The importance of life cycle sustainability in the construction sector is increasing in the light of rising awareness on sustainability issues in society. A means to identify more sustainable options is to assess and compare their sustainability performance. The standards ISO 21931-2 and EN 15643-1 to 5 establish the framework and requirements for sustainability assessment of buildings and civil engineering works. The standards require life cycle assessment (LCA) to be the basis for the environmental part of the sustainability assessment. LCA is a powerful evidence-based method but it requires extensive data. Access to free, easily available and preferably machine-readable LCA data is essential to increase the use of LCA in the construction sector and to make competition fair for all tenderers. This paper aims to compile existing online sources for open-access LCA data of interest for the construction sector. The purpose is to provide a reference document that facilitates the use of LCA in construction. An in-depth search of publications and internet resources was performed, focusing on European sources of Environmental Product Declarations (EPD) and process-based LCA datasets. A comprehensive overview of the European data sources available online and relevant to the construction sector is presented. This research work reveals the existence of numerous sources, often difficult and time-consuming to find. The overview in the paper facilitates finding online data needed for LCA, in many cases in a machine-readable format. This can contribute to increasing the use of LCA in the construction sector, which is important when developing buildings or civil engineering works that are more sustainable over their whole life cycle. A greater use and better integration of LCA in the design process contributes to evidence-based life cycle sustainability of our built environment.

随着社会对可持续性问题的认识不断提高，建筑行业生命周期可持续性的重要性正在增加。确定更可持续选择的一种方法是评估和比较它们的可持续发展绩效。ISO 21931-2 和 EN 15643-1 至 5 标准建立了建筑和土木工程可持续性评估的框架和要求。该标准要求生命周期评估 (LCA) 作为可持续性评估的环境部分的基础。LCA 是一种强大的基于证据的方法，但它需要大量数据。获取免费、易于获得且最好是机器可读的 LCA 数据对于增加 LCA 在建筑行业的使用和使所有投标人的竞争公平至关重要。本文旨在为建筑行业的开放获取 LCA 数据汇编现有的在线资源。目的是提供一个参考文件，方便 LCA 在施工中的使用。对出版物和互联网资源进行了深入搜索，重点关注欧洲环境产品声明 (EPD) 来源和基于流程的 LCA 数据集。提供了在线可用且与建筑行业相关的欧洲数据源的全面概述。这项研究工作揭示了许多来源的存在，通常很难找到并且耗时。本文中的概述有助于查找 LCA 所需的在线数据，在许多情况下以机器可读的格式。这有助于增加 LCA 在建筑行业的使用，这对于开发在整个生命周期中更具可持续性的建筑物或土木工程工程非常重要。在设计过程中更多地使用和更好地整合 LCA 有助于我们建筑环境的基于证据的生命周期可持续性。