Chapter 7

Question 1

Steps in LCA

Answer 1

1. inventory analysis
2. impact analysis
3. improvement analysis

Question 2

major components of inventory analysis

Answer 2

1. Raw material acquisition
2. Manufacturing
3. use/reuse/recycle
4. recycling waste management

Question 3

Categories of Impact

Answer 3

• Depletion of natural resources
• effects on human health
• effects on ecosystem
• impairment to human welfare

Question 4

which category is the most important

Answer 4

effects on human health

Question 5

How to rank environmental impacts (4 things)

Answer 5

-physical extent of the impacted areas (population, #trees destroyed)

• danger posed by the environmental changed
• extent of exposure
• penalty for making the wrong decision