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This paper presents a new method for determining the effect of healthy personal protective material (HPPM) stripes, such as surgical masks, protective suits, and overhead and foot covers, on the durability and physicomechanical characteristics of concrete for use in architectural forms. Because of the current global epidemic caused by coronavirus (COVID-19), the use of HPPM, such as surgical masks, protective suits, and overhead and foot covers, has increased considerably. COVID-19's second and third waves are currently affecting various countries, necessitating the use of facemasks (FM). Consequently, millions of single FM have been discharged into the wild, washing up on beaches, floating beneath the seas, and ending up in hazardous locations. The effect of stripe fibers on the physicomechanical characteristics of concrete, such as the workability, Uniaxial Compressive Strength UCS, flexural strength, impact strength, spalling resistance, abrasion resistance, sorptivity, Water absorption Sw, porosity (ηe), water penetration, permeability, and economic and eco-friendly aspects, need to be determined. With a focus on HPPM, especially single-use facemasks, this study investigated an innovative way to incorporate pandemic waste into concrete structures. Scanning electron microscope and X-ray diffraction patterns were employed to analyze the microstructures and interfacial transition zones and to identify the elemental composition. The HPPM had a pore-blocking effect, which reduced the permeability and capillary porosity. Additionally, the best concentrations of HPPM, particularly of masks, were applied by volume at 0, 1, 1.5, 2.0, and 2.5%. The use of mixed fibers from different HPPMs increased the strength and overall performance of concrete samples. The tendency of growing strength began to disappear at approximately 2%. The results of this investigation showed that the stripe content had no effect on the compressive strength. However, the stripe is critical for determining the flexural strength of concrete. The UCS increased steadily between 1 and 1.5% before falling marginally at 2.5%, which indicates that incorporating HPPM into concrete had a significant impact on the UCS of the mixture. The addition of HPPM to the mixtures considerably modified the failure mode of concrete from brittle to ductile. Water absorption in hardened concrete is reduced when HPPM stripes and fibers were added separately in low-volume fractions to the concrete mixture. The concrete containing 2% HPPM fibers had the lowest water absorption and porosity percentage. The HPPM fibers were found to act as bridges across cracks, enhancing the transfer capability of the matrices. From a technological and environmental standpoint, this study found that using HPPM fibers in the production of concrete is viable. [ABSTRACT FROM AUTHOR]

This paper investigated the household practices developed in the disposal of waste in the city of Mossoró, RN, during the pandemic period. Through an online form with 16 open and closed questions, the research reached 71 people in 21 different neighborhoods and the rural area of the municipality. It was found that most respondents did not know about the selective collection service in their neighborhoods or place of residence, as well as lacked knowledge about the separation of waste. Furthermore, 57% of the people stated that there was an increase in household waste during the pandemic, with 26% pointing to an increase in organic waste and plastic packaging. It is clear, therefore, the importance of the performance of the state and municipal sphere in the management of solid waste and compliance with the National Solid Waste Policy (PNRS). Strategies for the operationalization of socio-environmental policies must also be developed in times of crisis, since selective collection was paralyzed during the COVID-19 pandemic, harming the associations of recyclable waste pickers and the management of solid waste, since this material ended up in the local landfill. [ABSTRACT FROM AUTHOR]

Using Health personal protective equipment (PPE) such as face masks, safety foot shoes and protective suits has expanded dramatically due to COVID-19 pandemic leading to a widespread distribution of the PPE, particularly the face masks, in the environments including streets, dump sites, seashores and other risky locations. The environmental degradation of polypropylene, the essential plastic component in single-use face masks (SUM), takes between 20 and 30 years and thus it is essential to develop experimental approaches to recycle the polypropylene or to reuse it in different ways. This paper explores the integration of SUM into concrete structures to improve its mechanical properties. We first to cut the inner nose wire and ear loops, then distribute the PPE material among five different mixed styles. The PPE were applied by volume at 0%, 1%, 1.5%, 2.0%, and 2.5%, with tests focusing on UCS, STS, FS, and PV to determine the concrete's overall consistency and assess the improvement in its mechanical properties. The results showed that adding PPE improves the strength properties and general performance of the concrete specimens. The pattern of rising intensity started to fade after 2%. The findings demonstrated that adding PPE fibers enhanced the UCS by 9.4% at the optimum 2% PPE. The PPE fibers, on the other side, are crucial in calculating the STS and FS of the reinforcement concrete. • The impacts of (PPE) fibers on the mechanical properties of concrete are studied. • The maximum ratio of PPE fibers is determined as a 2% volume fraction. • Polypropylene (PPE) is essential in bridging crack. • PPE has enhanced the UCS. • Both STS and FS still rise to 2%, then decrease at a higher volume of PPE fiber (2.5%). [ABSTRACT FROM AUTHOR]

Distortion in distribution and consumption of agricultural commodities is a result of disruptive shocks in prices and food value chains leading to a significant food loss as well as waste. We investigated the COVID-19 induced lockdown effects in India through an interrupted time series analysis coupled with a survey result of 729 consumers, 225 farmers and synthesis of the literature evidence on food loss as well as food waste. Our article complements the literature inventory on COVID-19 by estimating and tracking the effects on prices and consumer behaviour apart from discussing the implications for food loss and waste. Prices post-lockdown shot up immediately and significantly for chickpea (4.8%), mung bean (5.2%), and tomato (78.2%) corroborating the loss in highly perishable product – tomato – owing to its spiked price. We find no structural break in prices due to lockdown implying that lockdown-induced price change was not sufficient to alter the long-run price movement, and the prices of the major commodities reverted to the pre-lockdown levels. The pandemic induced lockdown did restrict the access to food markets and a majority of consumers (75.31%) experienced a price increase across COVID zones of different intensity of incidence leading to food loss along supply chain and wastage at consumers end. Consumers' livelihood affected from moderate (59.53%) to severe (3.3%) with 92 per cent reporting a change in shopping behavior. The Kruskal-Wallis test on consumption behavior change indicated a significant shift among the consumers reporting altered income, mostly in the downside, post-lockdown. Despite the relaxation for agricultural related activities during the lockdown, farmers reported disruption in disposing their winter produce barring wheat, bolstered by a record state procurement in 2020. The paper affirms that the pandemic has caused a significant price change and unprecedented panic purchase that led to the food wastage but subsided soon exhibiting the resilience in Indian agriculture. We strongly recommend for promoting the capacity and collective resilience of small-scale production systems through institutions, policies and reforms. Contract farming, farmer producer organizations, creation and functioning of social safety nets to overcome income, production and price shocks, access to digital national markets and capacity building on food waste management practices will insulate vulnerable section as well as reduce the loss of food across supply chain. [Display omitted] • Radical change in prices and consumption behaviour during COVID-19 induced lockdown. • Prices increased significantly for chickpea (4.8%), mung bean (5.2%) and tomato (78.2%). • Price rise felt by 75.31% consumers due to supply disruption has implications for food loss and waste. • As livelihood affected from moderate (59.53%) to severe (3.3%), 92% changed shopping behaviour. • Reforms with food loss and waste management practices will insulate vulnerable section. [ABSTRACT FROM AUTHOR]

Distortion in distribution and consumption of agricultural commodities is a result of disruptive shocks in prices and food value chains leading to a significant food loss as well as waste. We investigated the COVID-19 induced lockdown effects in India through an interrupted time series analysis coupled with a survey result of 729 consumers, 225 farmers and synthesis of the literature evidence on food loss as well as food waste. Our article complements the literature inventory on COVID-19 by estimating and tracking the effects on prices and consumer behaviour apart from discussing the implications for food loss and waste. Prices post-lockdown shot up immediately and significantly for chickpea (4.8%), mung bean (5.2%), and tomato (78.2%) corroborating the loss in highly perishable product – tomato – owing to its spiked price. We find no structural break in prices due to lockdown implying that lockdown-induced price change was not sufficient to alter the long-run price movement, and the prices of the major commodities reverted to the pre-lockdown levels. The pandemic induced lockdown did restrict the access to food markets and a majority of consumers (75.31%) experienced a price increase across COVID zones of different intensity of incidence leading to food loss along supply chain and wastage at consumers end. Consumers' livelihood affected from moderate (59.53%) to severe (3.3%) with 92 per cent reporting a change in shopping behavior. The Kruskal-Wallis test on consumption behavior change indicated a significant shift among the consumers reporting altered income, mostly in the downside, post-lockdown. Despite the relaxation for agricultural related activities during the lockdown, farmers reported disruption in disposing their winter produce barring wheat, bolstered by a record state procurement in 2020. The paper affirms that the pandemic has caused a significant price change and unprecedented panic purchase that led to the food wastage but subsided soon exhibiting the resilience in Indian agriculture. We strongly recommend for promoting the capacity and collective resilience of small-scale production systems through institutions, policies and reforms. Contract farming, farmer producer organizations, creation and functioning of social safety nets to overcome income, production and price shocks, access to digital national markets and capacity building on food waste management practices will insulate vulnerable section as well as reduce the loss of food across supply chain. [Display omitted] • Radical change in prices and consumption behaviour during COVID-19 induced lockdown. • Prices increased significantly for chickpea (4.8%), mung bean (5.2%) and tomato (78.2%). • Price rise felt by 75.31% consumers due to supply disruption has implications for food loss and waste. • As livelihood affected from moderate (59.53%) to severe (3.3%), 92% changed shopping behaviour. • Reforms with food loss and waste management practices will insulate vulnerable section. [ABSTRACT FROM AUTHOR]

The COVID-19 pandemic has not only caused a global health crisis, but it has also had significant environmental and human consequences. During the COVID-19 pandemic, this study focused on emerging challenges in managing healthy personal protective materials (HPPM) in Kingdom of Saudi Arabia, using silty sand (SM) soil as an example since it covers large areas in KSA and in the whole world. The main objective of this paper is to find a novel way to minimize pandemic-related waste by using HPPM as waste materials in road construction. For the first time, a series of experiments was conducted on a mixture of different percentages of shredded HPPM (0, 0.5, 1 and 2%) added to the silty sand (SM) soil for road applications, including soil classification according to the USCS, modified compaction, UCS, UPV, and CBR. In addition, a numerical simulation was performed using geotechnical-based software Plaxis 3D to study the performance of the soil-HPPM mix as a subbase layer in the paving structure under heavy traffic loading. The modified compaction test results show that there is an increase in the optimum moisture content with increasing the HPPM contents from 0.5% to 1% and 2%. However, a reduction in the maximum dry density is observed. The values of dry density and water content at 0%, 0.5%, 1% and 2% pf HPPM are 2.045, 1.98, 1.86 and 1.8 g/cm3 and 7.65% 8%, 8.5% and 9.5%, respectively. The soaked CBR values at 0, 0.5, 1 and 2% HPPM are 23, 30, 8, 2% with the maximum value attained with the addition of 0.5% HPPM. The results of UCS were with the same percentages of HPPM 430, 450, 430 and 415 kPa, respectively, with the maximum value attained with 0.5% HPPM addition as well. In contrast, the values of UVP at 0%, 0.5%, 1% and 2% are 978.5, 680.3, 489.4 and 323.6 m/s, respectively, confirming the trends obtained by modified compaction test results. The simulation results confirm this conclusion that the soil-HPPM mix show a superior performance when used as a subbase layer and reduced vertical displacement by a percentage of 11% compared to the normal subbase material. By eliminating HPPM especially facemasks from the landfill lifecycle, incorporating them into high quality construction material production has the potential to deliver significant environmental benefits. [Display omitted] 1 Influence of polypropylene (HPPM) fibres on the performance of sandy soil is clearly studied. 2 The optimum fibres content is obtained as 0.5% volume fraction. 3 Positive improvement is also noticed in unconfined compressive strength and compaction after adding HPPM fibres. 4 Fibres play a major role in crack bridging. [ABSTRACT FROM AUTHOR]

Coronavirus Diseases 2019 (COVID-19) pandemic has a huge impact on the plastic waste management in many countries due to the sudden surge of medical waste which has led to a global waste management crisis. Improper management of plastic waste may lead to various negative impacts on the environment, animals, and human health. However, adopting proper waste management and the right technologies, looking in a different perception of the current crisis would be an opportunity. About 40% of the plastic waste ended up in landfill, 25% incinerated, 16% recycled and the remaining 19% are leaked into the environment. The increase of plastic wastes and demand of plastic markets serve as a good economic indicator for investor and government initiative to invest in technologies that converts plastic waste into value-added product such as fuel and construction materials. This will close the loop of the life cycle of plastic waste by achieving a sustainable circular economy. This review paper will provide insight of the state of plastic waste before and during the COVID-19 pandemic. The treatment pathway of plastic waste such as sterilisation technology, incineration, and alternative technologies available in converting plastic waste into value-added product were reviewed. [Display omitted] • Sudden surge of medical waste has a huge impact on the plastic waste management. • 3R's implementation requires the support from various sector. • Convert plastic waste into value-added product: fuel and construction materials. [ABSTRACT FROM AUTHOR]