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A life cycle impact assessment method based on the multi-environmental spatial dimension

机译：基于多环境空间维度的生命周期影响评估方法

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摘要

As the most important and controversial phase of life cycle assessment, life cycle impact assessment (LCIA) has drawn the most attention. How to reflect the spatial characteristics of environmental impacts have become a significant problem, which is urgently needed to be solved to improve the transparency and the reliability of LCIA, especially for the distinct diversity of environments in China. Based on the multi-environmental spatial dimension, this paper proposes a new LCIA method under the framework of ISO14040. First, pollutants released or materials consumed in the life cycle of a product are related to spatial characteristics in order to reflect the diversity of the regional environment. The calculation method of the space characteristic coefficient is presented by analysing the endurance capacity of the regional environment and environmental standards. Second, midpoint and endpoint categories are combined and their relationships are discussed according to the environmental mechanism. Third, normalisation references are proposed that can reflect the latest and most detailed knowledge of environmental science. Also, the distance-to-target method is selected as the weighting method and a single index could be obtained after the weighting. Finally, this LCIA method is employed to study electro-motors in China.
机译：作为生命周期评估的最重要且最具争议的阶段，生命周期影响评估（LCIA）引起了最多的关注。如何反映环境影响的空间特征已成为一个重大问题，迫切需要解决这一问题，以提高LCIA的透明度和可靠性，特别是针对中国独特的环境多样性而言。基于多环境空间维度，本文提出了一种在ISO14040框架下的新的LCIA方法。首先，产品的生命周期中释放的污染物或消耗的材料与空间特征相关，以反映区域环境的多样性。通过分析区域环境的承受能力和环境标准，提出了空间特征系数的计算方法。其次，结合中点和端点类别，并根据环境机制讨论它们之间的关系。第三，提出了标准化参考，可以反映最新和最详细的环境科学知识。另外，选择目标距离法作为加权方法，并且在加权之后可以获得单个指标。最后，这种LCIA方法被用于研究中国的电动机。

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