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This study presents a scoring system for Environmental Impact Assessment (EIA) utilizing the Leopold matrix, aimed at evaluating local pollutant potential in urban and industrial areas. It reviews existing literature and outlines the methodology employed, including data collection and statistical analysis of contamination factors. Preliminary results indicate a variation in environmental impacts between different urban areas. Future work will involve refining the scoring matrix, identifying additional factors, and exploring statistical analyses to assess pollutant potential over time.
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A score system study for land-use planning土地利用規劃之評分系統研究 Presenter：Song-Yi Yang Adviser：Louis L. Tsai Date：2010/10/07
Outline • Introduction • Objectives • Literatures Reviews • Methods • Preliminary Results • Conclusion • Future Works
Introduction • Environmental Impact Assessment (EIA) System (行政院環保署) Barrett et al. (2007)
Introduction Leopold Matrix System (Leopold, 1971) Ai Ij
Objectives To establish a score system for environmental impact assessment by using Leopold matrix. To evaluate local pollutant potential of urban and industrial area.
Literatures Review Environmental impact assessment (EIA) • EIA factors includes natural、social environment、pollutions、ecology、economic、culture…, it considered by effect area Tzilivakis et al. (2005) ; Larsen et al. (2010) ; Munier (2004). • EIA Methods in Cheng (2006) mentioned that Leopold matrix can show the effect for specific factors. (Whitlatch, 1976) • Da-tan ofGuan-yin area and Jong-fu ofLu-ju area were polluted by cadmium contaminant by chemical factories (Cheng et al., 1994); it could move away by river flow (Hsu and Lo, 2000) .
Data Collection Methods Area Separation EIA Factors Preliminary EIA Matrix Factor Grading Statistical Analysis Weighting of Factors EIA Matrix and Score Area Grades Results and Discussions Conclusions and Future works
Methods • CF (Contamination Factors) We can assess heavy metal pollutions by pollution Index such as CF (Contamination Factors) Wang et al. (2008) ; Wu and Cao (2010)
Methods PSI (Pollutant Standard Index) EPA (Air Pollution Control Act ) Cp: Concentration of pollutantp BPHi: Breakpoint concentration ≧ Cp， IHi: PSI corresponding to BPHi BPLo: Breakpoint concentration ≦ Cp， ILo: PSI corresponding to BPLo
Methods RPI (River Pollutant Index) EPA (Water Pollution Control Act )
Waste disposal (t/day‧person) Data of ESI for Taipei-city including waste outputs. (Lee et al., 2002) Methods
Preliminary Results Monthly coastal air survey station PSI distribution
Primary Results River RPI Changed by Season
Preliminary Results River CF Changed by year
Preliminary Results Annual waste collected by urban plan area
Preliminary Results Matrix
Conclusion • CF, PSI, RPI and Waste disposal can be combined to assess local environmental impact. • Tsou-Ta urban area exhibits higher environmental impact; whereas Fu-gang urban area exhibits lower environmental impact.
Future Works • Finding more factors for the matrix in this study. • Using statistical analysis to infer weighting of factors. • Plotting time-space distributiongraph and evaluate pollutant potential for urban and industrial areas.
