A study on the evaluation of environmental impacts caused by technology developments

2003 EcoDesign 3rd International Symposium on Environmentally Conscious Design and Inverse Manufacturing Pub Date : 1900-01-01 DOI:10.1109/ECODIM.2003.1322634

T. Fujiwara, R. Suwa, Y. Matsuoka

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Abstract

Technology development for reduction of energy and material consumption should be welcomed and promoted, however, the development may require additional consumption of energy and material by the sector which has an indirect relationship with the technology. Moreover, the additional consumption causes environmental impacts. In this study, we propose a method to evaluate direct and indirect environmental impacts which are effected by the technology development by using the input and output table. The technology development is described as change of input coefficient of the IO table, and changes in emission of CO/sub 2/, NOx, SOx and SPM and the quantity of final disposal are calculated as the spillover effect. Under a scenario where the automobile sector replaced the steel materials used in car bodies or parts with light nonferrous metal and carbon fiber materials, environmental impacts are estimated. As a result, it is found that the technology development in the scenario makes CO/sub 2/ emission decrease but emission of other air pollutants and the quantity of final disposal increase.

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技术发展对环境影响的评价研究

应该欢迎和促进减少能源和材料消耗的技术发展，但是，这种发展可能需要与技术有间接关系的部门额外消耗能源和材料。此外，额外的消费还会对环境造成影响。在本研究中，我们提出了一种利用投入产出表来评估技术发展对环境的直接和间接影响的方法。将技术发展描述为IO表输入系数的变化，将CO/sub 2/、NOx、SOx和SPM排放量的变化以及最终处理量的变化计算为溢出效应。如果汽车行业用轻质有色金属和碳纤维材料代替车身或零部件所用的钢铁材料，将会对环境造成影响。结果发现，该情景下的技术发展使CO/sub - 2/排放量减少，但其他大气污染物的排放量和最终处理量增加。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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2003 EcoDesign 3rd International Symposium on Environmentally Conscious Design and Inverse Manufacturing

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