Carbon Footprint

碳足迹
  • 文章类型: English Abstract
    DM2可能发展的并发症,未确诊人群(6%)强调了人群层面筛查的重要性.这项工作的目的是评估和验证在药房进行的专业活动是否是检测未诊断的2型糖尿病患者并将其转介给可能的诊断的好方法。此外,评估行动对环境的影响。
    Findrisc问卷,适用于符合纳入标准并同意参与研究的患者。如果结果≥15分,则进行基础毛细血管血糖测量,如果血糖≥110mg/dL,则转诊给医生。
    参加了44家药店。样本包括434名用户;那些高风险或非常高风险(Findrisc≥15)的人接受了毛细血管基础血糖,平均结果为124.51mg/dL(SD=33.6)。在转诊给医生的89名患者中(20.5%),诊断为2型糖尿病的患者占分析样本的3%.
    新诊断的患者数量(3%)反映出社区药房是糖尿病检测的好地方。此外,这项研究揭示了药剂师作为健康教育者的作用,因为他们为那些不接受医生转诊的患者提供健康生活习惯的指导。此外,在糖尿病筛查中,医生和药剂师之间更紧密的合作是必要的,由于信息返回率很低;尽管我们可以观察到在农村地区,在关系密切的地方,回报率为85.2%。
    UNASSIGNED: The complications that DM2 can develop, and the undiagnosed population (6%) highlight the importance of screening at the population level. The aim of this work is to evaluate and verify whether the professional activity performed in pharmacies is a good point to detect patients with undiagnosed type 2 diabetes mellitus and to refer them for a possible diagnosis. Moreover, to evaluate the environmental impact of the actions.
    UNASSIGNED: Findrisc questionnaire for patients who met the inclusion criteria and agreed to participate in the study. Basal capillary blood glucose measurement if the result was ≥15 points and referral to a physician if blood glucose was ≥110mg/dL.
    UNASSIGNED: 44 pharmacies participated. The sample included 434 users; those with high or very high risk (Findrisc ≥15) underwent capillary basal glycemia, with a mean result of 124.51 mg/dL (SD=33.6). Out of the 89 patients referred to the physician (20.5%), the patients diagnosed with diabetes type 2 accounted for 3% of the analyzed sample.
    UNASSIGNED: The number of newly diagnosed patients (3%) reflects that the community pharmacy is a good place for diabetes detection. In addition, the study reveals pharmacists\' usefulness in their role as a health educator, since they provide guidance on healthy lifestyle habits to those patients not subject to physician referral. Furthermore, closer collaborations between physicians and pharmacists would be necessary in diabetes screening, since the return of information was low; although we can observe that in rural areas, where the relationship is close, the return rate was 85.2%.
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  • 文章类型: Journal Article
    由于快速城市化和气候多变性,雨水管理问题随着降水的频率和强度的增加而恶化,特别是在城市高度建成区。基于自然的解决方案(NBS)由于能够减轻城市内涝和增加碳固存而成为应对这些挑战的有力措施。确定NBS实施的最佳位置仍然是一个关键的研究重点。本研究将碳和水足迹核算纳入基于NBS的广州中部城市可持续发展规划,中国,加强城市洪水缓解和碳封存。通过碳水足迹分析和加权,我们优先考虑国家统计局的规划。为了实现增加固碳和减少城市径流的目标,三种类型的NBS绿色屋顶,透水路面,和生物滞留系统-针对高优先级的城镇街道进行了优化。结果表明,绿色屋顶和透水路面的实施使地表径流减少了3.58%,而生物滞留系统使径流灰水减少了27%。此外,绿色屋顶和生物保留的应用使碳固存增加了257万kgCO2-eq(生命周期)。这项研究的结果为基于碳水足迹核算的NBS规划优化提供了全面的见解,促进缓解城市洪水脆弱性和碳固存。
    Stormwater management problems have been deteriorated with the high frequency and intensity of precipitation owing to rapid urbanization and climate variability, especially in urban highly built-up area. Nature-based solutions (NBS) have emerged as a powerful measure for rising these challenges due to their ability to mitigate urban waterlogging and increase carbon sequestration. Identifying optimal locations for NBS implementation remains a critical research focus. This study integrates carbon and water footprint accounting into NBS-based planning for sustainable urban development in central Guangzhou, China, to enhance urban flooding mitigation and carbon sequestration. Through carbon-water footprint analysis and weighting, we prioritized NBS planning. To achieve the objectives of increasing sequestered carbon and reducing urban runoff, three types of NBS-green roofs, permeable pavements, and bioretention systems-were optimized for a high-priority town street. The results showed that the implementation of green roof and permeable pavement reduced the surface runoff by 3.58 %, while the biological retention system reduced the runoff gray water by 27 %. Moreover, the application of green roof and biological retention increased the carbon sequestration by 2.57 million kg CO2-eq (life cycle). The findings of this study provide comprehensive insights into optimization of NBS planning based on carbon-water footprint accounting, facilitating to enhance mitigation of urban flooding vulnerability and carbon sequestration.
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  • 文章类型: Journal Article
    在不伦瑞克的污水处理厂(WWTP)实施了创新的循环经济(CE)系统。对CE系统的性能进行了4年的评估:热压水解将甲烷产量提高了18%,将消化产物的脱水能力提高了14%。在热水解过程中形成了难降解的COD,并使污水处理厂废水中的COD浓度增加了4mgL-1,同时仍符合法定阈值。鸟粪石生产达到>80%的高磷回收率,Mg:P摩尔比≥0.8。以硫酸铵的形式成功回收氮气,回收率高达85-97%。二级肥料的化学分析显示污染物含量低,对土壤和地下水生态系统构成低风险。污水处理厂的总碳足迹因沼气产量增加而减少,回收可再生肥料和进一步减少一氧化二氮排放。使用绿色能源对于实现整个污水处理厂的碳中和至关重要。
    An innovative circular economy (CE) system was implemented at the wastewater treatment plant (WWTP) in Brunswick. The performance of the CE system was evaluated for 4 years: the thermal pressure hydrolysis enhanced the methane production by 18% and increased the digestate dewaterability by 14%. Refractory COD formed in thermal hydrolysis and increased the COD concentration in the WWTP effluent by 4 mg L-1 while still complying with the legal threshold. Struvite production reached high phosphorus recovery rates of >80% with a Mg:P molar ratio ≥0.8. Nitrogen was successfully recovered as ammonium sulfate with high recovery rates of 85-97%. The chemical analyses of secondary fertilizers showed a low pollutant content, posing low risks to soil and groundwater ecosystems. The total carbon footprint of the WWTP decreased due to enhanced biogas production, the recovery of renewable fertilizers and a further reduction of nitrous oxide emissions. Using green energy will be crucial to reach carbon neutrality for the entire WWTP.
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  • 文章类型: Journal Article
    医疗保健占全球碳排放量的4%至10%,其中22%与运输有关。远程医疗成为减少足迹的潜在解决方案,例如,减少旅行。然而,需要了解哪些变量应包括在远程医疗碳足迹估算中,这限制了我们对远程医疗可能对我们的环境产生有益影响的理解。本文旨在系统地评估报告的碳足迹,并包括文献评估的变量,将远程医疗与常规护理进行比较。
    系统审查遵循了PubMed中的PRISMA指南,Medline,Embase和Scopus。使用碳足迹计算器的透明度清单进行质量评估。碳排放基于四个类别进行了评估,包括病人旅行,和简化的生命周期评估(LCA),用于评估与远程医疗相关的变量。
    我们从1117条记录中收录了33篇文章进行分析。平均透明度评分为38%(范围18%-68%)。每位患者的往返行程中位数为131km(四分位距[IQR]:60.8-351),或25.6kgCO2(IQR:10.6-105.6)排放量。所包含的变量之间存在很大的差异。由于不包括简化的LCA等外部因素,因此在结构上低估了减排量。
    远程医疗有助于减少排放,旅行距离是最重要的贡献者。此外,我们建议考虑LCA,因为它突出了重要的细微差别。这篇评论进一步推动了关于评估远程医疗碳足迹节约的辩论。
    UNASSIGNED: Healthcare is responsible for 4% to 10% of carbon emissions worldwide, of which 22% is related to transport. Telemedicine emerged as a potential solution to reduce the footprint, for example, by reducing travel. However, a need to understand which variables to include in carbon footprint estimations in telemedicine limits our understanding of the beneficial impact telemedicine might have on our environment. This paper aims to systematically assess the reported carbon footprint and include variables assessed by the literature, comparing telemedicine with usual care.
    UNASSIGNED: The systematic review followed the PRISMA guidelines in PubMed, Medline, Embase and Scopus. A quality assessment was performed using a transparency checklist for carbon footprint calculators. Carbon emissions were evaluated based on four categories, including patient travel, and streamlined life cycle assessment (LCA) for assessing included variables relevant to telemedicine.
    UNASSIGNED: We included 33 articles from 1117 records for analysis. The average transparency score was 38% (range 18%-68%). The median roundtrip travel distance for each patient was 131 km (interquartile range [IQR]: 60.8-351), or 25.6 kgCO2 (IQR: 10.6-105.6) emissions. There is high variance among included variables. Saved emissions are structurally underestimated by not including external factors such as a streamlined LCA.
    UNASSIGNED: Telemedicine aids in reducing emissions, with travel distance being the most significant contributor. Additionally, we recommend accounting for the LCA since it highlights important nuances. This review furthers the debate on assessing carbon footprint savings due to telemedicine.
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  • 文章类型: Journal Article
    过敏性疾病如哮喘,特应性皮炎,食物过敏是亚太地区新兴的健康挑战。更复杂的是,该地区越来越容易受到气候变化的影响。该地区经历了极端降水,强烈的热浪,和最近几十年的沙尘暴。虽然环境和遗传因素对过敏性疾病的影响是众所周知的,在理解气候变化和这些因素之间复杂的相互作用方面仍然存在着普遍的差距。我们旨在深入了解气候变化影响亚太地区人口过敏性疾病的各种途径。我们概述了过敏症医生可以采取的实际步骤,以减少其在系统和患者特定水平上的碳足迹。我们建议过敏症专家优化疾病控制,以减少每个患者护理所需的资源,这有助于减少温室气体排放。我们鼓励负责任的处方计量吸入器,促进某些患者改用干粉吸入器,在每个临床医生的判断。我们还建议利用虚拟咨询来减少患者旅行,同时确保严格遵守基于证据的合理过敏管理指南。最后,消除不必要的测试和药物治疗也将减少许多医疗领域的温室气体排放。
    Allergic diseases such as asthma, atopic dermatitis, and food allergies are a burgeoning health challenge in the Asia-Pacific region. Compounding this, the region has become increasingly susceptible to the impacts of climate change. The region has weathered extreme precipitation, intense heat waves, and dust storms over the recent decades. While the effects of environmental and genetic factors on allergic diseases are well understood, prevailing gaps in understanding the complex interactions between climate change and these factors remain. We aim to provide insights into the various pathways by which climate change influences allergic diseases in the Asia-Pacific population. We outline practical steps that allergists can take to reduce the carbon footprint of their practice on both a systemic and patient-specific level. We recommend that allergists optimize disease control to reduce the resources required for each patient\'s care, which contributes to reducing greenhouse gas emissions. We encourage the responsible prescription of metered dose inhalers by promoting the switch to dry powder inhalers for certain patients, at each clinician\'s discretion. We also recommend the utilization of virtual consultations to reduce patient travel while ensuring that evidence-based guidelines for rational allergy management are closely adhered to. Finally, eliminating unnecessary testing and medications will also reduce greenhouse gas emissions in many areas of medical care.
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  • 文章类型: Journal Article
    食品工业是碳排放的重要贡献者,影响碳足迹(CF),特别是在热干燥过程中。传统的热干燥过程需要高能量,并降低了食品的营养价值和感官质量。因此,这项研究旨在研究人工智能(AI)在食品加工中的集成,以提高质量并减少CF,专注于热干燥,一种高耗能的方法,并为该行业提供符合可持续发展目标的有希望的途径。我们的发现表明,人工智能可以保持食品质量,包括干燥产品的营养和感官特性。它确定了提高能源效率的最佳干燥温度,产量,和生命周期成本。此外,数据集训练是AI应用于食品干燥的关键挑战之一。AI需要一个庞大而高质量的数据集,直接影响AI模型的性能和能力,以优化和自动化食品干燥。
    The food industry is a significant contributor to carbon emissions, impacting carbon footprint (CF), specifically during the heat drying process. Conventional heat drying processes need high energy and diminish the nutritional value and sensory quality of food. Therefore, this study aimed to investigate the integration of artificial intelligence (AI) in food processing to enhance quality and reduce CF, with a focus on heat drying, a high energy-consuming method, and offer a promising avenue for the industry to be consistent with sustainable development goals. Our finding shows that AI can maintain food quality, including nutritional and sensory properties of dried products. It determines the optimal drying temperature for improving energy efficiency, yield, and life cycle cost. In addition, dataset training is one of the key challenges in AI applications for food drying. AI needs a vast and high-quality dataset that directly impacts the performance and capabilities of AI models to optimize and automate food drying.
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  • 文章类型: Journal Article
    背景:可持续低碳卫生系统是联合国气候变化大会(COP27)的目标之一。文献指出,4.9%的温室气体排放来自卫生部门。
    目的:本研究旨在量化和可视化趋势,引文,关于重症监护碳足迹的关键术语和出版物国家,并审查其内容。
    方法:对通过使用关键字“环境可持续性”搜索SCOPUS数据库选择的14篇文章进行了文献计量分析,\'环境足迹\',“碳足迹”和“重症监护病房”。MSExcel用于创建图形,并使用VOSviewer进行网络分析。内容分析方法用于描述每个文档中的细节。
    结果:大多数关于重症监护碳足迹和环境可持续性的文章发表于2023年(n=7,47%),2014年首次出版。文章“麻醉和重症监护中的环境可持续性”,来自英国麻醉杂志,被引用最多的,166次引用。碳足迹研究是在英国进行的,澳大利亚,美国和荷兰。
    结论:最大限度地减少用电量和废物产生(减少,重复使用和回收更多)可以减少重症监护的碳足迹。关于这个问题的研究数量有限,虽然没有一个是专门针对护士的,可持续性和环境影响是所有重症监护人员的相关主题。
    结论:护士和其他卫生保健专业人员可以通过更好地了解如何减少重症监护病房的碳足迹来改善环境可持续性。
    BACKGROUND: Sustainable low-carbon health systems are among the United Nations Climate Change Conference (COP27) goals. The literature states that 4.9% of greenhouse gas emissions originate from the health sector.
    OBJECTIVE: This study aimed to quantify and visualize trends, citations, key terms and countries of publications about the carbon footprint of intensive care and review their contents.
    METHODS: A bibliometric analysis was conducted on 14 articles selected by searching the SCOPUS database using the keywords \'Environmental sustainability\', \'Environmental footprint\', \'Carbon footprint\' and \'Intensive care unit\'. MS Excel was used to create graphs, and VOSviewer was used to perform network analysis. Content analysis methods were used to describe the details in each document.
    RESULTS: Most articles on intensive care carbon footprint and environmental sustainability were published in 2023 (n = 7, 47%), with the first publication in 2014. The article \'Environmental sustainability in anaesthesia and critical care\', from the British Journal of Anaesthesia, was the most cited, with 166 citations. The carbon footprinting studies were conducted in the United Kingdom, Australia, United States and the Netherlands.
    CONCLUSIONS: Minimizing electricity usage and waste generation (reducing, reusing and recycling more) can reduce the carbon footprint of intensive care. The number of studies on the subject was limited, and although none were specifically about nurses, sustainability and environmental impact are relevant topics for all intensive care staff.
    CONCLUSIONS: Nurses and other health care professionals can improve environmental sustainability by better understanding how to reduce the carbon footprint of intensive care units.
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  • 文章类型: Journal Article
    稻壳(RH),咖啡(CH),和chroupa(CLH)用于生产天然吸附剂。天然吸附剂用于去除药物,如双氯芬酸,环丙沙星,和对乙酰氨基酚在蒸馏水的混合物中。然而,由于酸性基团的浓度较高,CH因其去除环丙沙星的效率(74%)而脱颖而出,如Boehm方法所示。此外,CH单独去除86%的环丙沙星。因此,选择CH并用于去除其他氟喹诺酮类药物,如左氧氟沙星和诺氟沙星。尽管静电相互作用有利于去除,由于环丙沙星的分子体积较小,因此可以更好地去除环丙沙星。然后,选择环丙沙星,和pH的影响,矩阵,和吸附剂剂量进行了评估。这样,使用pH值为6.2的尿液,剂量为1.5gL-1,可以吸附范围内的ClP浓度(0.0050-0.42mmolL-1)。随后,高R2值和低百分比的APE和Δq表明对伪二级动力学的拟合更好,表明有两阶段吸附。同时,Langmuir等温线建议单层吸附,Qm为25.2mgg-1。此外,该过程的成本估计为0.373美元/gCIP,其中该材料可重复使用4次,尿液中aCIP去除量为51%。因此,热力学分析表明,放热和自发过程具有高度无序性。此外,吸附后FTIR分析的变化表明,CH在去除尿液中的CIP涉及静电吸引,氢键和π-π相互作用。此外,生命周期分析提出,对于评估的11个类别,与制备吸附剂相比,用CH去除尿液中的CIP对环境的影响更低,确认吸附过程比材料合成或其他替代处理更环保。此外,提出了基于实际应用的未来研究方向。
    Husks of rice (RH), coffee (CH), and cholupa (CLH) were used to produce natural adsorbents. The natural adsorbents were used to remove pharmaceuticals such as diclofenac, ciprofloxacin, and acetaminophen in a mixture of distilled water. However, CH stood out for its efficiency in removing ciprofloxacin (74%) due to the higher concentration of acidic groups, as indicated by the Boehm method. In addition, CH removed 86% of ciprofloxacin individually. Therefore, CH was selected and used to remove other fluoroquinolones, such as levofloxacin and Norfloxacin. Although electrostatic interactions favored removals, better removal was observed for ciprofloxacin due to its smaller molecular volume. Then, ciprofloxacin was selected, and the effect of pH, matrix, and adsorbent doses were evaluated. In this way, using a pH of 6.2 in urine with a dose of 1.5 g L-1, it is possible to adsorb CIP concentrations in the range (0.0050-0.42 mmol L-1). Subsequently, the high R2 values and low percentages of APE and Δq indicated better fits for pseudo-second-order kinetics, suggesting a two-stage adsorption. At the same time, the Langmuir isotherm recommends a monolayer adsorption with a Qm of 25.2 mg g-1. In addition, a cost of 0.373 USD/g CIP was estimated for the process, where the material can be reused up to 4 times with a CIP removal in the urine of 51%. Consequently, thermodynamics analysis showed an exothermic and spontaneous process with high disorder. Furthermore, changes in FTIR analysis after adsorption suggest that CH in removing CIP in urine involves electrostatic attractions, hydrogen bonds and π-π interactions. In addition, the life cycle analysis presents, for the 11 categories evaluated, a lower environmental impact of the CIP removal in urine with CH than for the preparation of adsorbent, confirming that the adsorption process is more environmentally friendly than materials synthesis or other alternatives of treatments. Furthermore, future directions of the study based on real applications were proposed.
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  • 文章类型: Journal Article
    材料及其产品的开发应应对市场变化和气候变化带来的新挑战。因此,这项调查的目的是开发一种方法,根据生命周期(QLCA)中的质量和环境负荷的综合指标,支持材料和由材料制成的产品的可持续发展.QLCA方法的测试和说明包括一个乘用车轮胎和九个原型。使用八个质量标准描述了这些原型:季节,类,负载指数的大小,速度指数,滚动,附着力,外部噪音。然后,获得了客户对标准重要性的期望,以及对当前和修改状态下指标的满意度。根据客户评估,评估原型的质量指标。这项评估得到了加权和模型(WSM)和熵值法的支持。然后,使用OpenLCA程序中的Ecoinvent数据库对参考轮胎进行了生命周期评估。LCA指标是为其他原型建模的,考虑到质量变化。作为方法验证的结果,估计了一个汇总的QLCA指标,在此基础上,有可能从9个原型中选择最有利的(定性和环境)原型。这是P4原型(QLCA=0.57)。排名的下一个位置由P7(QLCA=0.43)。QLCA方法可用于确定材料和产品可持续发展的发展方向。
    The development of materials and the products made from them should respond to new challenges posed by market changes and also by climate change. Therefore, the objective of this investigation was to develop a method that supports the sustainable development of materials and the products made from them based on an aggregated indicator of quality and environmental load in the life cycle (QLCA). The testing and illustration of the QLCA method included a passenger car tyre and nine prototypes. These prototypes were described using eight quality criteria: season, class, size of the load index, speed index, rolling, adhesion, and external noise. Then, customer expectations regarding the importance of the criteria and satisfaction with the indicators in the current and modified states were obtained. Based on the customer assessment, the quality indicators of the prototypes were assessed. This assessment was supported by the weighted sum model (WSM) and the entropy method. Then, life cycle assessment for the reference tyre was performed using the Ecoinvent database in the OpenLCA program. LCA indicators were modelled for other prototypes, taking into account quality changes. As a result of the verification of the method, an aggregated QLCA indicator was estimated, based on which it was possible to select the most favourable (qualitatively and environmentally) prototype out of nine. This was the P4 prototype (QLCA = 0.57). The next position in the ranking was taken by P7 (QLCA = 0.43). The QLCA method can be used to determine the direction of development of materials and products in terms of their sustainable development.
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