Template for Evaluating Cradle-to-Site Environmental Life Cycle Impacts of Buildings in India

IF 6.7 Q1 ENGINEERING, ENVIRONMENTAL ACS Environmental Au Pub Date : 2022-11-29 DOI:10.1021/acsenvironau.2c00035
Abhishek Chaudhary*,  and , Amaan Akhtar, 
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Abstract

A massive amount of building construction is expected in economically developing nations such as India over the next few years. The first step in ensuring that the new construction takes place in a sustainable manner is the knowledge about the building’s impact on multiple environmental domains. Life cycle assessment (LCA) is a promising tool for this, but its application in the Indian construction sector is hampered by a lack of access to detailed inventory data on amounts of all building materials used and the per unit environmental footprints of individual materials (characterization factors). Here, we overcome these limitations by proposing a novel approach that connects the building bill of quantity data with publicly available analysis of rate documents to obtain the detailed material inventory. The approach then combines the material inventory data with the newly available India-specific environmental footprint database of construction materials to calculate the impacts of a building during its different life cycle stages (cradle to site). We demonstrate the new approach through a case study of a residential building within a hospital in North-East India and quantify its environmental footprint on six domains of the environment: energy use, global warming, ozone depletion, acidification, eutrophication, and photochemical oxidant formation potential. Results show that out of 78 materials used, bricks, aluminum sections, steel bars, and cement are the major contributors to the building’s total environmental impact. The material manufacturing stage is the hotspot in the building’s life cycle. Our approach can act as a template for conducting “cradle-to-site” LCA of buildings for which BOQ data becomes available in India and other countries in the future.

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印度建筑从摇篮到现场的环境生命周期影响评估模板
未来几年,印度等经济发展中国家预计将进行大量的建筑施工。确保新建筑以可持续的方式进行的第一步是了解建筑对多个环境领域的影响。生命周期评估(LCA)是一种很有前途的工具,但由于无法获得有关所有建筑材料使用量和单个材料的单位环境足迹(特征因子)的详细库存数据,它在印度建筑行业的应用受到了阻碍。在这里,我们通过提出一种新的方法来克服这些限制,该方法将建筑工程量清单数据与公开的费率文件分析联系起来,以获得详细的材料库存。然后,该方法将材料库存数据与新提供的印度特定建筑材料环境足迹数据库相结合,以计算建筑在不同生命周期阶段(从摇篮到现场)的影响。我们通过对印度东北部一家医院内的住宅楼的案例研究,展示了这一新方法,并量化了其对环境六个领域的环境足迹:能源使用、全球变暖、臭氧消耗、酸化、富营养化和光化学氧化剂形成潜力。结果表明,在使用的78种材料中,砖、铝型材、钢筋和水泥是对建筑总环境影响的主要贡献者。材料制造阶段是建筑生命周期中的热点。我们的方法可以作为对印度和其他国家未来可获得BOQ数据的建筑进行“从摇篮到现场”LCA的模板。
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ACS Environmental Au
ACS Environmental Au 环境科学-
CiteScore
7.10
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0.00%
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0
期刊介绍: ACS Environmental Au is an open access journal which publishes experimental research and theoretical results in all aspects of environmental science and technology both pure and applied. Short letters comprehensive articles reviews and perspectives are welcome in the following areas:Alternative EnergyAnthropogenic Impacts on Atmosphere Soil or WaterBiogeochemical CyclingBiomass or Wastes as ResourcesContaminants in Aquatic and Terrestrial EnvironmentsEnvironmental Data ScienceEcotoxicology and Public HealthEnergy and ClimateEnvironmental Modeling Processes and Measurement Methods and TechnologiesEnvironmental Nanotechnology and BiotechnologyGreen ChemistryGreen Manufacturing and EngineeringRisk assessment Regulatory Frameworks and Life-Cycle AssessmentsTreatment and Resource Recovery and Waste Management
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