Search Results (79)

The aging water distribution system in the United States, constructed mainly during the 1970s with some pipes dating back 125 years, is experiencing significant deterioration leading to substantial water losses. Along with the potential for water loss savings, improvements in the distribution system by using leak detection technologies can create net energy and cost savings. In this work, a new framework has been presented to calculate the economic level of leakage within water supply and distribution systems for two primary leak detection technologies (acoustic vs. satellite). In this work, a new framework is presented to calculate the economic level of leakage (ELL) within water supply and distribution systems to support smart infrastructure in smart cities. A case study focused using water audit data from Atlanta, Georgia, compared the costs of two leak mitigation technologies: conventional acoustic leak detection and artificial intelligence–assisted satellite leak detection technology, which employs machine learning algorithms to identify potential leak signatures from satellite imagery. The ELL results revealed that conducting one survey would be optimum for an acoustic survey, whereas the method suggested that it would be expensive to utilize satellite-based leak detection technology. However, results for cumulative financial analysis over a 3-year period for both technologies revealed both to be economically favorable with conventional acoustic leak detection technology generating higher net economic benefits of USD 2.4 million, surpassing satellite detection by 50%. A broader national analysis was conducted to explore the potential benefits of US water infrastructure mirroring the exemplary conditions of Germany and The Netherlands. Achieving similar infrastructure leakage index (ILI) values could result in annual cost savings of $4–$4.8 billion and primary energy savings of 1.6–1.9 TWh. These results demonstrate the value of combining economic modeling with advanced leak detection technologies to support sustainable, cost-efficient water infrastructure strategies in urban environments, contributing to more sustainable smart living outcomes. Full article

The rapid growth of the global population and associated increases in resource consumption have accelerated environmental degradation, making sustainable design and construction processes increasingly essential. The construction sector holds significant potential for reducing environmental impacts, especially through sustainability-focused certification systems such as LEED. This study evaluates the projected energy efficiency and sustainability performance of the Surgical Sciences Building at Istanbul University’s Çapa Campus, which was designed with the goal of achieving LEED Gold certification. The assessment is based on design-phase data and conducted prior to construction. Energy performance analyses were carried out using DesignBuilder software, supported by the LEED Assessment Report and Energy Audit Report. According to simulation results, approximately 30% savings in energy consumption and water usage are expected. In addition, the process-oriented LEED approach is expected to result in a total CO₂ emission savings of approximately 570 tonnes, while renewable energy systems are expected to meet approximately 13% of the building’s primary energy demand and reduce CO₂ emissions by approximately 151 tonnes per year. Waste management strategies developed for both the construction and operational phases are aligned with LEED criteria and aim to achieve up to 80% recycling rates. The findings demonstrate that LEED certification, when employed as a process-oriented design and decision-making tool rather than a result-oriented label, can enable sustainable strategies to be integrated from the earliest stages of project development. Particularly for complex healthcare buildings, embedding LEED principles into the design process has strong potential to enhance environmental performance. Although based on a single case study, this research provides valuable insight into the broader applicability of LEED in diverse building types and geographic contexts. Full article

Urban parks, key components of green infrastructure (GI), offer paved open spaces that significantly impact physical activity (PA) among older adults. However, the environmental features of these spaces and their effects on PA remain underexplored. Existing studies often overlook factors like spatial configuration, planar morphology, and bag storage facilities, and lack a systematic analytical framework. Many also rely on simplistic PA measurements and struggle with multicollinearity in data analysis. This study addresses these gaps by proposing a comprehensive framework examining four environmental dimensions: spatial configuration, planar morphology, facility provision, and visual greenery. Using GPS-tracked mobility data, behavioral audits, and multicollinearity-robust Partial Least Squares (PLS) regression, we analyze the impact of these features on PA. Results show that functional elements—higher spatial integration (VIP = 1.04), larger activity areas (VIP = 1.82), sufficient bag storage (VIP = 1.64), outdoor fitness equipment (VIP = 1.30), and diverse greenery (VIP = 1.23)—significantly enhance PA. In contrast, factors like floral diversity (VIP = 0.67), water visibility (VIP = 0.48), and shape complexity (VIP = 0.16) have minimal effects. This study provides theoretical insights and practical strategies for retrofitting paved park spaces, contributing to age-friendly urban GI. Full article

Healthcare institutions are under increasing pressure to deliver high-quality, patient-centered care while reducing their environmental footprint. Integrating quality and environmental management systems (ISO 9001 and ISO 14001) into a unified integrated management system (IMS) offers a potential pathway to meet these dual imperatives. This study investigates the effects of IMS implementation in three European hospitals through a comparative qualitative analysis of institutional reports, audit documentation, and performance indicators. The methodology combines a literature-informed conceptual framework with a multi-case analysis guided by four domains: environmental impact, care quality, process efficiency, and stakeholder engagement. The data were collected from institutional documentation over a six-year period (three years before and after IMS implementation), covering key indicators such as energy and water consumption, medical waste recycling, audit compliance, and patient satisfaction. The findings show that IMS adoption was associated with a 20–28% improvement in resource efficiency, increased recycling rates, and consistent gains in compliance and satisfaction metrics. These results were supported by strategic leadership, cross-functional training, and digital monitoring tools. The study concludes that IMS enhances institutional performance and sustainability while aligning healthcare operations with broader governance and policy goals. Further research is recommended to explore the long-term impacts and generalize the findings across healthcare systems. Full article

The Guangdong Province is rich in waterways, including those of the Pearl River. The entire watershed of the Pearl River system spans the territory of six provinces. Considering the overarching objective of building a ‘beautiful Bay Area’ under the guidance of Outline Development Plan for the Guangdong-Hong Kong-Macao Greater Bay Area as well as the ecological problems that span over river basins and regions in Guandong Province, public interest litigation is a useful tool in protecting the environment. Analyzing 95 first-instance (trial) judgements handed down in Guangdong Province between 2018 and 2021, we sought to evaluate public interest litigation as a means of safeguarding aquatic ecology in the Greater Bay Area (GBA), China. Cases were categorized for: firstly, their approach to determining the extent of ecological damage; secondly, the procedure used for receiving and auditing restorative compensation; thirdly, the collaboration between the court and government departments in the management and use of restorative compensation; and fourthly, the collaborative ‘public–private’ supervision utilized to monitor the implementation of restorative compensation and actual restoration. Our insights are intended to provide guidance for cooperative opportunities in the large transregional water systems and offshore areas of mainland China. Full article

Agricultural production is responsible for most of the withdrawal of water volume. There has been increasing the pressure on stakeholders to adapt water usage behavior and manage water resources. In this context, water footprint management (WFM) practices have been implemented. Despite the positive benefits of the adoption of WF practices, the selection and prioritization of WFM practices remains a challenge. In addition, the effects that each of these individual practices have on reputation and legitimacy have not been investigated. To fill these research gaps, this study determined the relative priority of seven different WFM practices and the relative importance of each of these practices to increase agri-food firms’ reputation and legitimacy. This study applied the best–worst method (BWM) with a set of expert Chilean professionals in the field. The practice related to the promotion of the measurement of the water footprint throughout the supply chain was considered the most vital and the one with the greatest effects on firms’ reputation and legitimacy. The practice related to the establishment of water auditing and control systems was considered the least important and the one that generates lower effects on firms’ reputation and legitimacy. Our study also found that lack of financial resources is the main barrier to WFM implementation. These findings are useful for companies that are not capable of developing a complete program of WFM adoption due to lack of resources to implement all these practices. By knowing the importance of each practice, farmers can select the practices that will bring the greatest benefits. Full article

The Welfair^® certificate has become an important part of food chain integrity for animal welfare assessment in several countries, relying on a rigorous audit that verifies compliance with legislation and assesses animal welfare through the Welfare Quality Protocol (WQP). Dairy cattle farmers are encouraged to conduct internal audits beforehand to self-assess the farm’s animal welfare level. Since early 2023, the Welfair^® scheme has proposed simplified audits to shorten the time needed for internal audits. Ten measures are selected from the WQP, five of which must always be assessed: body condition, water provision, lameness, integument alterations, and pain management in disbudding. The main objective of this study was to determine whether analyzing the results of these five key indicators helps in identifying welfare problems, ultimately leading to a better final score. To test this, seven Portuguese commercial dairy farms were randomly selected to conduct a simplified internal audit followed by a certification audit. Considering the circumstances of our study, the visits proved essential to promoting better welfare practices, which positively influenced the final classification. However, areas that require improvement (such as the lack of an accurate risk analysis of the simplified audits provided by the Welfair^® scheme) were identified and are discussed. Full article

Outdated, oversized variable speed pump drives (VSDPs) in industry lead to sub-optimal energy efficiency and considerable energy losses. This paper proposes methods to develop 2D efficiency maps for motors, converters, and pumps using polynomial surface fitting, which enables efficiency evaluation in a wide operating range. The method was applied to an oversized VSDP in an industrial chilled water supply system, comparing the original system with five alternative VSDP combinations with high-efficiency motors and pumps. The five VSDP variants demonstrated average energy savings of around 30%, with the synchronous reluctance motor (SRM) configurations outperforming the induction motor (IM) configurations by up to 7 percentage points, particularly at low loads. The high-efficiency SRM-based 252-IE5 variant delivered the best overall energy performance, highlighting the benefits of optimised system sizing and motor selection for energy savings. The proposed method can be used in both industrial and residential applications and offers great advantages in process systems that require variable flow and pressure of water or other fluids during operation, such as HVAC, water supply and wastewater treatment, district heating, etc. The development of a VSDP drive with efficient energy optimisation is an interdisciplinary problem of mechanical and electrical engineering, and without the interaction of engineers from both fields the result will not be optimal. We try to present our method so that it can be a reliable tool for mechanical, electrical, and other engineers or researchers to assist them in finding possible energy savings, performing energy audits, and selecting the most suitable components when modernising existing or developing new systems. Full article

In this study, a new methodology based on performance indices is presented to carry out a detailed energy audit of water systems. Given a water network, the proposed procedure allows for a direct assessment of the critical areas in terms of energy efficiency, as well as for a detailed quantification of the energy benefits resulting from the new management strategies proposed to increase the sustainability of the network. To verify the viability of the methodology, a pressure control strategy is proposed, based on the installation of pressure-reducing valves, containing the excess pressure and thus the water leakage within the system. The operation strategy is carefully designed by the use of a global optimization solver, searching for both the number and location of the devices in order to maximize water savings and minimize the investment cost. The energy benefits resulting from the pressure control are then investigated by the assessment of the performance indices. According to the obtained results, the proposed methodology is a useful tool to assess the vulnerability and inefficiency of a given network, as well as to quantify the benefits resulting from the new management strategies. Full article

Veterinary coaching was tested to assess its efficacy in promoting adherence to biosecurity procedures. Poultry farmers (n = 13) in Belgium were profiled using ADKAR^®, coached and audited prior to and 6 months after coaching. The ADKAR^® (Awareness, Desire, Knowledge, Ability, and Reinforcement) profiling technique identified 5/13 participating farmers with relatively low scores (≤3) for one or more elements that block change (biosecurity compliance in this case). Education was the only demographic variable that influenced knowledge scores. Through the Biocheck.Ugent^TM methodology, farm biosecurity was assessed and benchmarked to allow for tailored guidance. The farmer, farm veterinarian, and coach defined a farm-specific action plan that covered infrastructure, site access, staff/visitors, purchase policies, transport and depopulation, feed and water supplies, flock management, cleaning and disinfection between flocks, and measures between houses. From a total of 49 proposed actions, 36 were adopted. Purchasing policy had the highest (100%) and cleaning and disinfection had the lowest compliance (38%). Time, cost, and feasibility (e.g., inadequate farm layout) were the main reasons cited for not implementing action points. Overall, biosecurity improved significantly (p = 0.002) from 67.1 ± 5.7% to 70.3 ± 5.7% (mean ± Std. dev). The study, hence, presents convincing proof of how coaching can lead to new solutions not previously considered. Full article

The objective of this study was to assess the health and welfare of 70 commercial broiler flocks (transport batches) in three distinct slaughterhouses based on various indicators including emaciation, dirty feathers (DFs), footpad dermatitis (FPD), hock burn (HB), breast burn (BB), breast blister, breast ulcer, ascites, septicemia/abnormal color, cellulitis, extensive traumatisms, dead on arrival (DoA) and condemnation rate. Assessment scales ranging from 0 (absence) to 2 (severe) were used for DFs, FPD, and HB, while a 0 (absence) to 1 (present) scale was applied to BB, breast blisters, and breast ulcers. The prevalence of total condemnation causes (emaciation, ascites, septicemia/abnormal color, cellulitis, and extensive traumatism) and DoA were recorded and presented in percentages. Three flocks presented condemnation rates higher than 4% and 11 flocks presented DoA rates higher than 0.5%. Twenty-one flocks achieved grade 1 (warning) for FPD and 14 achieved grade 2 for FPD (alarm). Extensive trauma was observed in 0.01% of the slaughtered animals, and no flock reached the threshold of 2%. Breast blisters and breast ulcers lesions were not observed in the studied flocks. The significant positive associations observed for the presence of severe footpad dermatitis (FPD2), severe hock burns (HB2), and breast burns (BB1) indicate simultaneous occurrences. Absences of hock burns (HB0) and breast burns (BB0) were also associated. Eleven houses that obtained the worst results for welfare indicators at slaughterhouses were audited. FPD, HB, DoA, and the condemnation rate were the most crucial indicators for identifying farms with inadequate welfare conditions. These indicators should be systematically integrated into the welfare monitoring of broilers in slaughterhouses. Audits conducted on farms detected some noncompliance with regulatory welfare standards and suggested improvements in environmental and structural conditions, as well as the reduction in stocking densities and improvements in the water systems. Full article

Here, we investigate whether England’s 152 local flood risk management strategies (LFRMSs) satisfy minimal legislative criteria and address the growing surface water flood (SWF) risk caused by climate change. A systematic audit was used to assess the alignment of the LFRMSs with national climate change legislation and other relevant national strategies. An objective method to identify inclusion of a range of factors that good strategies should include was applied. LFRMSs are mostly meeting their minimum statutory requirements. However, there is a widespread issue across most LFRMSs regarding inadequate consideration of increasing SWF risk from climate changes, which highlights the need for enhanced LFRMSs by improved planning and climate change adaptation plans. There is some evidence of good practice within the LFRMS portfolio, which is discussed in the context of the ongoing LFRMS update process. Beyond England, there are implications for developing FRM processes at a local level that can be objectively assessed against national requirements. Communities in England face inadequately managed SWF risk in the future because of the range in plan quality across the LFRMSs. This research contributes to the ongoing examination of the full suite of 152 LFRMSs and, therefore, builds towards a complete assessment of the SWF management approach in England. This will help inform local climate change adaptation strategies that cater to the escalating threat of SWF due to climate change. Full article

Good manufacturing practices play an important role in obtaining safe food and preventing foodborne diseases. To achieve this goal, food handlers must receive appropriate training to be aware of their responsibilities. In this work, compliance with specific personal hygiene requirements by food handlers was assessed in a cross-sectional study of traditional small retail establishments, namely butcher (n = 56) and fishmonger (n = 17) shops in Almada, Portugal. Food handlers (n = 140, of which 113 worked in butcher shops, and 27 worked in fishmonger shops) were interviewed for data collection, and retail establishments were audited considering specific hygiene requisites. In fishmonger shops, most food handlers are women (89%), aged 18 to 45 years (70%), with a high school degree, having worked for less than 5 years in this activity, while in butcher shops most food handlers are men (90%) over 45 years old (58%), with a basic education level, and more than 26 years of experience. Most food handlers (>95%) attended recent food safety and hygiene training courses and were able to recognize that hand sanitizers cannot replace a proper hand wash, and to identify Staphylococcus aureus transmission routes to food. However, approximately 23% of retail establishments failed to provide hot water in the handwashing basin and exhibited improper placement of handwashing instructions. Furthermore, these establishments did not implement corrective actions following non-conforming microbiological results of hand hygiene monitoring. These findings reinforce the need for consistent management commitment, and for providing food handlers with regular training, which is crucial for maintaining a strong food safety and hygiene culture in these traditional small retail establishments. Full article

Concerns over both water quality and quantity continue to increase globally. As the need for useable and potable water becomes more of a widespread issue, there is an opportunity to review and consider alternatives to how water is used, consumed, and sustained for future use by the world’s population. A review of data across cities within North America shows improvement opportunities in water infrastructure systems. Using water audit and loss control data from the American Water Works Association (AWWA) and the Water Research Foundation (WRF), an analysis is provided to define opportunities for mitigating water losses among select North American Water Infrastructure systems in the U.S. states of Georgia and California. The research methodology used includes statistical analysis data while grouping utility sizes to identify utility cost opportunities. Variables on water loss and customer cost that have a positive impact on overall and long-term water system sustainability are identified. The analysis shows California, while having firm water guidance and higher rates compared to Georgia, also demonstrates less overall water loss. The results of the analysis are presented, showing comparison characteristics and opportunities for additional change to improve utility funding. Full article

Risk management represents a challenge for organizations, as it includes environmental, social, and governance (ESG) issues that can negatively impact organizations’ investments. This article shows a general approach for prioritizing organizational risks focused on sustainability, which is applied in a particular case. Based on the analysis of global reports such as the “Global Sustainable Development Report”, “Enterprise Risk Management-Integrating with Strategy and Performance”, and the “Global Risk Report”, five typologies of organizational risks with a focus on sustainability (geopolitical, economic, social, technological, and environmental) that support the concern for sustainability in organizations are characterized, taking into account viability and equitability. Additionally, some sub-risks are proposed for each characterized typology of risk. Subsequently, the application of paired surveys assigned to a group of experts formed by executives from the service sector, auditing and consulting firms, the oil and gas sector, the manufacturing sector, and the financial sector is carried out; the responses obtained are consolidated and used in this study as input for the application of DEMATEL and AHP methods to prioritize risks and sub-risks, respectively. The result obtained via the DEMATEL method is the following risk prioritization: (1) economic, (2) geopolitical, (3) social, (4) technological, and (5) environmental. Using the AHP method, the sustainability sub-risks with the highest level of prioritization for each typology of risk are (1) massive data fraud or theft incident (technological risk), (2) deficit in economic growth (economic risk), (3) water depletion (environmental risk), (4) lack of ethics in the conduct of business (geopolitical risk), and (5) chemical safety (social risk). The sensitivity analysis presents positive and negative values, indicating that the positive results do not generate substantial changes between the characterized sub-risks. On the other hand, the negative results indicate a notable decrease in the relative importance of the sub-risks. It is crucial to highlight that the observed variations remain within realistic limits and reflect the uncertainty inherent in decision-making in a dynamic environment. Full article