2,192 results match your criteria assessment lca

Environmental Life Cycle Assessment in Medical Practice: A User's Guide.

Obstet Gynecol Surv 2021 Jul;76(7):417-428

Efficiency and Sustainability Manager, Carilion Clinic, Roanoke, VA.

Importance: The environmental impacts of medical practice are becoming more important as the unsustainable activities of global societies continue to damage the environment and contribute to health problems. Life cycle assessment (LCA) is a methodology to quantify a wide range of environmental impacts, including global warming, over the full life cycle of products, processes, and systems, to allow for data-driven environmental decisions.

Objective: This article introduces the concepts, terminology, and methodology of LCA using examples from the medical industry. Read More

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Optimizing irrigation in urban agriculture for tomato crops in rooftop greenhouses.

Sci Total Environ 2021 Jun 29;794:148689. Epub 2021 Jun 29.

Sostenipra Research Group (SGR 1683), Institute of Environmental Sciences and Technology (ICTA-UAB), MdM Unit of Excellence, Universitat (CEX2019-000940-M) Autònoma de Barcelona (UAB), Campus UAB, 08193 Bellaterra, Barcelona, Spain; Department of Chemical, Biological and Environmental Engineering, School of Engineering, Building Q, Universitat Autònoma de Barcelona (UAB), 08193 Bellaterra, Spain. Electronic address:

The rise of population in urban areas makes it ever more important to promote urban agriculture (UA) that is efficient in terms of water and nutrients. How to meet the irrigation demand of UA is of particular concern in urban areas where water sources are often limited. With the aim of determining how to reduce water use for irrigation while maintaining productivity and reducing environmental impacts in UA, this study explores the agronomic performance and environmental life cycle impacts and benefits of three different fertigation management practices used in a rooftop greenhouse for tomato crop in Barcelona: 1) open management (OP); 2) recirculation (RC), in which 30% of the drained, unused water is used to irrigate the crop; and 3) the same recirculated management of RC with a further reduction in fresh water input of 15%(RR). Read More

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Bioconversion of Food Waste to produce Industrial-scale Sophorolipid Syrup and Crystals: dynamic Life Cycle Assessment (dLCA) of Emerging Biotechnologies.

Bioresour Technol 2021 Oct 27;337:125474. Epub 2021 Jun 27.

School of Energy and Environment, City University of Hong Kong, Kowloon, Hong Kong. Electronic address:

Bioconversion of food waste into sophorolipid-based biosurfactants is a promising emerging technology. It is important to evaluate the environmental impacts associated with the latest advancements in sophorolipid production as it matures to maximize sustainability on scale-up. This study takes a dynamic Life Cycle Assessment (dLCA) approach to address the inherent uncertainties and evaluate the environmental performances. Read More

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October 2021

Cultivation of the heterotrophic microalga Galdieria sulphuraria on food waste: A Life Cycle Assessment.

Bioresour Technol 2021 Jul 22;340:125637. Epub 2021 Jul 22.

Sustainable Chemistry (Resource Efficiency), Institute of Sustainable Chemistry, Leuphana University of Lüneburg, Universitätsallee 1, Lüneburg C13.203, 21335, Germany; Institute for Food and Environmental Research e. V., Papendorfer Weg 3, Bad Belzig 14806, Germany. Electronic address:

The aim of this study was to perform a Life Cycle Assessment of a production process of 1 kg dry algal biomass powder (Galdieria sulphuraria) with 27 % (w/w) protein content for human consumption for optimizing the production regarding global warming potential and resource efficiency in combination with food waste utilization. It was investigated, underpinned by a comparison of the use of conventional glucose, whether and to what extent the environmental impact/global warming potential can be reduced by changing to food waste hydrolysate and how this can lead to a more sustainable use of resources and a sustainable development. Overall, the results showed that hydrolysis, along with freeze-drying, caused most of the overall impact. Read More

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Recycling drainage effluents using reverse osmosis powered by photovoltaic solar energy in hydroponic tomato production: Environmental footprint analysis.

J Environ Manage 2021 Jul 26;297:113326. Epub 2021 Jul 26.

Agricultural Engineering Department, Technical University of Cartagena, Paseo Alfonso XIII 48, 30203, Cartagena, Spain.

Greenhouse cultivation in the Mediterranean region has undoubtedly enhanced the economic growth and has generated social benefits by making an efficient use of resources. However, these production systems caused undesirable environmental impacts. In order to move towards cleaner production in greenhouse areas, this study has assessed the potential environmental benefits and trade-offs of the integration of an on-farm reverse osmosis system powered by photovoltaic solar energy to recycle the drainage effluents from greenhouses. Read More

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Life cycle greenhouse gas emissions of microalgal fuel from thin-layer cascades.

Bioprocess Biosyst Eng 2021 Jul 22. Epub 2021 Jul 22.

Werner Siemens-Chair of Synthetic Biotechnology, Garching, Munich, Germany.

Thin-layer cascades (TLCs) enable algae cultivation at high cell densities, thus increasing biomass yields and facilitating the harvest process. This makes them a promising technology for industrial-scale algal fuel production. Using Life Cycle Assessment (LCA), we calculate the greenhouse gas (GHG) emissions of aviation fuel produced using algal biomass from TLCs. Read More

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Environmental and economic analysis of bioethanol production from sugarcane molasses and agave juice.

Environ Sci Pollut Res Int 2021 Jul 24. Epub 2021 Jul 24.

Department of Chemical Engineering, University of Castilla-La Mancha, Ciudad Real, Spain.

In this article, sugarcane molasses and agave juice were compared as potential feedstocks for producing bioethanol in Mexico in terms of their environmental impact and economic factors. Life cycle assessment (LCA) using SimaPro was carried out to calculate environmental impacts by using a cradle-to-gate approach. A preliminary economic analysis was performed to determine the economic feasibility of the studied options. Read More

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Sustainability assessment of organic waste management in three EU Cities: Analysing stakeholder-based solutions.

Waste Manag 2021 Jul 22;132:44-55. Epub 2021 Jul 22.

Ghent University, Faculty of Bioscience Engineering, Department of Green Chemistry and Technology, Sustainable Systems Engineering Group (STEN), Coupure Links 653, Ghent, Belgium.

This study focuses on a comprehensive sustainability assessment of the management of the organic fraction of municipal solid waste in Ghent (Belgium), Hamburg (Germany) and Pécs (Hungary). A sustainability assessment framework has been applied to analyse social, environmental, and economic consequences at the midpoint level (25 impact categories) and at the endpoint level (5 areas-of-protection). For each case study, the reference scenario was analysed, along with three solutions to improve the sustainability performance, which were selected and developed with the collaboration of local stakeholders. Read More

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Environmental life cycle assessment of polyhydroxyalkanoates production from cheese whey.

Waste Manag 2021 Jul 22;132:31-43. Epub 2021 Jul 22.

Department of Civil and Environmental Engineering and Architecture, University of Cagliari, Via Marengo 2, 09123 Cagliari, Italy.

Cheese whey (CW) is the main by-product of the dairy industry and is often considered one of the main agro-industrial biowaste streams to handle, especially within the European Union, where the diary activities play an essential role in the agrarian economy. In the paper, Life Cycle Assessment (LCA) is used to analyse the feasibility of producing polyhydroxyalkanoates (PHA) as the main output of an innovative CW valorisation route which is benchmarked against a conventional anaerobic digestion (AD) process. To this aim, the LCA inventory data are derived from lab-scale PHA accumulation tests performed on real CW, while data from the literature of concern are used for modelling both the PHA extraction from the accumulating biomass and for the alternative CW valorisation through AD. Read More

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Are Natural-Based Composites Sustainable?

Polymers (Basel) 2021 Jul 15;13(14). Epub 2021 Jul 15.

Departamento de Ingeniería de Procesos, Universidad de Las Palmas de Gran Canaria, 35017 Las Palmas, Spain.

This paper assesses the aspects related to sustainability of polymer composites, focusing on the two main components of a composite, the matrix and the reinforcement/filler. Most studies analyzed deals with the assessment of the composite performance, but not much attention has been paid to the life cycle assessment (LCA), biodegradation or recyclability of these materials, even in those papers containing the terms "sustainable" (or its derivate words), "green" or "eco". Many papers claim about the sustainable or renewable character of natural fiber composites, although, again, analysis about recyclability, biodegradation or carbon footprint determination of these materials have not been studied in detail. Read More

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Life Cycle Assessment of Sustainable Asphalt Pavement Solutions Involving Recycled Aggregates and Polymers.

Materials (Basel) 2021 Jul 11;14(14). Epub 2021 Jul 11.

Department of Civil, Construction and Environmental Engineering, University of Naples Federico II, Via Claudio 21, 80125 Naples, Italy.

The pursuit of sustainability in the field of road asphalt pavements calls for effective decision-making strategies, referring to both the technical and environmental sustainability of the solutions. This study aims to compare the life cycle impacts of several pavement solution alternatives involving, in the binder and base layers, some eco-designed, hot- and cold-produced asphalt mixtures made up of recycled aggregates in substitution for natural filler and commercial recycled polymer pellets for dry mixture modification. The first step focused on the technical and environmental compatibility assessment of the construction and demolition waste (CDW), jet grouting waste (JGW), fly ash (FA), and reclaimed asphalt pavement (RAP). Read More

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Eco-Friendly Feed Formulation and On-Farm Feed Production as Ways to Reduce the Environmental Impacts of Pig Production Without Consequences on Animal Performance.

Front Vet Sci 2021 6;8:689012. Epub 2021 Jul 6.

PEGASE, INRAE, Institut Agro, Saint-Gilles, France.

Animal feeding has a major contribution to the environmental impacts of pig production. One potential way to mitigate such effects is to incorporate an assessment of these impacts in the feed formulation process. The objective of this study was to test the ability of innovative formulation methodologies to reduce the impacts of pig production while also taking into account possible effects on growth performance. Read More

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Energy, environment and economy assessment of medical waste disposal technologies in China.

Sci Total Environ 2021 Jul 9;796:148964. Epub 2021 Jul 9.

College of Energy and Safety Engineering, Tianjin Chengjian University, Tianjin 300384, China; Tianjin Key Laboratory of Building Green Functional Materials, Tianjin 300384, China.

Medical waste (MW) has exploded since the COVID-19 pandemic and aroused great concern to MW disposal. Meanwhile, the energy recovery for MW disposal is necessary due to high heat value of MW. Harmless disposal of MW with economically and environmentally sustainable technologies along with higher energy recovery is urgently required, and their energy recovery efficiencies and environmental impacts reduction due to energy recovery are key issues. Read More

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Life cycle assessment of environmental impacts associated with oxidative desulfurization of diesel fuels catalyzed by metal-free reduced graphene oxide.

Environ Pollut 2021 Jul 5;288:117677. Epub 2021 Jul 5.

School of Energy and Chemical Engineering, Xiamen University Malaysia, Selangor Darul Ehsan, 43900, Malaysia; Center of Excellence for NaNo Energy & Catalysis Technology (CONNECT), Xiamen University Malaysia, Selangor Darul Ehsan, 43900, Malaysia; College of Chemistry and Chemical Engineering, Xiamen University, Xiamen, 361005, China. Electronic address:

This study aimed to analyze the environmental impacts of the oxidative desulfurization (ODS) process catalyzed by metal-free reduced graphene oxide (rGO) through life cycle assessment (LCA). The environmental impacts study containing the rGO production process, the ODS process, the comparison of different oxidants and solvents was developed. This study was performed by using ReCiPe 2016 V1. Read More

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Greenhouse Gas Emissions of Western Canadian Natural Gas: Proposed Emissions Tracking for Life Cycle Modeling.

Environ Sci Technol 2021 Jul 13;55(14):9711-9720. Epub 2021 Jul 13.

Department of Chemical and Petroleum Engineering, University of Calgary, Calgary, Alberta, Canada T2N 1N4.

Natural gas (NG) produced in Western Canada is a major and growing source of Canada's energy and greenhouse gas (GHG) emissions portfolio. Despite recent progress, there is still only limited understanding of the sources and drivers of Western Canadian greenhouse gas (GHG) emissions. We conduct a case study of a production facility based on Seven Generation Energy Ltd. Read More

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Latent class analysis-derived subphenotypes are generalisable to observational cohorts of acute respiratory distress syndrome: a prospective study.

Thorax 2021 Jul 12. Epub 2021 Jul 12.

Department of Anesthesiology, University of California San Francisco, San Francisco, California, USA.

Rationale: Using latent class analysis (LCA), two subphenotypes of acute respiratory distress syndrome (ARDS) have consistently been identified in five randomised controlled trials (RCTs), with distinct biological characteristics, divergent outcomes and differential treatment responses to randomised interventions. Their existence in unselected populations of ARDS remains unknown. We sought to identify subphenotypes in observational cohorts of ARDS using LCA. Read More

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Operating in a Climate Crisis: A State-of-the-Science Review of Life Cycle Assessment within Surgical and Anesthetic Care.

Environ Health Perspect 2021 Jul 12;129(7):76001. Epub 2021 Jul 12.

School of Health and Human Performance and the Healthy Populations Institute, Dalhousie University, Halifax, Nova Scotia, Canada.

Background: Both human health and the health systems we depend on are increasingly threatened by a range of environmental crises, including climate change. Paradoxically, health care provision is a significant driver of environmental pollution, with surgical and anesthetic services among the most resource-intensive components of the health system.

Objectives: This analysis aimed to summarize the state of life cycle assessment (LCA) practice as applied to surgical and anesthetic care via review of extant literature assessing environmental impacts of related services, procedures, equipment, and pharmaceuticals. Read More

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Comparative analysis of carbon footprint between conventional smallholder operation and innovative largescale farming of urban agriculture in Beijing, China.

PeerJ 2021 29;9:e11632. Epub 2021 Jun 29.

Department of Urban Planning and Design, The University of Hong Kong, Pokfulam, Hong Kong SAR, China.

The sustainable development of agriculture is one of the key issues of ensuring food security and mitigating climate change. Since innovative large-scale agriculture is gaining popularity in cities in China, where the agricultural landscape is dominated by conventional smallholder farming, it is necessary to investigate the difference in carbon emissions between conventional smallholder operation and innovative largescale agriculture. This study evaluated the carbon footprint (CF) of conventional and innovative urban agriculture in Beijing using the cradle-to-consumption Life Cycle Assessment (LCA). Read More

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Strategies for mitigating plastic wastes management problem: A lifecycle assessment study in Hong Kong.

Waste Manag 2021 Jul 8;131:412-422. Epub 2021 Jul 8.

Interdisciplinary Research Laboratory on Sustainable Engineering and Ecodesign (LIRIDE), Department of Civil and Building Engineering, Université de Sherbooke, 2500 boul. de l'Université, Sherbrooke, Québec, J1K 2R1, Canada.

Considering the volume of plastic generation and its persistence in nature, the management of plastic wastes has gained increasing attention globally. To select the most environmentally sustainable solution, insights in the environmental impacts of different management strategies are crucial. This study thus aimed to evaluate different plastic waste management strategies such as mechanical recycling, incineration, industrial incineration, construction and landfill, and exemplified with potential case demonstrations in Hong Kong. Read More

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Health and environmental impacts of drinking water choices in Barcelona, Spain: A modelling study.

Sci Total Environ 2021 Jul 5;795:148884. Epub 2021 Jul 5.

ISGlobal, Barcelona, Spain; CIBER Epidemiología y Salud Pública (CIBERESP), Madrid, Spain; Universitat Pompeu Fabra (UPF), Barcelona, Spain.

Quantitative evidence of health and environmental tradeoffs between individuals' drinking water choices is needed to inform decision-making. We evaluated health and environmental impacts of drinking water choices using health impact and life cycle assessment (HIA, LCA) methodologies applied to data from Barcelona, Spain. We estimated the health and environmental impacts of four drinking water scenarios for the Barcelona population: 1) currently observed drinking water sources; a complete shift to 2) tap water; 3) bottled water; or 4) filtered tap water. Read More

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Elemental composition of whole body soft tissues in bivalves from the Bijagós Archipelago, Guinea-Bissau.

Environ Pollut 2021 Jul 2;288:117705. Epub 2021 Jul 2.

CESAM - Centro de Estudos Do Ambiente e Do Mar, Faculdade de Ciências, Universidade de Lisboa, 1749-016, Lisboa, Portugal.

Marine bivalves are bioindicators of coastal environmental pollution, integrating monitoring programs worldwide. Nonetheless, the choice of particular species as an indicator requires validation, achieved by understanding the differences in element concentrations among and within species. The present study compares the chemical composition of whole body soft tissues of four common bivalve species from the Bijagós Archipelago, a pristine region of West Africa. Read More

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Assessment of Liaison XL Murex Chagas diagnostic performance in blood screening for Chagas disease using a reference array of chimeric antigens.

Transfusion 2021 Jul 9. Epub 2021 Jul 9.

Advanced Public Health Laboratory, Gonçalo Moniz Institute (FIOCRUZ/BA), Oswaldo Cruz Foundation, Salvador, Bahia, Brazil.

Background: Chagas disease (CD) serological screening at blood banks is usually performed by a single highly sensitive serological assay, with chemiluminescent immunoassays (CLIAs) being the method of choice. CLIAs employ recombinant, fusion peptides and/or chimeric antigens that selectively capture anti-Trypanosoma cruzi antibodies. However, despite high sensitivity, the ability of these tests to identify CD-positive cases should be evaluated against T. Read More

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Production of solid biofuels from organic waste in developing countries: A review from sustainability and economic feasibility perspectives.

Sci Total Environ 2021 Jun 30;795:148816. Epub 2021 Jun 30.

Institute of Sustainable Processes, University of Valladolid, Dr Mergelina, s/n, 47011 Valladolid, Spain.

The current increase in the world population and its energy demand promotes the study and implementation of cleaner energy forms since the traditional energy recovery systems are seriously affecting the environment. Biofuels and especially biomass or solid biofuels represent a sustainable energy source for developed and developing countries. This review aims to discuss the characteristics and advantages of solid biofuels, analyse the pretreatments and thermal treatments required to recover energy, and compare them with traditional fossil fuels. Read More

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Environmental Impacts and Their Association With Performance and Excretion Traits in Growing Pigs.

Front Vet Sci 2021 21;8:677857. Epub 2021 Jun 21.

PEGASE, INRAE, Institut Agro, Saint-Gilles, France.

The selection of pigs for improved production traits has been, for a long time, the major driver of pig breeding. More recently, because of the increasing concern with the environment, new selection criteria have been explored, such as nitrogen (N) excretion. However, many studies indicate that life cycle assessment (LCA) provides much better indicators of environmental impacts than excretion. Read More

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Life cycle assessment of edible insects (Protaetia brevitarsis seulensis larvae) as a future protein and fat source.

Sci Rep 2021 Jul 7;11(1):14030. Epub 2021 Jul 7.

CNRS, LAGEPP UMR 5007, Université Claude Bernard Lyon 1, 43 Bd 11 Novembre 1918, 69622, Villeurbanne, France.

Because it is important to develop new sustainable sources of edible protein, insects have been recommended as a new protein source. This study applied Life Cycle Assessment (LCA) to investigate the environmental impact of small-scale edible insect production unit in South Korea. IMPACT 2002 + was applied as the baseline impact assessment (IA) methodology. Read More

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Removal of Cu(II) ions from aqueous solutions using membrane system and membrane capacitive deionization (MCDI) technology.

Environ Monit Assess 2021 Jul 3;193(8):460. Epub 2021 Jul 3.

Department of Naval Architecture and Marine Engineering, Bandirma Onyedi Eylül University, Balikesir, Turkey.

Copper ion removal with nanofiltration membranes has accelerated in recent years. In this study, Cu ion removal was investigated with nanofiltration membrane and a membrane capacitive deionization (MCDI) system; consequently, it was observed that the highest performance was seen when these two systems worked in an integrated system (99% Cu ion removal) MCDI system is a purification technology through ion exchange membranes based on applying an electric field between two opposed electrodes. The flow rate, direct current voltage, and the operation time at which the Cu ion removal rate was the highest were 50 mL/min, 1. Read More

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Evaluation and optimization of a circular economy model integrating planting and breeding based on the coupling of emergy analysis and life cycle assessment.

Environ Sci Pollut Res Int 2021 Jul 1. Epub 2021 Jul 1.

National Engineering Laboratory for Reducing Emissions from Coal Combustion, Engineering Research Center of Environmental Thermal Technology of Ministry of Education, Shandong Key Laboratory of Energy Carbon Reduction and Resource Utilization, Research Center for Sustainable Development, Jinan, 250061, Shandong, China.

The sustainable development of agriculture is facing problems such as high resource consumption and serious environmental pollution. The development of the circular economy model integrating planting and breeding (CEMIPB) has become an effective way to realize the sustainable development of agriculture. Due to the great difference of natural resource attributes in different regions of China, CEMIPB shows diverse characteristics on the whole. Read More

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Life Cycle Assessment (LCA) of Particleboard: Investigation of the Environmental Parameters.

Polymers (Basel) 2021 Jun 22;13(13). Epub 2021 Jun 22.

Centre for Real Estate Studies, Department of Real Estate, Faculty of Built Environment and Surveying, Universiti Teknologi Malaysia (UTM), Johor Bahru 81310, JHR, Malaysia.

Particleboard is not entirely a wood replacement but a particular material with its properties, making it more effective at different times than heavy or solid wood. The world's biggest concern is environmental problems with formaldehyde as a particulate board binder that can lead to human carcinogenic agents. A cradle-to-gate life cycle assessment (LCA) of particleboard production was performed using openLCA software. Read More

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Reusable Plastic Crates (RPCs) for Fresh Produce (Case Study on Cauliflowers): Sustainable Packaging but Potential Survival and Risk of Cross-Contamination.

Foods 2021 Jun 1;10(6). Epub 2021 Jun 1.

Postharvest and Refrigeration Group, Escuela Técnica Superior de Ingeniería Agronómica (ETSIA), Universidad Politécnica de Cartagena (UPCT), Paseo Alfonso XIII, 48, 30203 Cartagena, Spain.

The handling of fresh fruits and vegetables in reusable plastic crates (RPCs) has the potential to increase the sustainability of packaging in the fresh produce supply chain. However, the utilization of multiple-use containers can have consequences related to the microbial safety of this type of food. The present study assessed the potential cross-contamination of fresh cauliflowers with via different contact materials (polypropylene from RPCs, corrugated cardboard, and medium-density fiberboard (MDF) from wooden boxes). Read More

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Changing Dietary Behavior for Better Biodiversity Preservation: A Preliminary Study.

Nutrients 2021 Jun 17;13(6). Epub 2021 Jun 17.

Department of Business Economics and Management, Mediterranean Agronomic Institute of Chania, 73200 Chania, Greece.

Broadly consumed dietary patterns, such as the European and Western ones, are exerting pressures on biodiversity both in Europe and globally, and shifting toward a sustainable dietary pattern has thus become a must. This paper constitutes a preliminary communication of the results of a research project on the issue. In this study, the pressures of three dietary patterns (European, Western, and Mediterranean) on biodiversity are addressed in terms of land use, water use, greenhouse gas emissions, and eutrophication impact indicators. Read More

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