201 002, India
| | - Anil Kumar Madhava
- Analytical and Environmental Science Division & Centralized Instrument Facility, CSIR-Central Salt & Marine Chemicals Research Institute, Bhavnagar, Gujarat, 364 002, India.
- Academy of Scientific and Innovative Research, Ghaziabad, Uttar Pradesh, 201 002, India.
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Hasegawa Y, Lau SK. A qualitative and quantitative synthesis of the impacts of COVID-19 on soundscapes: A systematic review and meta-analysis. THE SCIENCE OF THE TOTAL ENVIRONMENT 2022; 844:157223. [PMID: 35810914 PMCID: PMC9262645 DOI: 10.1016/j.scitotenv.2022.157223] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/27/2022] [Revised: 07/04/2022] [Accepted: 07/04/2022] [Indexed: 05/07/2023]
Abstract
The current prolonged coronavirus disease (COVID-19) pandemic has substantially influenced numerous facets of our daily lives for over two years. Although a number of studies have explored the pandemic impacts on soundscapes worldwide, their works have not been reviewed comprehensively nor systematically, hence a lack of prospective soundscape goals based upon global evidence. This review study examines evidence of the COVID-19 crisis impacts on soundscapes and quantifies the prevalence of unprecedented changes in acoustic environments. Two key-research classes were identified based on a systematic content analysis of the 119 included studies: (1) auditory perceptual change and (2) noise level change due to the COVID-19 pandemic/lockdown. Our qualitative synthesis ascertained the substantial adverse consequences of pandemic soundscapes on human health and well-being while beneficial aspects of the COVID-19 pandemic on soundscapes were yet identified. Furthermore, meta-analysis results highlight that the observed average noise-level reduction (148 averaged samples derived from 31 studies) varied as a function of the stringency level of the COVID-19 confinement policies imposed by the governments, which would be further moderated by urban morphology and main noise sources. Given these collective findings, we propose soundscape materiality, its nexus with related the United Nations' sustainable development goals (SDGs), and prospective approaches to support resilient soundscapes during and after the pandemic, which should be achieved to enhance healthy living and human well-being.
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Affiliation(s)
- Yoshimi Hasegawa
- Department of Architecture, National University of Singapore, Singapore.
| | - Siu-Kit Lau
- Department of Architecture, National University of Singapore, Singapore.
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12
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Diaz-Camal N, Cardoso-Vera JD, Islas-Flores H, Gómez-Oliván LM, Mejía-García A. Consumption and ocurrence of antidepressants (SSRIs) in pre- and post-COVID-19 pandemic, their environmental impact and innovative removal methods: A review. THE SCIENCE OF THE TOTAL ENVIRONMENT 2022; 829:154656. [PMID: 35318057 DOI: 10.1016/j.scitotenv.2022.154656] [Citation(s) in RCA: 37] [Impact Index Per Article: 18.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/17/2021] [Revised: 03/14/2022] [Accepted: 03/14/2022] [Indexed: 06/14/2023]
Abstract
Selective serotonin reuptake inhibitors (SSRIs) are pharmaceuticals whose consumption has increased significantly. They are prescribed as first-line treatment in mental disorders such as depression, obsessive-compulsive disorder, phobias, and anxiety; also, they are indicated as adjuvants in diseases such as fibromyalgia and bulimia nervosa. In addition to being linked to the illegal market to be consumed as recreational drugs. The relevance of this review lies in the fact that worldwide consumption has increased significantly during the COVID-19 pandemic, due to the depression and anxiety that originated in the population. As a consequence of this increase in consumption, concentrations of SSRIs in the environment have increased, and these have become a relevant issue for toxicologists due to the effects that they could generate in different organisms, both aquatic and terrestrial. For this reason, the objective of this article was to do a critical evaluation of the existing data on the characteristics and physicochemical properties of SSRIs, consumption data during the COVID-19 pandemic, its occurrence in the environment and the reports of toxic effects that have been generated in different organisms; we also conclude with an updated review of different methods that have been used for their removal. With this analysis, it can be concluded that, despite SSRIs are pharmaceutical products widely studied since their launching to the market, still currently under investigation to clarify their mechanisms of action to understand the different effects on the organisms, adverse reactions, as well as possible toxicological effects on non-target organisms. On the other hand, it has been proven that although it is already possible to eliminate a significant percentage of SSRIs in the laboratory, due to their physicochemical characteristics and their behavior in complex mixtures in the environment, they have not yet been eradicated, showing a persistence in the soil, subsoil and surface waters of the entire planet that may represent a future risk.
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Affiliation(s)
- Nidya Diaz-Camal
- Laboratorio de Toxicología Ambiental, Facultad de Química, Universidad Autónoma del Estado de México, Paseo Colón intersección Paseo Tollocan s/n, Col. Residencial Colón, 50120 Toluca, Estado de México, Mexico
| | - Jesús Daniel Cardoso-Vera
- Laboratorio de Toxicología Ambiental, Facultad de Química, Universidad Autónoma del Estado de México, Paseo Colón intersección Paseo Tollocan s/n, Col. Residencial Colón, 50120 Toluca, Estado de México, Mexico
| | - Hariz Islas-Flores
- Laboratorio de Toxicología Ambiental, Facultad de Química, Universidad Autónoma del Estado de México, Paseo Colón intersección Paseo Tollocan s/n, Col. Residencial Colón, 50120 Toluca, Estado de México, Mexico.
| | - Leobardo Manuel Gómez-Oliván
- Laboratorio de Toxicología Ambiental, Facultad de Química, Universidad Autónoma del Estado de México, Paseo Colón intersección Paseo Tollocan s/n, Col. Residencial Colón, 50120 Toluca, Estado de México, Mexico
| | - Alejandro Mejía-García
- Laboratorio de Toxicología Ambiental, Facultad de Química, Universidad Autónoma del Estado de México, Paseo Colón intersección Paseo Tollocan s/n, Col. Residencial Colón, 50120 Toluca, Estado de México, Mexico
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13
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Jiao M, Ren L, Wang Y, Ding C, Li T, Cao S, Li R, Wang Y. Mangrove forest: An important coastal ecosystem to intercept river microplastics. ENVIRONMENTAL RESEARCH 2022; 210:112939. [PMID: 35157917 DOI: 10.1016/j.envres.2022.112939] [Citation(s) in RCA: 18] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/21/2021] [Revised: 01/12/2022] [Accepted: 02/08/2022] [Indexed: 06/14/2023]
Abstract
The research on transportation of river microplastics (MPs) mainly focuses on the estimations of the total contents of river MPs entering the ocean, while the related transportation processes and influence factors were still largely unknown. In our study, the role of mangrove forest, a special tropical ecosystem in the estuary, on the transportations of MPs from rivers to ocean was explored. Except for the ND river with the absence of mangrove forest, the MPs collected from the water sample of the river upstream were much higher than their corresponding downstream (p < 0.05), with the interception rate of riverine MPs by mangrove forests ranging from 12.86% to 56% in dry season and 10.57%-42% in rainy season. The MPs with the characteristics of high density, larger size and regular shape were more easily intercepted. Furthermore, the combined effects of ecological indicators, the properties of mangrove and the hydrodynamic factors jointly determined the interception rates of MPs. This study provides a new perspective and data support for quantifying mangrove forests intercepting MPs in rivers as a factor of MPs retention in global rivers.
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Affiliation(s)
- Meng Jiao
- Guangxi University, Nanning, 530004, PR China
| | - Lu Ren
- Guangxi University, Nanning, 530004, PR China
| | - Yijin Wang
- Guangxi University, Nanning, 530004, PR China
| | | | - Tiezhu Li
- Guangxi University, Nanning, 530004, PR China
| | | | - Ruilong Li
- Guangxi University, Nanning, 530004, PR China; Guangxi Institute of Industrial Technology, Nanning, 530004, PR China.
| | - Yinghui Wang
- Guangxi University, Nanning, 530004, PR China; Guangxi Institute of Industrial Technology, Nanning, 530004, PR China.
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Aix ML, Petit P, Bicout DJ. Air pollution and health impacts during the COVID-19 lockdowns in Grenoble, France. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2022; 303:119134. [PMID: 35283200 PMCID: PMC8908221 DOI: 10.1016/j.envpol.2022.119134] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 11/24/2021] [Revised: 03/05/2022] [Accepted: 03/09/2022] [Indexed: 06/14/2023]
Abstract
It is undeniable that exposure to outdoor air pollution impacts the health of populations and therefore constitutes a public health problem. Any actions or events causing variations in air quality have repercussions on populations' health. Faced with the worldwide COVID-19 health crisis that began at the end of 2019, the governments of several countries were forced, in the beginning of 2020, to put in place very strict containment measures that could have led to changes in air quality. While many works in the literature have studied the issue of changes in the levels of air pollutants during the confinements in different countries, very few have focused on the impact of these changes on health risks. In this work, we compare the 2020 period, which includes two lockdowns (March 16 - May 10 and a partial shutdown Oct. 30 - Dec. 15) to a reference period 2015-2019 to determine how these government-mandated lockdowns affected concentrations of NO2, O3, PM2.5, and PM10, and how that affected human health factors, including low birth weight, lung cancer, mortality, asthma, non-accidental mortality, respiratory, and cardiovascular illnesses. To this end, we structured 2020 into four periods, alternating phases of freedom and lockdowns characterized by a stringency index. For each period, we calculated (1) the differences in pollutant levels between 2020 and a reference period (2015-2019) at both background and traffic stations; and (2) the resulting variations in the epidemiological based relative risks of health outcomes. As a result, we found that relative changes in pollutant levels during the 2020 restriction period were as follows: NO2 (-32%), PM2.5 (-22%), PM10 (-15%), and O3 (+10.6%). The pollutants associated with the highest health risk reductions in 2020 were PM2.5 and NO2, while PM10 and O3 changes had almost no effect on health outcomes. Reductions in short-term risks were related to reductions in PM2.5 (-3.2% in child emergency room visits for asthma during the second lockdown) and NO2 (-1.5% in hospitalizations for respiratory causes). Long-term risk reductions related to PM2.5 were low birth weight (-8%), mortality (-3.3%), and lung cancer (-2%), and to NO2 for mortality (-0.96%). Overall, our findings indicate that the confinement period in 2020 resulted in a substantial improvement in air quality in the Grenoble area.
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Affiliation(s)
- Marie-Laure Aix
- Univ. Grenoble Alpes, CNRS, UMR 5525, VetAgro Sup, Grenoble INP, TIMC, 38000, Grenoble, France
| | - Pascal Petit
- Univ. Grenoble Alpes, CNRS, UMR 5525, VetAgro Sup, Grenoble INP, TIMC, 38000, Grenoble, France
| | - Dominique J Bicout
- Univ. Grenoble Alpes, CNRS, UMR 5525, VetAgro Sup, Grenoble INP, TIMC, 38000, Grenoble, France.
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Palansooriya KN, Sang MK, Igalavithana AD, Zhang M, Hou D, Oleszczuk P, Sung J, Ok YS. Biochar alters chemical and microbial properties of microplastic-contaminated soil. ENVIRONMENTAL RESEARCH 2022; 209:112807. [PMID: 35093312 DOI: 10.1016/j.envres.2022.112807] [Citation(s) in RCA: 21] [Impact Index Per Article: 10.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/26/2021] [Revised: 01/11/2022] [Accepted: 01/21/2022] [Indexed: 05/06/2023]
Abstract
The occurrence of microplastics (MPs) in soils can negatively affect soil biodiversity and function. Soil amendments applied to MP-contaminated soil can alter the overall soil properties and enhance its functions and processes. However, little is known about how soil amendments improve the quality of MP-contaminated soils. Thus, the present study used a microcosm experiment to explore the potential effects of four types of biochar on the chemical and microbial properties of low-density polyethylene (LDPE) MP-contaminated soil under both drought and well-watered conditions. The results show that the biochars altered soil pH, electrical conductivity (EC), available phosphorous, and total exchangeable cations (TEC) with some variability depending on the biochar type. Oilseed rape straw (OSR)-derived biochars increased soil pH, EC, and TEC under both water conditions with the highest values of 7.94, 0.54 dS m-1 and 22.0 cmol(+) kg-1, respectively. Soil enzyme activities varied under all treatments; in particular, under drought conditions, the fluorescein diacetate activity increased in soils with high temperature (700 °C) biochar. The application of soft wood pellet biochar (700 °C) to MP-contaminated soil increased urease activity by 146% under well-watered conditions. OSR-derived biochars significantly reduced soil acid phosphatase activity under both water conditions. With biochar supplementation, the diversity indices of the bacterial community increased in well-watered soil but not in soil under drought conditions. The abundance of bacterial phyla, such as Firmicutes, Proteobacteria, Actinobacteria, Dictyoglomi, and Gemmatimonadetes, was relatively high in all treatments. Biochar application resulted in negligible variations in bacterial communities under drought conditions but significant variations under well-watered conditions. The findings of this study imply that biochar can be used as a soil amendment to improve the overall soil quality of MP-contaminated soil, but its impact varies depending on the pyrolysis feedstock and temperature. Thus, selecting a suitable biochar is important for improving the soil quality in MP-contaminated soils.
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Affiliation(s)
- Kumuduni Niroshika Palansooriya
- Korea Biochar Research Center, APRU Sustainable Waste Management & Division of Environmental Science and Ecological Engineering, Korea University, Seoul, 02841, South Korea
| | - Mee Kyung Sang
- Division of Agricultural Microbiology, National Institute of Agricultural Science, Rural Development Administration, Wanju, 55365, South Korea
| | | | - Ming Zhang
- Department of Environmental Engineering, China Jiliang University, Hangzhou, 310028, China
| | - Deyi Hou
- School of Environment, Tsinghua University, Beijing, 100084, China
| | - Patryk Oleszczuk
- Department of Radiochemistry and Environmental Chemistry, Maria Curie-Sklodowska University, Lublin, 20-031, Poland
| | - Jwakyung Sung
- Department of Crop Science, College of Agriculture, Life Science and Environmental Chemistry, Chungbuk National University, Cheongju, Chungcheongbuk-do, 28644, South Korea.
| | - Yong Sik Ok
- Korea Biochar Research Center, APRU Sustainable Waste Management & Division of Environmental Science and Ecological Engineering, Korea University, Seoul, 02841, South Korea.
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16
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de Lima E Silva JR, de Lima ARB, da Silva DL, Rosa Filho JS, Adam ML. Contrasting tourism regimes due to the COVID-19 lockdown reveal varied genomic toxicity in a tropical beach in the Southern Atlantic. ENVIRONMENTAL MONITORING AND ASSESSMENT 2022; 194:464. [PMID: 35639171 PMCID: PMC9152653 DOI: 10.1007/s10661-022-10112-w] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/20/2021] [Accepted: 05/15/2022] [Indexed: 05/26/2023]
Abstract
Tourist occupancy in coastal environments threatens the stability of various coastal ecosystems and is thus a cause for concern for the environmental sector. As such, it is important to perform environmental monitoring in a way that analyses and quantifies the environmental impact of coastal ecosystems. Porto de Galinhas beach (Pernambuco - Brazil) has one of the highest visitation rates in Brazil and suffered from restrictions to human mobility due to the COVID-19 pandemic. These restrictions allowed for the evaluation of the impact of tourism on Porto de Galinhas beach and the effects that the lack of tourist occupancy had during the lockdown period of 2020. Blood samples from the species Abudefduf saxatilis were collected monthly over a period of 1 year and during the lockdown quarter, in order to perform micronucleus (MN) and nuclear morphological alteration (NMA) tests, and data were analyzed at a seasonal level (dry/rainy period) using a comet assay. For the control group, A. saxatilis samples were collected in an environmentally protected area on Tamandaré beach (68 km from Porto de Galinhas). The MN and NMA tests showed a greater frequency of genomic damage when there was greater tourist flow. In relation to rain seasonality, the comet assay showed a greater incidence of genomic damage during the dry period, where there was a higher rate of tourist migration, compared to the rainy period. The lockdown period presented a lower incidence of genotoxic damage compared to the period without restrictions on human mobility and the control. The results show that tourism has been causing a significant environmental impact on Porto de Galinhas beach. The data collected during the lockdown period demonstrated how the absence of human movement results in changes that are favorable to environmental recuperation, as illustrated by the lower frequency of genomic damage.
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Affiliation(s)
| | | | - Demétrios Lucas da Silva
- Programa de Pós - Graduação em Biologia Animal, Universidade Federal de Pernambuco, Recife, Pernambuco, Brazil
| | - José Souto Rosa Filho
- Programa de Pós - Graduação em Oceanografia, Universidade Federal de Pernambuco, Recife, Pernambuco, Brazil
| | - Mônica Lúcia Adam
- Programa de Pós - Graduação em Biologia Animal, Universidade Federal de Pernambuco, Recife, Pernambuco, Brazil
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17
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Hu Z, Yang L, Han J, Liu Z, Zhao Y, Jin Y, Sheng Y, Zhu L, Hu B. Human viruses lurking in the environment activated by excessive use of COVID-19 prevention supplies. ENVIRONMENT INTERNATIONAL 2022; 163:107192. [PMID: 35354102 PMCID: PMC8938188 DOI: 10.1016/j.envint.2022.107192] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/18/2021] [Revised: 02/24/2022] [Accepted: 03/17/2022] [Indexed: 05/09/2023]
Abstract
Due to extensive COVID-19 prevention measures, millions of tons of chemicals penetrated into natural environment. Alterations of human viruses in the environment, the neglected perceiver of environmental fluctuations, remain obscure. To decipher the interaction between human viruses and COVID-19 related chemicals, environmental samples were collected on March 2020 from surroundings of designated hospitals and receivers of wastewater treatment plant effluent in Wuhan. The virus community and chemical concentration were respectively unveiled in virtue of virome and ultra-high-performance liquid chromatography-tandem mass spectrometry. The complex relationship between virus and chemical was ulteriorly elaborated by random forest model. As an indicator, environmental viruses were corroborated to sensitively reflect the ecological disturbance originated from pandemic prevention supplies. Chemicals especially trihalomethanes restrained the virus community diversity. Confronting this adverse scenario, Human gammaherpesvirus 4 and Orf virus with resistance to trihalomethanes flourished while replication potential of Macacine alphaherpesvirus 1 ascended under glucocorticoids stress. Consequently, human viruses lurking in the environment were actuated by COVID-19 prevention chemicals, which was a constant burden to public health in this ongoing pandemic. Besides, segments of SARS-CoV-2 RNA were detected near designated hospitals, suggesting environment as a missing link in the transmission route. This research innovatively underlined the human health risk of pandemic prevention supplies from the virus - environment interaction, appealing for monitoring of environmental viruses in long term.
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Affiliation(s)
- Zhichao Hu
- Department of Environmental Engineering, Zhejiang University, Hangzhou 310058, China
| | - Lihua Yang
- State Key Laboratory of Freshwater Ecology and Biotechnology, Institute of Hydrobiology, Chinese Academy of Sciences, Wuhan 430072, China
| | - Jian Han
- State Key Laboratory of Freshwater Ecology and Biotechnology, Institute of Hydrobiology, Chinese Academy of Sciences, Wuhan 430072, China
| | - Zishu Liu
- Department of Environmental Engineering, Zhejiang University, Hangzhou 310058, China
| | - Yuxiang Zhao
- Department of Environmental Engineering, Zhejiang University, Hangzhou 310058, China
| | - Yihao Jin
- Department of Environmental Engineering, Zhejiang University, Hangzhou 310058, China
| | - Yaqi Sheng
- Department of Environmental Science, Zhejiang University, Hangzhou 310058, China; Zhejiang Provincial Key Laboratory of Organic Pollution Process and Control, Hangzhou, 310058 China
| | - Lizhong Zhu
- Department of Environmental Science, Zhejiang University, Hangzhou 310058, China; Zhejiang Provincial Key Laboratory of Organic Pollution Process and Control, Hangzhou, 310058 China.
| | - Baolan Hu
- Department of Environmental Engineering, Zhejiang University, Hangzhou 310058, China.
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18
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Heavy metals in leathers, artificial leathers, and textiles in the context of quality and safety of use. Sci Rep 2022; 12:5061. [PMID: 35332190 PMCID: PMC8948185 DOI: 10.1038/s41598-022-08911-9] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/23/2021] [Accepted: 03/14/2022] [Indexed: 11/08/2022] Open
Abstract
The article presents research findings on the content of arsenic, cadmium, chromium, copper, lead, and zinc in extracts from leathers, artificial leathers intended for footwear components, and textiles. After extracting the metals using an artificial acidic sweat solution, their contents were quantitatively determined by atomic absorption spectrometry. In the cotton textiles, the metal contents were in accordance with the OEKO-TEX limits, while regarding the artificial leathers, only the acrylic knit fur had a too high chromium content (1.1 mg/kg) as compared with the requirements of the STANDARD 100 by OEKO-TEX for products intended for children (< 1.0 mg/kg). The chromium content in lining and upper leather (> 228.0 mg/kg) exceeds the limits for children’s products (< 2.0 mg/kg), but also the less restrictive ones for other products (< 200.0 mg/kg). Regarding the other metals, the leathers met the OEKO-TEX requirements. Approved materials may have elevated heavy metal contents, as demonstrated for chromium. The presence of heavy metals in too large amounts in products is a serious problem due to their allergenic and toxic effect. Therefore, action should be taken aimed at more effective detection and elimination of such products from markets and at reducing the use of chemicals containing harmful metals in manufacturing processes.
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Yang M, Chen L, Msigwa G, Tang KHD, Yap PS. Implications of COVID-19 on global environmental pollution and carbon emissions with strategies for sustainability in the COVID-19 era. THE SCIENCE OF THE TOTAL ENVIRONMENT 2022; 809:151657. [PMID: 34793787 PMCID: PMC8592643 DOI: 10.1016/j.scitotenv.2021.151657] [Citation(s) in RCA: 31] [Impact Index Per Article: 15.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/21/2021] [Revised: 11/04/2021] [Accepted: 11/09/2021] [Indexed: 05/19/2023]
Abstract
The impacts of COVID-19 on global environmental pollution since its onset in December 2019 require special attention. The rapid spread of COVID-19 globally has led countries to lock down cities, restrict traffic travel and impose strict safety measures, all of which have implications on the environment. This review aims to systematically and comprehensively present and analyze the positive and negative impacts of COVID-19 on global environmental pollution and carbon emissions. It also aims to propose strategies to prolong the beneficial, while minimize the adverse environmental impacts of COVID-19. It systematically and comprehensively reviewed more than 100 peer-reviewed papers and publications related to the impacts of COVID-19 on air, water and soil pollution, carbon emissions as well as the sustainable strategies forward. It revealed that PM2.5, PM10, NO2, and CO levels reduced in most regions globally but SO2 and O3 levels increased or did not show significant changes. Surface water, coastal water and groundwater quality improved globally during COVID-19 lockdown except few reservoirs and coastal areas. Soil contamination worsened mainly due to waste from the use of personal protective equipment particularly masks and the packaging, besides household waste. Carbon emissions were reduced primarily due to travel restrictions and less usage of utilities though emissions from certain ships did not change significantly to maintain supply of the essentials. Sustainable strategies post-COVID-19 include the development and adoption of nanomaterial adsorption and microbial remediation technologies, integrated waste management measures, "sterilization wave" technology and energy-efficient technologies. This review provides important insight and novel coverage of the environmental implications of COVID-19 in more than 25 countries across different global regions to permit formulation of specific pollution control and sustainability strategies in the COVID-19 and post-COVID-19 eras for better environmental quality and human health.
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Affiliation(s)
- Mingyu Yang
- Department of Civil Engineering, Xi'an Jiaotong-Liverpool University, Suzhou 215123, China
| | - Lin Chen
- Department of Civil Engineering, Xi'an Jiaotong-Liverpool University, Suzhou 215123, China
| | - Goodluck Msigwa
- Department of Civil Engineering, Xi'an Jiaotong-Liverpool University, Suzhou 215123, China
| | - Kuok Ho Daniel Tang
- Environmental Science Program, Division of Science and Technology, Beijing Normal University-Hong Kong Baptist University United International College, Zhuhai 519087, China
| | - Pow-Seng Yap
- Department of Civil Engineering, Xi'an Jiaotong-Liverpool University, Suzhou 215123, China.
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Zhang Z, Malik MZ, Khan A, Ali N, Malik S, Bilal M. Environmental impacts of hazardous waste, and management strategies to reconcile circular economy and eco-sustainability. THE SCIENCE OF THE TOTAL ENVIRONMENT 2022; 807:150856. [PMID: 34627923 DOI: 10.1016/j.scitotenv.2021.150856] [Citation(s) in RCA: 23] [Impact Index Per Article: 11.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/01/2021] [Revised: 09/22/2021] [Accepted: 10/03/2021] [Indexed: 06/13/2023]
Abstract
The rise in living standards and the continuous development in the global economy led to the depletion of resources and increased waste generation per capita. This waste might posture a significant threat to human health or the environmental matrices (water, air, soil) when inadequately treated, transported, stored, or managed/disposed of. Therefore, effective waste management in an economically viable and environmentally friendly way has become meaningful. Prominent technology is the need of the day for circular economy and sustainable development to reduce the speed of depletion in resources and produce an alternative means for the future demands in the different sectors of science and technology. In order to meet the potential requirements for energy production or producing secondary raw material, solid waste may be the prime source. The activities of living organisms convert waste products in one form or another in which electronic waste (e-waste) is a modern-day problem that is growing by leaps and bounds. The disposal protocols of the e-waste management need to be given proper attention to avoid its hazardous impacts. The e-waste is obtained from any equipment or devices that run by electricity or batteries like laptops, palmtops, computers, televisions, mobile phones, digital video discs (DVD), and many more. E-waste is one of the rapidly growing causes of world pollution today. Plenty of research is available in the scientific literature, which shows different approaches being set up and followed to manage and dispose of waste products. These strategies to manage waste products designed by the states all over the globe revolves around minimal production, authentic techniques for the management of waste produced, reuse and recycling, etc. The virtual survey of the available literature on waste management shows that it lacks specificity regarding the management of waste products parallel to ecological sustainability. The presented review covers the sources, potential environmental impacts, and highlights the importance of waste management strategies to provide the latest and updated knowledge. The review also put forward the countermeasures that need to be taken on national and International levels addressing the sensitive issue of waste management.
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Affiliation(s)
- Zhen Zhang
- Zhejiang Provincial Key Laboratory of Evolutionary Ecology and Conservation, Taizhou University, Taizhou, Zhejiang Province 318000, China
| | - Muhammad Zeeshan Malik
- School of Electronics and Information Engineering, Taizhou University, Taizhou 318000, Zhejiang, China.
| | - Adnan Khan
- Institute of Chemical Sciences, University of Peshawar, Peshawar, Khyber Pakhtunkhwa, Pakistan
| | - Nisar Ali
- Key Laboratory for Palygorskite Science and Applied Technology of Jiangsu Province, National & Local Joint Engineering Research Center for Deep Utilization Technology of Rock-salt Resource, Faculty of Chemical Engineering, Huaiyin Institute of Technology, Huaian, China
| | - Sumeet Malik
- Institute of Chemical Sciences, University of Peshawar, Peshawar, Khyber Pakhtunkhwa, Pakistan
| | - Muhammad Bilal
- School of Life Science and Food Engineering, Huaiyin Institute of Technology, Huaian 223003, China
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Patrício Silva AL, Tubić A, Vujić M, Soares AMVM, Duarte AC, Barcelò D, Rocha-Santos T. Implications of COVID-19 pandemic on environmental compartments: Is plastic pollution a major issue? JOURNAL OF HAZARDOUS MATERIALS ADVANCES 2022; 5:100041. [PMID: 36743854 PMCID: PMC8702633 DOI: 10.1016/j.hazadv.2021.100041] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/21/2021] [Revised: 11/28/2021] [Accepted: 12/21/2021] [Indexed: 02/07/2023]
Abstract
The COVID-19 anthropause has impacted human activities and behaviour, resulting in substantial environmental and ecological changes. It has assisted in restoring the ecological systems by improving, for instance, air and water quality and decreasing the anthropogenic pressure on wildlife and natural environments. Notwithstanding, such improvements recessed back, even to a greater extent, when considering increased medical waste, hazardous disinfectants and other chemical compounds, and plastic waste disposal or mismanagement. This work critically reviews the short- and long-term implications of measures against COVID-19 spreading, namely on human activities and different environmental compartments. Furthermore, this paper highlights strategies towards environmental restoration, as the recovery of the lost environment during COVID-19 lockdown suggests that the environmental degradation caused by humans can be reversible. Thus, we can no longer delay concerted international actions to address biodiversity, sustainable development, and health emergencies to ensure environmental resilience and equitable recovery.
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Affiliation(s)
- Ana L Patrício Silva
- Centre for Environmental and Marine Studies (CESAM) and Department of Biology, University of Aveiro, Aveiro 3810-193, Portugal
| | - Aleksandra Tubić
- Department of Chemistry, Biochemistry and Environmental Protection, Faculty of Sciences, University of Novi Sad, Trg Dositeja Obradovića 3, Novi Sad 21000, Serbia
| | - Maja Vujić
- Department of Chemistry, Biochemistry and Environmental Protection, Faculty of Sciences, University of Novi Sad, Trg Dositeja Obradovića 3, Novi Sad 21000, Serbia
| | - Amadeu M V M Soares
- Centre for Environmental and Marine Studies (CESAM) and Department of Biology, University of Aveiro, Aveiro 3810-193, Portugal
| | - Armando C Duarte
- Centre for Environmental and Marine Studies (CESAM) & Department of Chemistry, University of Aveiro, Aveiro 3810-193, Portugal
| | - Damià Barcelò
- Catalan Institute for Water Research (ICRA-CERCA), Scientific and Technological Park of the University of Girona, H2O Building, Emili Grahit 101, Girona 17003, Spain
- Water and Soil Quality Research Group, Department of Environmental Chemistry, Institute of Environmental Assessment and Water Research (IDAEA-CSIC), Jordi Girona 18-26, Barcelona 08034, Spain
| | - Teresa Rocha-Santos
- Centre for Environmental and Marine Studies (CESAM) & Department of Chemistry, University of Aveiro, Aveiro 3810-193, Portugal
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Muche M, Yemata G, Molla E, Muasya AM, Tsegay BA. COVID-19 lockdown and natural resources: a global assessment on the challenges, opportunities, and the way forward. BULLETIN OF THE NATIONAL RESEARCH CENTRE 2022; 46:20. [PMID: 35125859 PMCID: PMC8800433 DOI: 10.1186/s42269-022-00706-2] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/30/2021] [Accepted: 01/18/2022] [Indexed: 05/19/2023]
Abstract
BACKGROUND The Coronavirus (COVID-19) is a global pandemic caused by SARS-CoV-2, which has an enormous effect on human lives and the global environment. This review aimed to assess the global scientific evidence on the impact of COVID-19 lockdown on natural resources using international databases and search engines. Thus, the unprecedented anthropause due to COVID-19 has positive and negative effects on natural resources. MAIN BODY This review showed that the unprecedented pandemic lockdown events brought a negative impact on the physical environment, including pollution associated with a drastic increase in person protective equipment, deforestation, illegal poaching and logging, overfishing, disruption of the conservation program and projects. It is noted that the spread of pandemic diseases could be aggravated by environmental pollution and a rapid increase in the global population. Despite these negative impacts of COVID-19, the anthropause appear to have also several positive effects on natural resources such as short term reduction of indoor and outdoor environmental pollutants (PM2.5, PM10, NO2, SO2, CO, and CO2), reduction in noise pollutions from ships, boats, vehicles, and planes which have positive effects on aquatic ecosystems, water quality, birds behaviour, wildlife biodiversity, and ecosystem restoration. CONCLUSION Therefore, governments and scientific communities across the globe have called for a green recovery to COVID-19 and implement multi-actor interventions and environmentally friendly technologies to improve and safeguard sustainable environmental and biodiversity management and halt the next pandemic.
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Affiliation(s)
- Meseret Muche
- Department of Biology, Woldia University, P.O. Box 400, Woldia, Ethiopia
| | - Getahun Yemata
- Department of Biology, Bahir Dar University, Bahir Dar, Ethiopia
| | - Eyayu Molla
- Deparment of Natural Resource Management, College of Agriculture and Environmental Sciences, Bahir Dar University, Bahir Dar, Ethiopia
| | - A. Muthama Muasya
- Department of Biological Sciences, University of Cape Town, Rondebosch, 7700 South Africa
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Bhat RA, Singh DV, Qadri H, Dar GH, Dervash MA, Bhat SA, Unal BT, Ozturk M, Hakeem KR, Yousaf B. Vulnerability of municipal solid waste: An emerging threat to aquatic ecosystems. CHEMOSPHERE 2022; 287:132223. [PMID: 34537459 DOI: 10.1016/j.chemosphere.2021.132223] [Citation(s) in RCA: 20] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/23/2021] [Revised: 08/24/2021] [Accepted: 09/07/2021] [Indexed: 06/13/2023]
Abstract
Dumping waste materials into aquatic ecosystems leads to pollution, which directly and indirectly poses a danger to all life forms. Currently, huge quantities of wastes are generated at a global scale with varying constituents, including organic fractions, emerging contaminants and toxic metals. These wastes release concentrated contaminants (leachates), which are lethal for all ecosystems around the globe because they contain varying concentrations of chemical constituents with BOD5 and COD in the order of 2 × 104-2.7 × 104 mg/L, and 3.4 × 104-3.8 × 104 mg/L, respectively. Herein, in-depth knowledge of municipal solid waste dumping into the aquatic ecosystems, changes in physicochemical characteristics, availability of in-/organic contaminants, and long-term unhealthy effects are presented. Moreover, an attempt has been made here to summarize the facts related to identifying the deadly impacts of waste on different ecosystem components. The unresolved challenges of municipal waste management are emphasized, which will help employ suitable waste management techniques and technologies to conserve the everlasting freshwater resources on earth.
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Affiliation(s)
- Rouf Ahmad Bhat
- Division of Environment Science, Sher-e-Kashmir University of Agricultural Sciences and Technology, Kashmir, India.
| | - Dig Vijay Singh
- Division of Environment Science, Sher-e-Kashmir University of Agricultural Sciences and Technology, Kashmir, India
| | - Humaira Qadri
- Department of Environmental Science, Sri Pratap College, Cluster University Srinagar, India
| | - Gowhar Hamid Dar
- Department of Environmental Science, Sri Pratap College, Cluster University Srinagar, India
| | - Moonisa Aslam Dervash
- Division of Environment Science, Sher-e-Kashmir University of Agricultural Sciences and Technology, Kashmir, India
| | - Shakeel Ahmad Bhat
- Division of Soil and Water Engineering, COAE&T,Sher-e-Kashmir University of Agricultural Sciences and Technology, Kashmir, India
| | - Bengu Turkyilmaz Unal
- Department of Biotechnology, Arts and Science Faculty, Niğde Ömer Halisdemir University, Niğde, Turkey
| | - Munir Ozturk
- Botany Department & Centre for Environmental Studies, Ege University, Izmir, Turkey
| | - Khalid Rehman Hakeem
- Department of Biological Sciences, Faculty of Science, KAU, Jeddah, Saudi Arabia
| | - Balal Yousaf
- CAS-Key Laboratory of Crust-Mantle Materials and the Environments, School of Earth and Space Sciences, University of Science and Technology of China, Hefei, 230026, China; Environmental Engineering Department, Middle East Technical University, Ankara, 06800, Turkey.
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Anser MK, Godil DI, Khan MA, Nassani AA, Zaman K, Abro MMQ. The impact of coal combustion, nitrous oxide emissions, and traffic emissions on COVID-19 cases: a Markov-switching approach. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2021; 28:64882-64891. [PMID: 34322805 PMCID: PMC8318325 DOI: 10.1007/s11356-021-15494-x] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/20/2021] [Accepted: 07/13/2021] [Indexed: 05/06/2023]
Abstract
The severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) spread to more than 200 countries with a current case fatality ratio (CFR) of more than 2% globally. The concentration of air pollutants is considered a critical factor responsible for transmitting coronavirus disease among the masses. The photochemical process and coal combustions create respiratory disorders that lead to coronavirus disease. Based on the crucial fact, the study evaluated the impact of nitrous oxide (N2O) emissions, coal combustion, and traffic emissions on COVID-19 cases in a panel of 39 most affected countries of the world. These three air pollution factors are considered to form a lethal smog that negatively affects the patient's respiratory system, leading to increased susceptibility to coronavirus worldwide. The study used the Markov two-step switching regime regression model for obtaining parameter estimates. In contrast, an innovation accounting matrix is used to assess smog factors' intensity on possibly increasing coronavirus cases over time. The results show that N2O emissions, coal combustion, and traffic emissions increase COVID-19 cases in regime-1. On the other hand, N2O emissions significantly increase coronavirus cases in regime-2. The innovation accounting matrix shows that N2O emissions would likely have a more significant share of increasing coronavirus cases with a variance of 33.902%, followed by coal combustion (i.e., 6.643%) and traffic emissions (i.e., 2.008%) over the time horizon. The study concludes that air quality levels should be maintained through stringent environmental policies, such as carbon pricing, sustainable urban planning, green technology advancement, renewable fuels, and pollution less accessible vehicles. All these measures would likely decrease coronavirus cases worldwide.
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Affiliation(s)
- Muhammad Khalid Anser
- School of Public Administration, Xi’an University of Architecture and Technology, Xi’an, 710000 China
| | | | - Muhammad Azhar Khan
- Department of Economics, University of Haripur, Haripur, Khyber Pakhtunkhwa 22620 Pakistan
| | - Abdelmohsen A. Nassani
- Department of Management, College of Business Administration, King Saud University, P.O. Box 71115, Riyadh, 11587 Saudi Arabia
| | - Khalid Zaman
- Department of Economics, University of Haripur, Haripur, Khyber Pakhtunkhwa 22620 Pakistan
| | - Muhammad Moinuddin Qazi Abro
- Department of Management, College of Business Administration, King Saud University, P.O. Box 71115, Riyadh, 11587 Saudi Arabia
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Sher F, Raore D, Klemeš JJ, Rafi-ul-Shan PM, Khzouz M, Marintseva K, Razmkhah O. Unprecedented Impacts of Aviation Emissions on Global Environmental and Climate Change Scenario. CURRENT POLLUTION REPORTS 2021; 7:549-564. [PMID: 34777950 PMCID: PMC8578007 DOI: 10.1007/s40726-021-00206-3] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Accepted: 10/18/2021] [Indexed: 05/30/2023]
Abstract
There has been a continuously growing trend in international commercial air traffic, with the exception of COVID-19 crises; however, after the recovery, the trend is expected to even sharpen. The consequences of released emissions and by-products in the environment range from human health hazards, low air quality and global warming. This study is aimed to investigate the role of aviation emissions in global warming. For this purpose, data on different variables including global air traffic and growth rate, air traffic in different continents, total global CO2 emissions of different airlines, direct and indirect emissions, air traffic in various UK airports and fuel-efficient aircraft was collected from various sources like EU member states, Statista, Eurostat, IATA, CAA and EUROCONTROL. The results indicated that in 2019, commercial airlines carried over 4.5 × 109 passengers on scheduled flights. However, due to the COVID-19 pandemic in 2020, the global number of passengers was reduced to 1.8 × 109, representing around a 60% reduction in air traffic. Germany was the largest contributor to greenhouse gas (GHG) from the EU, releasing 927 kt of emissions in 3 years. In the UK, Heathrow airport had the highest number of passengers in 2019 with over 80 million, and the study of monthly aircraft movement revealed that Heathrow Airport also had the highest number of EU and International flights, while Edinburgh had the domestic flights in 2018. These research findings could be beneficial for airlines, policymakers and governments targeting the reduction of aircraft emissions.
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Affiliation(s)
- Farooq Sher
- Department of Engineering, School of Science and Technology, Nottingham Trent University, Nottingham, NG11 8NS UK
| | - David Raore
- School of Mechanical, Aerospace and Automotive Engineering, Faculty of Engineering, Environmental and Computing, Coventry University, Coventry, CV1 5FB UK
| | - Jiří Jaromír Klemeš
- Sustainable Process Integration Laboratory – SPIL, Faculty of Mechanical Engineering, NETME Centre, Brno University of Technology - VUT Brno, Technická 2896/2, 616 69 Brno, Czech Republic
| | | | - Martin Khzouz
- School of Mechanical, Aerospace and Automotive Engineering, Faculty of Engineering, Environmental and Computing, Coventry University, Coventry, CV1 5FB UK
- Department of Systems Engineering, Military Technological College, Al Matar Street, Muscat, 111 Oman
| | - Kristina Marintseva
- School of Mechanical, Aerospace and Automotive Engineering, Faculty of Engineering, Environmental and Computing, Coventry University, Coventry, CV1 5FB UK
| | - Omid Razmkhah
- School of Mechanical, Aerospace and Automotive Engineering, Faculty of Engineering, Environmental and Computing, Coventry University, Coventry, CV1 5FB UK
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Marques MBL, Brunetti IA, Faleiros CA, da Cruz C, Iqbal HMN, Bilal M, Américo-Pinheiro JHP. Ecotoxicological Assessment and Environmental Risk of the Insecticide Chlorpyrifos for Aquatic Neotropical Indicators. WATER AIR AND SOIL POLLUTION 2021. [DOI: 10.1007/s11270-021-05369-9] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
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27
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Hussain A, Rafeeq H, Asif HM, Shabbir S, Bilal M, Mulla SI, Franco M, Iqbal HMN. Current scenario of COVID-19 vaccinations and immune response along with antibody titer in vaccinated inhabitants of different countries. Int Immunopharmacol 2021; 99:108050. [PMID: 34426120 PMCID: PMC8343376 DOI: 10.1016/j.intimp.2021.108050] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/25/2021] [Revised: 07/08/2021] [Accepted: 08/04/2021] [Indexed: 02/08/2023]
Abstract
The COVID-19 pandemic challenges have been only partially addressed so far. The pathogenicity of SARS-CoV-2 is considered the combination of severe and high infectivity. Herdimmunity is attained when a critical proportion of the population is immune, providing the virus with fewer chances to spread locally. To overcome the rising tide of the COVID-19 pandemic, efficacious and safe vaccines providing defensive and long-lasting immunity responses are urgently needed.Vaccines that induce virus-neutralizing antibodies with great affinity can optimally fight against infection. Worldwide, over 120 novel vaccine candidates, including live-attenuated, inactivated, viral-vectored nonreplicating and replicating, peptide- and protein-based, and nucleic acid-based approaches are in the process of preclinical and clinical trials (phase 1-4). In addition to comprehensive safety assessments and immune responses, precise clinical management is also important for trials of vaccines. The recent emergence of different variants of SARS-CoV-2 is becoming a new threat for the world and a challenge for scientists to introduce the most influential vaccine against COVID-19. The possibility of natural and vaccine-induced immunity in variants finds it necessary to establish next-generation vaccines, which generate general neutralization against existing and future variants. Here, we summarize the cellular and humoral responses of SARS-CoV-2, current progress in vaccination development, the antibody titer response of available phase 4 vaccinations in vaccinated populations of different countries worldwide, and the success and challenges ahead of vaccine development.
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Affiliation(s)
- Asim Hussain
- Department of Biochemistry, Riphah International University, Faisalabad, Pakistan
| | - Hamza Rafeeq
- Department of Biochemistry, Riphah International University, Faisalabad, Pakistan
| | - Hafiza Memoona Asif
- Department of Biochemistry, University of Agriculture, Faisalabad 38000, Pakistan
| | - Sumaira Shabbir
- Department of Zoology, Wildlife and Fisheries, University of Agriculture, Faisalabad 38000, Pakistan
| | - Muhammad Bilal
- School of Life Science and Food Engineering, Huaiyin Institute of Technology, Huai'an 223003, China.
| | - Sikandar I Mulla
- Department of Biochemistry, School of Applied Sciences, REVA University, Bangalore 560064, India
| | - Marcelo Franco
- Departament of Exact Sciences and Technology, State University of Santa Cruz, Ilhéus, Brazil
| | - Hafiz M N Iqbal
- Tecnologico de Monterrey, School of Engineering and Sciences, Monterrey 64849, Mexico.
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28
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Covalent Organic Frameworks for Simultaneous CO2 Capture and Selective Catalytic Transformation. Catalysts 2021. [DOI: 10.3390/catal11091133] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022] Open
Abstract
Combination of capture and simultaneous conversion of CO2 into valuable chemicals is a fascinating strategy for reducing CO2 emissions. Therefore, searching for heterogeneous catalysts for efficient catalytic conversion of CO2 is of great importance for carbon capture and utilization. Herein, we report a metalloporphyrin-based covalent organic framework (Co(II)@TA-TF COF) that can capture CO2 and simultaneously convert it into cyclic carbonates under mild conditions. The COF was designed to possess micropores for the adsorption of CO2 and integrated with cobalt(II) porphyrin (Co(II)@TAPP) units as catalytic sites into the vertices of the layered tetragonal networks. The structure of the Co(II)@TA-TF COF is unique where Co(II)@TAPP units are alternately stacked along the z direction with a slipped distance of 1.7 Å, which gives an accessible space to accommodate small molecules, making it possible to expose catalytic sites to substrates within the adjacent stacked layers. As a result, this COF is found to be highly effective for the addition of CO2 and epoxides. Importantly, the Co(II)@TA-TF COF exhibited a dramatic size selectivity for substrates. In conjunction with its reusability, our results highlight the development of a new function of COFs for targeting simultaneous CO2 absorption and utilization upon complementary exploration of the structural features of skeletons and pores. Such promising catalytic performance of the COF makes it possible for its potential practical application.
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29
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Hashim BM, Al-Naseri SK, Al Maliki A, Sa’adi Z, Malik A, Yaseen ZM. On the investigation of COVID-19 lockdown influence on air pollution concentration: regional investigation over eighteen provinces in Iraq. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2021; 28:50344-50362. [PMID: 33956319 PMCID: PMC8100943 DOI: 10.1007/s11356-021-13812-x] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/11/2021] [Accepted: 04/01/2021] [Indexed: 04/15/2023]
Abstract
At the end of 2019, a novel coronavirus COVID-19 emerged in Wuhan, China, and later spread throughout the world, including Iraq. To control the rapid dispersion of the virus, Iraq, like other countries, has imposed national lockdown measures, such as social distancing, restriction of automobile traffic, and industrial enterprises. This has led to reduced human activities and air pollutant emissions, which caused improvement in air quality. This study focused on the analysis of the impact of the six partial, total, and post-lockdown periods (1st partial lockdown from March 1 to16, 2020, 1st total lockdown from March 17 to April 21, 2nd partial lockdown from April 22 to May 23, 2nd total lockdown from May 24 to June 13, 3rd partial lockdown from June 14 to August 19, and end partial lockdown from August 20 to 31) on the average of daily NO2, O3, PM2.5, and PM10 concentrations, as well as air quality index (AQI) in 18 Iraqi provinces during these periods (from March 1st to August 31st, 2020). The analysis showed a decline in the average of daily PM2.5, PM10, and NO2 concentrations by 24%, 15%, and 8%, respectively from March 17 to April 21, 2020 (first phase of total lockdown) in comparison to the 1st phase of partial lockdown (March 1 to March 16, 2020). Furthermore, the O3 increased by 10% over the same period. The 2nd phase of total lockdown, the 3rd partial lockdown, and the post-lockdown periods witnessed declines in PM2.5 by 8%, 11%, and 21%, respectively, while the PM10 increases over the same period. Iraqi also witnessed improvement in the AQI by 8% during the 1st phase of total lockdown compared to the 1st phase of partial lockdown. The level of air pollutants in Iraq declined significantly during the six lockdown periods as a result of reduced human activities. This study gives confidence that when strict measures are implemented, air quality can improve.
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Affiliation(s)
| | - Saadi K. Al-Naseri
- Environment and water Directorate, Ministry of Science and Technology, Baghdad, Iraq
| | - Ali Al Maliki
- Environment and water Directorate, Ministry of Science and Technology, Baghdad, Iraq
| | - Zulfaqar Sa’adi
- Centre for Environmental Sustainability and Water Security (IPASA), School of Civil Engineering, Faculty of Engineering, Universiti Teknologi Malaysia, 81310 UTM Sekudai, Johor Malaysia
| | - Anurag Malik
- Punjab Agricultural University, Regional Research Station, Bathinda, Punjab India
| | - Zaher Mundher Yaseen
- New era and development in civil engineering research group, Scientific Research Center, Al-Ayen University, Thi-Qar, 64001, Iraq
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30
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Quantifying Air Pollutant Variations during COVID-19 Lockdown in a Capital City in Northwest China. ATMOSPHERE 2021. [DOI: 10.3390/atmos12060788] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
In the context of the outbreak of coronavirus disease 2019 (COVID-19), strict lockdown policies were implemented to control nonessential human activities in Xi’an, northwest China, which greatly limited the spread of the pandemic and affected air quality. Compared with pre-lockdown, the air quality index and concentrations of PM2.5, PM10, SO2, and CO during the lockdown reduced, but the reductions were not very significant. NO2 levels exhibited the largest decrease (52%) during lockdown, owing to the remarkable decreased motor vehicle emissions. The highest K+ and lowest Ca2+ concentrations in PM2.5 samples could be attributed to the increase in household biomass fuel consumption in suburbs and rural areas around Xi’an and the decrease in human physical activities in Xi’an (e.g., human travel, vehicle emissions, construction activities), respectively, during the lockdown period. Secondary chemical reactions in the atmosphere increased in the lockdown period, as evidenced by the increased O3 level (increased by 160%) and OC/EC ratios in PM2.5 (increased by 26%), compared with pre-lockdown levels. The results, based on a natural experiment in this study, can be used as a reference for studying the formation and source of air pollution in Xi’an and provide evidence for establishing future long-term air pollution control policies.
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Did Noise Pollution Really Improve during COVID-19? Evidence from Taiwan. SUSTAINABILITY 2021. [DOI: 10.3390/su13115946] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
Background and objectives: The impacts of COVID-19 are like two sides of one coin. During 2020, there were many research papers that proved our environmental and climate conditions were improving due to lockdown or large-scale restriction regulations. In contrast, the economic conditions deteriorated due to disruption in industry business activities and most people stayed at home and worked from home, which probably reduced the noise pollution. Methods: To assess whether there were differences in noise pollution before and during COVID-19. In this paper, we use various statistical methods following odds ratios, Wilcoxon and Fisher’s tests and Bayesian Markov chain Monte Carlo (MCMC) with various comparisons of prior selection. The outcome of interest for a parameter in Bayesian inference is complete posterior distribution. Roughly, the mean of the posterior will be clear with point approximation. That being said, the median is an available choice. Findings: To make the Bayesian MCMC work, we ran the sampling from the conditional posterior distributions. It is straightforward to draw random samples from these distributions if they have regular shapes using MCMC. The case of over-standard noise per time frame, number of noise petition cases, number of industry petition cases, number of motorcycles, number of cars and density of vehicles are significant at α=5%. In line with this, we prove that there were differences of noise pollution before and during COVID-19 in Taiwan. Meanwhile, the decreased noise pollution in Taiwan can improve quality of life.
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Evolution of Gaseous and Particulate Pollutants in the Air: What Changed after Five Lockdown Weeks at a Southwest Atlantic European Region (Northwest of Spain) Due to the SARS-CoV-2 Pandemic? ATMOSPHERE 2021. [DOI: 10.3390/atmos12050562] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
Due to the exponential growth of the SARS-CoV-2 pandemic in Spain (2020), the Spanish Government adopted lockdown measures as mitigating strategies to reduce the spread of the pandemic from 14 March. In this paper, we report the results of the change in air quality at two Atlantic Coastal European cities (Northwest Spain) during five lockdown weeks. The temporal evolution of gaseous (nitrogen oxides, comprising NOx, NO, and NO2; sulfur dioxide, SO2; carbon monoxide, CO; and ozone, O3) and particulate matter (PM10; PM2.5; and equivalent black carbon, eBC) pollutants were recorded before (7 February to 13 March 2020) and during the first five lockdown weeks (14 March to 20 April 2020) at seven air quality monitoring stations (urban background, traffic, and industrial) in the cities of A Coruña and Vigo. The influences of the backward trajectories and meteorological parameters on air pollutant concentrations were considered during the studied period. The temporal trends indicate that the concentrations of almost all species steadily decreased during the lockdown period with statistical significance, with respect to the pre-lockdown period. In this context, great reductions were observed for pollutants related mainly to fossil fuel combustion, road traffic, and shipping emissions (−38 to −78% for NO, −22 to −69% for NO2, −26 to −75% for NOx, −3 to −77% for SO2, −21% for CO, −25 to −49% for PM10, −10 to −38% for PM2.5, and −29 to −51% for eBC). Conversely, O3 concentrations increased from +5 to +16%. Finally, pollutant concentration data for 14 March to 20 April of 2020 were compared with those of the previous two years. The results show that the overall air pollutants levels were higher during 2018–2019 than during the lockdown period.
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Chang L, Huang S, Zhao X, Hu Y, Ren X, Mei X, Chen Z. Preparation of ROS active and photothermal responsive hydroxyapatite nanoplatforms for anticancer therapy. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2021; 125:112098. [PMID: 33965108 DOI: 10.1016/j.msec.2021.112098] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/18/2021] [Revised: 03/25/2021] [Accepted: 04/04/2021] [Indexed: 12/14/2022]
Abstract
Photothermal responsive nanoplatforms are attracting for photothermal therapy (PTT) of cancer. Herein, we propose a strategy to prepare IR-780 modified hydroxyapatite (HAP) nanorods as photothermic agents (HAP@IR-780). The results demonstrated that the obtained HAP@IR-780 was photothermal responsive under near-infrared laser irradiation the photothermal conversion efficiency was 69.3%, and it remained photostability after 4 cycles of irradiation. This advantage overcomes the optical instability of IR780. MTT and cellular uptake research proved that HAP@IR-780 was biocompatible in appropriate concentration range (0-20 μg/mL) without laser irradiation. Concentration-dependent internalization and reactive oxygen species (ROS) related apoptosis of HAP@IR-780 for MCF-7 cells were observed. Animal experiments showed that the gathered HAP@IR-780 at the tumor site reached a photothermal responsive temperature up to 57.9 °C, which could almost ablate the tumor with volumes as large as 1500 mm3. In general, our photothermal material has good photothermal conversion characteristics, and may have the least safety problems while showing excellent therapeutic effects. Therefore, HAP@IR-780 has a brilliant prospect in the field of tumor photothermal therapy.
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Affiliation(s)
- Linna Chang
- Jinzhou Medical University, Jinzhou 121001, Liaoning, China
| | | | - Xingjun Zhao
- Jinzhou Medical University, Jinzhou 121001, Liaoning, China
| | - Yanan Hu
- Jinzhou Medical University, Jinzhou 121001, Liaoning, China
| | - Xiuli Ren
- Jinzhou Medical University, Jinzhou 121001, Liaoning, China.
| | - Xifan Mei
- Jinzhou Medical University, Jinzhou 121001, Liaoning, China.
| | - Zhenhua Chen
- Jinzhou Medical University, Jinzhou 121001, Liaoning, China.
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Zhou Y, Yan X, Ma F, Xia Q, Lu Y, Li W, Song S, Sun Y, Ma Y, Ma Y. Effects of moxibustion for COVID-19 convalescence: A protocol for systematic review and meta-analysis. Medicine (Baltimore) 2021; 100:e25389. [PMID: 33832128 PMCID: PMC8036045 DOI: 10.1097/md.0000000000025389] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/10/2021] [Accepted: 03/14/2021] [Indexed: 01/05/2023] Open
Abstract
BACKGROUND Coronavirus disease 2019 (COVID-19) is still spreading around the world. Moxibustion, as a significant therapy in traditional Chinese medicine (TCM), has been widely used to treat COVID-19, especially in recovery period. The study will aim to assess the efficacy and safety of moxibustion for COVID-19 convalescence. METHODS We will systematically search the relevant randomized controlled trials in the 7 databases from inception to February 2021, including PubMed, MEDLINE, Embase, Cochrane Clinical Trials Database, Web of Science, China National Knowledge Infrastructure and Chinese Biomedical Literature Database. No language and publication status restrictions will be applied. Two reviewers will independently conduct and screen all included studies and the meta-analysis will be performed with RevMan V5.3 (The Cochrane Collaboration, Oxford, England). RESULTS The study will provide a high-quality convincing assessment of the efficacy and safety of moxibustion for the treatment of COVID-19 convalescence, which will be published in a peer-reviewed journal. CONCLUSION Our study will give more comprehensive evidence of the effectiveness of moxibustion for COVID-19 convalescence. TRIAL REGISTRATION NUMBER CRD42021230364.
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Affiliation(s)
- Yue Zhou
- Shandong University of Traditional Chinese Medicine
| | - Xiao Yan
- Shandong University of Traditional Chinese Medicine
| | - Fengjun Ma
- Shandong University of Traditional Chinese Medicine
| | | | - Yunping Lu
- Shandong University of Traditional Chinese Medicine
| | - Wenyuan Li
- Affiliated Hospital of Shandong University of Traditional Chinese Medicine, Jinan, Shandong, China
| | - Shuai Song
- Affiliated Hospital of Shandong University of Traditional Chinese Medicine, Jinan, Shandong, China
| | - Yan Sun
- Shandong University of Traditional Chinese Medicine
| | - Yuxia Ma
- Shandong University of Traditional Chinese Medicine
| | - Yuning Ma
- Shandong University of Traditional Chinese Medicine
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Azra MN, Noor MIM, Ikhwanuddin M, Ahmed N. Global trends on Covid-19 and food security research: A scientometric study. ADVANCES IN FOOD SECURITY AND SUSTAINABILITY 2021. [PMCID: PMC8426152 DOI: 10.1016/bs.af2s.2021.07.005] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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