Fundamental Study on Sustainability Indicators based on Material Flow Analysis

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In analyzing material flow of Japanese manufacturing industries based on three aspects those are 'input', 'throughput' and 'output', this study evaluated a kind of environmental efficiency in each aspect. The ratio of Gross Domestic Products to terminal waste disposal could be applied to a comprehensive indicator for social and economic sustainability combining those environmental efficiencies. It varied between less than 1(yen/g) and 54(yen/g) over the countries and this means several possibilities of the environmental improvement in some regions. Furthermore, the result of multidirectional analysis using more detailed manufacturing classification extracted future environmental scope of each region and each manufacturing category.