Chapter 3/4 Review

Question 1

What are the key issues with an LCA?

Answer 1

• How to select a functional unit
• How to allocate emissions and resources to multiple products (byproducts)
• How to consider recycling at the end of product life
• How to choose specific data or average data (Attributional vs. consequential
  LCA)
• How to consider renewability and biodegradability in the analysis.
• How to deal with uncertainty by sensitivity analysis

Question 2

What are the global impact assessments?

Answer 2

Global Warming Potential
Ozone Depletion Potential

Question 3

What are the regional/local impact assessments?

Answer 3

-Acidification Potential
-Smog formation potential
-Ecosystem impact
-Human Toxicity
-Eutrophication Potential

Question 4

What are the public health impact assessments?

Answer 4

Short-term impact (non-carcinogenic)
Long-term impact (Carcinogenic)
Intake fraction
Characterization factor

Question 5

Write down the general form for a dimensionless impact index?

Answer 5

Check Chapter 3/4 review slides

Question 6

What are the impact indices discussed in class?

Answer 6

-Global Warming Impact
-Ozone depletion
-Acid formation
-Smog formation
-Eco-toxicity impact
-Public health impact