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2. ASMI. 2001. Cement and structural concrete products. Update: Raw materials balances, energy profiles, and environmental unit factor estimates. Ottawa, Canada: ASMI.
3. Life cycle impact assessment sophistication
4. Midpoints versus endpoints: The sacrifices and benefits
5. CalEPA (California Environmental Protection Agency). 1996. Risk assessment guidelines, Part 4: Technical support document: Exposure assessment and stochastic analysis. Sacramento, CA: State of California Office of Environmental Health Hazard Assessment.