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Questions and Answers
What is the primary purpose of the goal and scope definition phase in a Life Cycle Assessment study?
To define the purpose and boundaries of the LCA study, identify the product or service being assessed, and determine the functional unit and system boundaries.
What is the role of life cycle inventory (LCI) data in the impact assessment phase of an LCA study?
To quantify environmental exchanges and provide the basis for calculating impact scores using characterization factors.
What is the primary goal of the interpretation phase of an LCA study?
To interpret the results of the LCA study in the context of the goal and scope, identify significant environmental impacts, and provide recommendations for improvement.
What is the purpose of specifying the geographic and temporal scope of the study in the goal and scope definition phase?
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What is the role of characterization factors in the impact assessment phase of an LCA study?
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What is the significance of considering uncertainty and sensitivity analysis in the interpretation phase of an LCA study?
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Study Notes
Life Cycle Assessment
Goal and Scope Definition
- Defines the purpose and boundaries of the LCA study
- Identifies the product, process, or service being assessed
- Determines the functional unit (reference unit) for the study
- Sets the system boundaries (e.g., cradle-to-grave, cradle-to-gate)
- Specifies the geographic and temporal scope of the study
Impact Assessment
- Evaluates the potential environmental impacts of a product or service
- Uses life cycle inventory (LCI) data to quantify environmental exchanges
- Applies characterization factors to calculate impact scores
- Covers various impact categories, including:
- Climate change
- Human health
- Ecosystems
- Resources
- Waste and pollution
Interpretation
- Interprets the results of the LCA study in the context of the goal and scope
- Identifies the most significant environmental impacts and contributors
- Compares the results with benchmarks or reference values
- Provides recommendations for improvement and decision-making
- Considers uncertainty and sensitivity analysis to increase confidence in the results
Life Cycle Assessment (LCA)
Goal and Scope Definition
- Defines the purpose and boundaries of an LCA study
- Identifies the product, process, or service being assessed
- Determines the functional unit (reference unit) for the study
- Sets the system boundaries (e.g., cradle-to-grave, cradle-to-gate)
- Specifies the geographic and temporal scope of the study
Impact Assessment
- Evaluates the potential environmental impacts of a product or service
- Uses life cycle inventory (LCI) data to quantify environmental exchanges
- Applies characterization factors to calculate impact scores
- Covers various impact categories, including:
- Climate change
- Human health
- Ecosystems
- Resources
- Waste and pollution
Interpretation
- Interprets the results of the LCA study in the context of the goal and scope
- Identifies the most significant environmental impacts and contributors
- Compares the results with benchmarks or reference values
- Provides recommendations for improvement and decision-making
- Considers uncertainty and sensitivity analysis to increase confidence in the results
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Description
Learn about the goal and scope definition, impact assessment, and life cycle inventory in Life Cycle Assessment. Understand the purpose and boundaries of LCA studies and evaluate potential environmental impacts.
