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1.
Environ Monit Assess ; 195(6): 789, 2023 Jun 01.
Artigo em Inglês | MEDLINE | ID: covidwho-20242704

RESUMO

Environmental Management Systems (EMS) are currently the cornerstone of achieving sustainability globally. Nevertheless, the question is applicability of EMS in the medical sector. Hence, the review focused on applicability of EMS in medical waste management Zimbabwe. EMS involves overall processes that facilitate reduction of dire impacts of company's activities while increasing performance. EMS framework consists of environmental policy, planning, implementation, checking, review and improvement stages. To examine applicability of EMS in management of medical sector waste, published secondary sources with information related to the topic were utilised. Analysis of strengths and opportunities of EMS was used as a base to examine its applicability in medical waste management. Zimbabwean medical sector consist of hospitals and primary healthcare facilities. Medical waste includes pathological, pharmaceutical, cytotoxic, radioactive, chemical, sharp, infectious and general waste. However, twenty-first century witnessed expansion of medical institutions to accommodate COVID-19 patients, resulting in generation of construction and demotion waste. Medical institutions in Zimbabwe are accountable for solid waste management at generation source although municipalities are responsible for conveying solid waste to landfills. Solid waste from medical sector is disposed through traditional strategies namely landfilling, incineration, open pits and open burning, resulting in water, air, and soil contamination. However, EMS can reduce quantity of solid waste disposed through waste reuse, recycle and recovery. Moreover, achievement of integrated approach, effective legislation, policies and inclusive participation in medical waste management is adopted through use of EMS. Therefore, EMS were utilised to develop an integrated sustainable medical waste management model to achieve sustainability.


Assuntos
COVID-19 , Resíduos de Serviços de Saúde , Eliminação de Resíduos , Gerenciamento de Resíduos , Humanos , Resíduos Sólidos/análise , Zimbábue , Conservação dos Recursos Naturais , Monitoramento Ambiental , Gerenciamento de Resíduos/métodos , Instalações de Eliminação de Resíduos , Resíduos de Serviços de Saúde/análise , Eliminação de Resíduos/métodos
2.
Environ Sci Pollut Res Int ; 30(25): 67368-67377, 2023 May.
Artigo em Inglês | MEDLINE | ID: covidwho-2298456

RESUMO

Municipal solid waste leachate-based epidemiology is an alternative viral tracking tool that applies fresh truck leachate as an early warning of public health emergencies. This study aimed to investigate the potential of SARS-CoV-2 surveillance based on solid waste fresh truck leachate. Twenty truck leachate samples were ultracentrifugated, nucleic acid extracted, and real-time RT-qPCR SARS-CoV-2 N1/N2 applied. Viral isolation, variant of concern (N1/N2) inference, and whole genome sequencing were also performed. SARS-CoV-2 was detected on 40% (8/20) of samples, with a concentration from 2.89 to 6.96 RNA Log10 100 mL-1. The attempt to isolate SARS-CoV-2 and recover the whole genome was not successful; however, positive samples were characterized as possible pre-variant of concern (pre-VOC), VOC Alpha (B.1.1.7) and variant of interest Zeta (P.2). This approach revealed an alternative tool to infer SARS-CoV-2 in the environment and may help the management of local surveillance, health, and social policies.


Assuntos
COVID-19 , Humanos , Brasil , SARS-CoV-2 , Resíduos Sólidos
3.
PLoS One ; 18(4): e0284985, 2023.
Artigo em Inglês | MEDLINE | ID: covidwho-2291496

RESUMO

BACKGROUND: The use of motor tricycles in transporting municipal solid waste (MSW) within urban and peri-urban towns in Ghana is on the increase. This activity often leads to the introduction of pathogen-containing bioaerosols into the environment, as well as to the tricycle operators. We sought to investigate the prevalence and associated risk factors of respiratory pathogens among solid waste tricycle operators. METHODS: A cross-sectional study was conducted among 155 solid waste transporters who use motor tricycles using semi-structured interviews. Nasopharyngeal swabs were obtained from participants and screened for respiratory pathogens using Polymerase Chain Reaction (PCR). RESULTS: Pathogens detected in participants were SARS-CoV-2 (n = 10, 6.5%) and Streptococcus pneumoniae (n = 10, 6.5%), constituting an overall prevalence of 12.9% and co-infection rate of 1.3%. The most common self-reported symptoms were cough (n = 67, 43.2%), sore throat (n = 44, 28.4%) and difficulty in breathing (n = 22, 14.2%). Adherence to the use of gloves (n = 117, 75.5%) and nose mask (n = 110, 71.0%) was high. There was a significant association between the detection of respiratory pathogens and the use of gloves, use of more than one PPE and exposure to other pollutants (p < 0.05). Individuals who were exposed to "other pollutants" significantly had lower odds of becoming infected with respiratory pathogens (Adj. OR (95% CI): 0.119(0.015,0.938). CONCLUSION: Although prevalence of respiratory pathogens is generally low, strict adherence to PPE use could further reduce its rates to even lower levels. Governmental health institutions and informal solid waste transporters should address challenges related to exposure to pollutants, use of gloves, and multiple PPE.


Assuntos
COVID-19 , Resíduos Sólidos , Humanos , SARS-CoV-2 , Gana , Estudos Transversais , Autorrelato
4.
Int J Environ Res Public Health ; 20(5)2023 03 03.
Artigo em Inglês | MEDLINE | ID: covidwho-2254581

RESUMO

Based on the related environmental data of Chengdu and Chongqing from 2011 to 2020, this paper constructs a multivariate environment performance evaluation system, combines the self-built indicator system determination criteria and rules, evaluates and compares the environmental performance of Chengdu and Chongqing, and also discusses the impact of COVID-19 on urban environmental performance. The research results show that the overall environmental performance increased from 2011 to 2020, but there are differences between different subsystems, mainly manifested in the best water environment performance, followed by air environment and solid waste; moreover, the noise environment maintains a relatively stable level. By comparing the average levels of various subsystems of the Chengdu-Chongqing dual cities from 2011 to 2020, it can be seen that Chengdu City has better environmental performance in air environment and solid waste, while Chongqing City has better environmental performance in the water environment and noise environment. In addition, this paper also found that the impact of the epidemic on urban environmental performance mainly comes from the impact on the air environment. At present, the overall environmental performance of the two places has shown a trend of environmentally coordinated development. In the future, Chengdu and Chongqing should further optimize and improve their relatively weak environmental subsystems, deepen the joint action mechanism between the two places, and build a green and high-quality development economic circle for the Chengdu-Chongqing twin cities.


Assuntos
COVID-19 , Resíduos Sólidos , Humanos , Cidades , China , Água
5.
Environ Pollut ; 321: 121080, 2023 Mar 15.
Artigo em Inglês | MEDLINE | ID: covidwho-2252530

RESUMO

Medical wastes include all solid and liquid wastes that are produced during the treatment, diagnosis, and immunisation of animals and humans. A significant proportion of medical waste is infectious, hazardous, radioactive, and contains potentially toxic elements (PTEs) (i.e., heavy metal (loids)). PTEs, including arsenic (As), cadmium (Cd), lead (Pb) and mercury (Hg), are mostly present in plastic, syringes, rubber, adhesive plaster, battery wastes of medical facilities in elemental form, as well as oxides, chlorides, and sulfates. Incineration and sterilisation are the most common technologies adopted for the safe management and disposal of medical wastes, which are primarily aimed at eliminating deadly pathogens. The ash materials derived from the incineration of hazardous medical wastes are generally disposed of in landfills after the solidification/stabilisation (S/S) process. In contrast, the ash materials derived from nonhazardous wastes are applied to the soil as a source of nutrients and soil amendment. The release of PTEs from medical waste ash material from landfill sites and soil application can result in ecotoxicity. The present study is a review paper that aims to critically review the dynamisms of PTEs in various environmental media after medical waste disposal, the environmental and health implications of their poor management, and the common misconceptions regarding medical waste.


Assuntos
Eliminação de Resíduos de Serviços de Saúde , Resíduos de Serviços de Saúde , Mercúrio , Metais Pesados , Eliminação de Resíduos , Animais , Humanos , Incineração , Metais Pesados/análise , Resíduos Perigosos/análise , Resíduos Sólidos/análise
6.
Environ Monit Assess ; 195(1): 155, 2022 Nov 28.
Artigo em Inglês | MEDLINE | ID: covidwho-2244587

RESUMO

The COVID-19 pandemic has greatly impacted the Americas, the continent with the highest number of COVID-related deaths according to WHO statistics. In Latin America, strict confinement conditions at the beginning of the pandemic put recycling activity to a halt and augmented the consumption of plastic as a barrier to stop the spread of the virus. The lack of data to understand waste management dynamics complicates waste management strategy adjustments aimed at coping with COVID-19. As a novel contribution to the waste management data gap for Latin America, this study uses a virtual and participatory methodology that collects and generates information on household solid waste generation and composition. Data was collected between June and November 2021 in six countries in Latin America, with a total of 503 participants. Participants indicated that the pandemic motivated them to initiate or increase waste reduction (41%), waste separation (40%), and waste recovery (33%) activities. Forty-three percent of participants perceived an increase in total volume of their waste; however, the quantitative data showed a decrease in household waste generation in Peru (-31%), Honduras (-25%), and Venezuela (-82%). No changes in waste composition were observed. Despite the limited sample size, this data provides a much-needed approximation of household waste generation and composition in the pandemic situation during 2021.


Assuntos
COVID-19 , Resíduos Sólidos , Humanos , COVID-19/epidemiologia , Pandemias , América Latina/epidemiologia , Monitoramento Ambiental
7.
Sci Total Environ ; 869: 161833, 2023 Apr 15.
Artigo em Inglês | MEDLINE | ID: covidwho-2211420

RESUMO

COVID-19 pandemic caused a significant increase in medical and infected domestic waste, greatly increasing risk of human infected with SARS-CoV-2. Therefore, it is critical to prevent the spread of SARS-CoV-2 from solid waste to humans. Current commercial disinfectants present a high carbon footprint issue. Hence, we prepared a renewable wheat straw-based bio-liquid that can damage SARS-CoV-2 RNA and protein. The wet thermochemical extraction (WTE) bio-liquid, with total organic carbon concentration exceeding 1892 mg/L, could effectively damage the virus. However, dry thermochemical extraction (DTE) samples were not efficient due to their low content of effective compounds. The life cycle assessment showed that WTE bio-liquid production implies lower energy and environmental negative impacts than DTE. Moreover, the process by-product, char, can simultaneously reduce 3.1 million tonnes of global CO2 emissions while used as coal substitute. Yield of bio-liquid extremely exceed commercial disinfectant with just 1 % wheat straw utilisation, which meet the demand of processing solid waste. Further, their costs are significantly lower than commercial disinfectants, which are suitable for developing countries. Therefore, the antiviral bio-liquid produced from agricultural straw can be a new way to meet the needs of preventing the spread of SARS-CoV-2 and resume the sustainable development of society.


Assuntos
COVID-19 , Desinfetantes , Humanos , Animais , Resíduos Sólidos , SARS-CoV-2 , Biomassa , Pandemias/prevenção & controle , RNA Viral , COVID-19/prevenção & controle , Pegada de Carbono , Estágios do Ciclo de Vida
8.
Int J Environ Res Public Health ; 19(17)2022 Sep 02.
Artigo em Inglês | MEDLINE | ID: covidwho-2216074

RESUMO

Solid-waste management is a challenge in many cities, especially in low-income countries, including Uganda. Simple and inexpensive strategies such as solid-waste segregation and recycling have the potential to reduce risks associated with indiscriminate waste management. Unfortunately, these strategies have not been studied and adopted in slums in low-income countries. This cross-sectional qualitative study, therefore, used the behavioral-centered design model to understand the drivers of recycling in Kampala slums. Data were coded using ATLAS ti version 7.0, and content analysis was used for interpreting the findings. Our findings revealed that the study practices were not yet habitual and were driven by the presence of physical space for segregation containers, and functional social networks in the communities. Additionally, financial rewards and awareness related to the recycling benefits, and available community support were found to be critical drivers. The availability of infrastructure and objects for segregation and recycling and the influence of politics and policies were identified. There is, therefore, need for both the public and private sector to engage in developing and implementing the relevant laws and policies on solid waste recycling, increase community awareness of the critical behavior, and create sustainable markets for waste segregated and recycled products.


Assuntos
Eliminação de Resíduos , Gerenciamento de Resíduos , Cidades , Estudos Transversais , Áreas de Pobreza , Reciclagem , Resíduos Sólidos/análise , Uganda
9.
J Environ Public Health ; 2022: 1066350, 2022.
Artigo em Inglês | MEDLINE | ID: covidwho-2138215

RESUMO

Plastic has been ingrained in our society. Repercussions on the usage of nonbiodegradable plastics and their problems have been recently realized. Despite its detrimental environmental impact, the COVID-19 epidemic has compelled worldwide citizens to increase their plastic use due to affordability and availability. The volume of hospital solid waste, particularly plastics, is overgrowing due to an unexpected increase in medical waste, culminating in the global waste management catastrophe. Henceforth, adopting good waste management practices along with appropriate technologies and viewing the current issue from a fresh perspective would be an opportunity in this current scenario. Accordingly, this review study will focus on the plastic waste scenario before and during the COVID-19 epidemic. This review also disseminates alternative disposal options and recommends practical solutions to lessen human reliance on traditional plastics. Further, the responsibilities of various legislative and regulatory authorities at the local, regional, and worldwide levels are addressed.


Assuntos
COVID-19 , Resíduos de Serviços de Saúde , Gerenciamento de Resíduos , COVID-19/epidemiologia , Humanos , Plásticos , Resíduos Sólidos
10.
Front Public Health ; 10: 1030283, 2022.
Artigo em Inglês | MEDLINE | ID: covidwho-2119717

RESUMO

In the context of the COVID-19 pandemic, the creation of healthy cities has become an important measure to deal with global public diseases and public health emergencies, and has had a profound impact on the management of municipal solid waste (MSW). This study exploits the Healthy Cities pilot (HCP) program established in 2016 as a natural experiment, and evaluates its impact on MSW management using the difference-in-difference (DID) method. The estimates show that the collection amount and harmless treatment capacity of MSW were increased by 15.66 and 10.75%, respectively, after the cities were established as pilot healthy cities. However, the harmless treatment rate was decreased by 3.544. This conclusion remains valid in a series of robustness tests, including parallel trend test, placebo test, propensity score matching (PSM)-DID, eliminating the interference of other policies, and eliminating the non-randomness of the policy. Mechanism analysis shows that the HCP program increased the collection amount and harmless treatment capacity of MSW by increasing the expenditure on MSW treatment. However, after a city was established as a pilot healthy city, the unsustainable high expenditure of local government on municipal sanitation led to the decrease in the harmless treatment rate of MSW. Moreover, heterogeneity analysis shows that the HCP program had a stronger impact on MSW management in cities with higher administrative levels, more obvious location advantages, and a larger size. Therefore, it is advisable to use the creation of healthy cities as an important tool to gradually improve MSW management, so as to realize the coordinated development of city construction and human health.


Assuntos
COVID-19 , Eliminação de Resíduos , Gerenciamento de Resíduos , Humanos , Resíduos Sólidos , Cidades , Eliminação de Resíduos/métodos , Pandemias , COVID-19/epidemiologia , COVID-19/prevenção & controle , China , Pesquisa Empírica
11.
Nutrients ; 14(18)2022 Sep 17.
Artigo em Inglês | MEDLINE | ID: covidwho-2043875

RESUMO

Universal school meals (USM) have the potential to increase access to healthy food for millions of U.S. students. This study evaluated school food authorities' (SFA) perspectives of federal USM in response to COVID-19 (school year (SY) 2021-22) and California's upcoming USM policy in the SY 2022-23. In February 2022, all SFAs in California (n = 1116) were invited to complete an online survey. Descriptive statistics and logistic regression examining differences by school demographic characteristics were used. Five hundred and eighty-one SFAs completed the survey; 63% of them first implemented USM during the COVID-19 pandemic. Reported benefits included increased student meal participation (79.2%) and reduced stigma (39.7%). Top challenges included staffing (76.9%) and meal packaging/solid waste (67.4%). Nearly all SFAs reported pandemic-related challenges procuring the necessary types (88.9%) and amounts of foods (85.9%), and non-food supplies/equipment (82.6%). Over 40% reported that federal reimbursements were insufficient to cover costs. SFAs with <40% FRPM-eligible students and/or higher student enrollment reported more current challenges and future concerns than those with ≥40% FRPMs and lower student enrollment. The top resources requested to implement CA's USM included additional facilities/equipment (83.8%), communications/marketing (76.1%), increasing meal participation (71.5%), and financial management (61.5%). Most California SFAs reported that implementing federal USM had the intended effect of feeding more children. This study's findings may be useful to the several other U.S. states implementing universal school meals in the SY 2022-23, and to other states or countries considering adopting a USM policy in the future.


Assuntos
COVID-19 , Serviços de Alimentação , COVID-19/epidemiologia , Criança , Humanos , Almoço , Refeições , Pandemias , Resíduos Sólidos , Estudantes
12.
Sci Total Environ ; 851(Pt 2): 157964, 2022 Dec 10.
Artigo em Inglês | MEDLINE | ID: covidwho-1983977

RESUMO

The transmission route of COVID-19 through municipal solid waste (MSW) has been confirmed and receives increasing attention. Potentially viral municipal solid waste (PVMSW) refers to the domestic waste generated by risky areas and epidemic-related populations under a major epidemic in their daily lives or in activities that provide services for their daily lives. For its potential infectivity, PVMSW should be properly collected and transported. This study aimed to standardize the collection and transportation of PVMSW and proposed specific construction schemes of PVMSW collection and transportation systems for three situations which were city-wide lockdown status, medium and high-risk area, and home quarantine separately. In the cases of city-wide lockdown status and home quarantine, PVMSW collection and transportation systems were constructed qualitatively with the examples of Wuhan and Shanghai respectively, and in the case of medium and high-risk area, the systems were constructed quantitatively through the development of a waste collection and transportation costs model. To reduce the risks of virus transmission during the collection and transportation process, the collection and transportation links should be minimized. For the disposal of PVMSW, medical waste treatment facilities and MSW incineration plants should be prioritized. Furthermore, the results showed that the total number of people and the transfer capacity of MSW transfer facility were the two main influencing factors for the selection of PVMSW collection and transportation systems in medium and high-risk area. This article could help manage MSW for preventing virus transmission during the COVID-19 pandemic or similar future epidemics.


Assuntos
COVID-19 , Resíduos de Serviços de Saúde , Eliminação de Resíduos , Gerenciamento de Resíduos , Humanos , Resíduos Sólidos , COVID-19/epidemiologia , Gerenciamento de Resíduos/métodos , Eliminação de Resíduos/métodos , Pandemias , China/epidemiologia , Controle de Doenças Transmissíveis , Meios de Transporte , Cidades
13.
Mar Pollut Bull ; 181: 113865, 2022 Aug.
Artigo em Inglês | MEDLINE | ID: covidwho-1907548

RESUMO

Total and partial restrictions to beach access during COVID-19 pandemic created an opportunity to evaluate its effect on coastal pollution. We aimed to determine the impact of access restrictions on solid waste pollution at Copacabana beach, Brazil. Solid waste amount was analyzed considering beach access restrictions: unrestricted, total closure, partial restriction, new normal. Relationships of atmospheric temperature and precipitation with access restrictions were assessed and confounding effects controlled for further analyses. Beach access restrictions significantly reduced solid waste pollution at Copacabana beach, beach closure reduced waste amount in 72 %. Partial restrictions and new normal periods have significantly reduced solid wastes amount on the beach in 60 % and 36.88 %, respectively. Qualitative data revealed that most of solid wastes were single-use plastics recently disposed at Copacabana beach, reflecting beachgoer's effects on waste left on the beach. A positive impact of COVID-19 pandemic restrictions was detected on solid waste pollution at Copacabana beach.


Assuntos
Praias , COVID-19 , Brasil , COVID-19/epidemiologia , Monitoramento Ambiental , Humanos , Pandemias , Plásticos , Resíduos Sólidos , Resíduos/análise
14.
Int J Environ Res Public Health ; 19(11)2022 06 01.
Artigo em Inglês | MEDLINE | ID: covidwho-1892877

RESUMO

BACKGROUND: Solid waste workers are exposed to a plethora of occupational hazards and may also experience work-related stress. Our study had three specific hypotheses: (1) waste workers experience effort-reward imbalance (ERI) with high self-reported effort but low reward, (2) unionized workers experience greater ERI, and (3) workers with higher income have lower ERI. METHODS: Waste workers from three solid waste sites in Michigan participated in this cross-sectional study. We characterized perceived work stress using the short-version ERI questionnaire. Descriptive statistics and linear tests for trend were assessed for each scale. Linear regression models were constructed to examine the relationship between structural factors of work stress and ERI. Gradient-boosted regression trees evaluated which factors of effort or reward best characterize workers' stress. RESULTS: Among 68 participants, 37% of workers reported high effort and low reward from work (ERI > 1). Constant pressure due to heavy workload was most indicative of ERI among the solid waste workers. Union workers experienced 79% times higher ERI than non-unionized workers, while no significant differences were observed by income, after adjusting for confounders. CONCLUSIONS: Organizational-level interventions, such as changes related to workload, consideration of fair compensation, and increased support from supervisors, can decrease work stress.


Assuntos
Satisfação no Emprego , Estresse Ocupacional , Estudos Transversais , Humanos , Estresse Ocupacional/epidemiologia , Recompensa , Resíduos Sólidos , Estresse Psicológico/epidemiologia , Inquéritos e Questionários , Carga de Trabalho
15.
Environ Monit Assess ; 194(7): 501, 2022 Jun 15.
Artigo em Inglês | MEDLINE | ID: covidwho-1888923

RESUMO

The research assessed the challenges associated with household solid waste management during COVID-19 lockdown period. A mixed method approach was used triangulating both quantitative and qualitative methods. Ten-percent sample size of 1690 households (target population) participated in the research. Stratified random and purposive sampling methods were used to select the participants. Statistical Package for Social Science (SPSS) version 16 and content analysis were used to analyze the data. Chi-square test was used to test whether education level determines the disposal strategy used during the COVID-19 lockdown period. Research findings demonstrates that compulsive use of personal protection equipment such as masks, spending more time at home, bulk buying, and storage of food has skewed the trend of waste generation resulting in the increase in quantity of waste produced daily. COVID-19 lockdown period resulted in reduced waste collection since waste refuse collectors were not operating during lockdown period leading to illegal dumping and burning of waste. On average amount of waste produced weekly per household level was 73 kg (organic waste 35.2 kg, toxic waste 10 kg, and recyclable waste 26.8 kg). A chi-square p value of 0.35 was obtained, showing that there is a relationship between waste disposal strategy used during COVID-19 lockdown period and level of education of the respondents. The research concludes that COVID-19 has greatly affected waste management strategies from generation, collection, transportation, and disposal. It is recommended that the responsible authorities must prioritize collection of waste during the lockdown period as well as ensuring that waste recyclers and collectors are among the essential service providers during the pandemic.


Assuntos
COVID-19 , Eliminação de Resíduos , Gerenciamento de Resíduos , COVID-19/epidemiologia , Controle de Doenças Transmissíveis , Monitoramento Ambiental , Humanos , Eliminação de Resíduos/métodos , Resíduos Sólidos , Gerenciamento de Resíduos/métodos , Zimbábue/epidemiologia
16.
Environ Monit Assess ; 194(7): 462, 2022 May 30.
Artigo em Inglês | MEDLINE | ID: covidwho-1881502

RESUMO

This study aims to determine the 1-year change over the pandemic period in Istanbul, the megacity with the highest population in Turkey, based on environmental components. Among the environmental topics, water consumption habits, changes in air quality, changes due to noise elements, and most importantly, the changes in usage habits of disposable plastic materials that directly affect health have been revealed. The results obtained showed that, in Istanbul, 8.1 × 108 gloves should be considered waste, and considering the population living in districts along coastal areas, the number of waste masks that are likely to end up in the sea was 325.648 pieces/day. The results of the air quality and noise measurements during the pandemic showed that reductions in parallel with human activities were recorded with the lockdown effect. The average noise values of the districts along both sides of the Bosporus, where urbanization is concentrated, were between 50 and 59 dB. The precautions taken during the pandemic have had an effective role in reducing air pollution in Istanbul. In the measurements, the parameters with effective reductions were PM10 (7-47%), PM2.5 (13-48%), NO2 (13-38%), and SO2 (10-56%). As a result, Istanbul's year of changes during the pandemic period, in terms of water, air, noise, and solid plastic wastes, which are the most important components of the environment, is presented.


Assuntos
Poluição do Ar , Pandemias , Monitoramento Ambiental , Humanos , Plásticos , Resíduos Sólidos
17.
Environ Sci Pollut Res Int ; 29(41): 61729-61746, 2022 Sep.
Artigo em Inglês | MEDLINE | ID: covidwho-1877926

RESUMO

A descriptive analysis of 416 documents was performed using bibliometric techniques, in order to gather existing knowledge in circular economy focusing on waste management (2007-2020). The results of this study indicate that annual scientific production increased 94% in the last 5 years, highlighting the countries of Italy, Spain, the UK, China, Brazil, and India. Between the most cited documents stand out those related to calorific value of municipal solid waste and waste to energy technologies for achieving circular economy systems. The conceptual analysis indicates strong linkage between circular economy and sustainable production, waste management, and recycling. Emerging research trends evolved from processes and industry-oriented approach (2017) toward waste management, recycling, and circular economy (2019) and sustainable development and urban solid waste (2020). The analysis reveals five dominant circular economy and waste research themes: (1) greenhouse gases; (2) circular economy, waste management, and recycling; (3) life cycle; (4) waste treatment; and (5) anaerobic digestion and recovery; trends research are related to policy interventions, and enforcement of authorities' regulations to foster circular economy transition, increase the use of practices of recycling and reusing, as well as discourage a growing consumption culture. Results found denote the challenge represented by the implementation of comprehensive policies in circular economy. The above being a key alternative for green recovery in response to the current COVID-19 pandemic.


Assuntos
COVID-19 , Eliminação de Resíduos , Gerenciamento de Resíduos , Bibliometria , Humanos , Pandemias , Reciclagem , Resíduos Sólidos/análise , Desenvolvimento Sustentável
18.
Sci Total Environ ; 755(Pt 1): 142471, 2021 Feb 10.
Artigo em Inglês | MEDLINE | ID: covidwho-1864642

RESUMO

The World Health Organization has recently declared South America the new epicenter of the COVID-19 pandemic, as Brazil has become one of the most affected countries. Besides public health and economic impacts, social isolation has also caused indirect environmental effects. The aim of this study was to assess environmental impacts caused by shifts on solid waste production and management due to the COVID-19 pandemic in Brazil. We have analyzed data from 30 cities, representing a population of more than 53.8 million people (25.4% of the Brazilian population). Unexpectedly, solid waste production in the main cities in Brazil has decreased during the social isolation period, possibly because of reduced activity in commercial areas. The latest data on solid waste in Brazil have revealed that more than 35% of medical waste has not been treated properly. Furthermore, improper disposal of facemasks has been reported in several cities and may increase the risk for COVID-19 spread. The suspension of recycling programs has hindered natural resources from being saved, with emphasis on 24,076 MWh of electric power and 185,929 m3 of potable water - respectively enough to supply 152,475 households and 40,010 people, over a month. Furthermore, total sale price for recyclable materials during the suspension of recycling programs reaches more than 781 thousand dollars, being these materials disposed in landfills - demanding an extra volume of 19,000 m3 - reducing landfill lifespan, and hence causing a double loss: economic and environmental.


Assuntos
COVID-19 , Eliminação de Resíduos , Gerenciamento de Resíduos , Brasil/epidemiologia , Cidades , Meio Ambiente , Humanos , Pandemias , SARS-CoV-2 , Resíduos Sólidos/análise , Instalações de Eliminação de Resíduos
19.
Environ Res ; 212(Pt C): 113363, 2022 09.
Artigo em Inglês | MEDLINE | ID: covidwho-1814402

RESUMO

The rapid generation of biomedical waste (BMW) due to covid-19 pandemic has created burden on the existing municipal solid waste management (MSWM) system in both developed and developing countries. The substantial influx of covid patients in Maharashtra, India has influenced the pattern of BMW generation, especially for the yellow category of BMW and incineration facilities. The objective of the study was to estimate the daily face mask consumption (DFM) and BMW generation from May 2020 to August 2021 in Maharashtra, India. The study was carried out based on the confirmed covid 19 cases, population forecast, urban population (%), BMW generation rate (kg/bed/day), and so on. The data set for the each paramters were collected from web-portals, published reports based on previous studies. These data sets were further regrouped, processed and analyised using mathematical equations. The study also revealed that Mumbai, Pune, and Thane districts, India has contributed ≥ 60% of the DFM and BMW generation. It was found that the DFM by non-covid patients was higher compared to the covid patients (DCFM). Further, it was revealed that BMW generated in the months of July 2020 (152 tons/day), August 2020 (228 tons/day), September 2020 (364 tons/day), October 2020 (177 tons/day), March 2021 (405 tons/day), April 2021 (1,102 tons/day), May 2021 (705 tons/day), June 2021 (194 tons/day), and July 2021 (149 tons/day), exceeded the existing BMW treatment capcity of 132 tons/day. The sudden spike in covid-19 cases has influenced the pattern of DFM and BMW generation, espeicllay for the yellow category of BMW (BMWCY) and has increased the burden on BMW incineration facilities. The daily emission rates from BMW-incineration was in the order PM10> NO2> CO>SO2, with maximum emission of PM10 (85.61 kg of pollutant/day). The F-test was performed using one-way ANOVA to understand the influence of covid cases on daily face mask consumption. It was found that F-satistic of DCFM and BMWCY is more than the F-critical i.e., increase in covid cases had a significant effect on mass consumption rate and BMW generation.


Assuntos
COVID-19 , Gerenciamento de Resíduos , COVID-19/epidemiologia , Humanos , Índia/epidemiologia , Pandemias , Resíduos Sólidos
20.
Front Public Health ; 9: 720006, 2021.
Artigo em Inglês | MEDLINE | ID: covidwho-1775835

RESUMO

Background: The amount of waste generated has been increasing over the years. Meanwhile, the capacity of solid waste management facilities (SWMFs) for waste disposal does not meet the needs, resulting in adverse consequences on the natural environment and health of residents living near these plants, which can significantly degrade their quality of life (QoL). This study aims to evaluate the QoL of residents living near an SWMF and the potential impacts it has on the residents. Methods: A cross-sectional descriptive study was conducted involving 801 subjects, aged 18 and above, who live near the SWMF of Hue City, Vietnam. The QoL of the subjects was quantitatively assessed using the WHO QoL assessment scale (WHOQOL-BREF). The general, health, and environmental factors influencing QoL were identified using bivariate and multivariate logistic regression analyses. Results: About 22.6% of the subjects had a good QoL. In particular, the proportions for good psychological health (6.9%) and environment (13.6%) were low, indicating an influence of the SWMF. Significant factors that degraded the QoL of residents were less education defined by not graduating from high school (odds ratio, OR = 2.78; 95% CI = 1.09-7.06), poor health status (OR = 2.50; 95% CI: 1.56-4.01), dissatisfaction with water quality (OR = 2.41; 95% CI: 1.10-5.25), and unacceptance of the SWMF presence (OR = 1.70; 95% CI: 1.11-2.60). Moreover, subjects living within 2 km of the plant had dermatological diseases and digestive disorders more frequently than those who lived away from the plant. They also reported more complaints regarding water, air, and soil quality, which were likely due to the operation of the SWMF. Conclusions: Burying and disposing of solid waste at the SWMF might lead to the degradation of the surrounding water and soil environments, and its collection and transportation are considered to cause odor and dust. The efforts of responsible authorities to strictly supervise and inspect these activities at the SWMF are essential, not only to protect the surrounding environment but also to improve the QoL of those who live nearby these plants.


Assuntos
Qualidade de Vida , Gerenciamento de Resíduos , Adolescente , Estudos Transversais , Humanos , Qualidade de Vida/psicologia , Resíduos Sólidos
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