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| Author: | Gutiérrez, E.(et al.) |
| Title: | Assessing relationships among life-cycle environmental impacts with dimension reduction techniques |
| Journal: | Journal of Environmental Management
2010 : MAR-APR, VOL. 91:4, p. 1002-1011 |
| Index terms: | multivariate analysis case studies environmental protection |
| Freeterms: | Life-Cycle Assessment (LCA) principal component analysis multi-Dimensional Scaling dimension reduction techniques |
| Language: | eng |
| Abstract: | Life-Cycle Assessment (LCA) is a quantitative analysis tool developed and utilized for the evaluation of environmental impacts occurring throughout the entire life-cycle of a product, process or activity. In the article, a methodology using Principal Component Analysis and Multi-Dimensional Scaling is proposed and illustrated by means of two case studies. 1) The first case study evaluates the operation of several waste water treatment plants. 2) The second case study deals with the environmental evaluation of the cultivation, processing and consumption of mussels. The author argues that in both case studies, the redundancy present in the data allowed a dimensionality reduction from seven and ten to two dimensions, with a small loss of information. Plotting the environmental impact data in these two dimensions can help visualize, interpret and communicate them. |
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