NR 314 Final Exam – Questions With Guaranteed
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Terms in this set (125)
any particular impact resulted from a production
LCA Impact Assessment
system
-Aggregate information
-Connect LCI with potential environmental impacts
Characteristics of LCIA -estimate relative potential harm to both humans
and ecosystems
-evolves over time
Why does LCIA evolve New data, new knowledge, new framework
over time?
Two types of LCIA Endpoint and Midpoint
Endpoint includes damage that occurs to areas we want to protect
Specific examples of human health, natural environment, natural
endpoint resources
climate change, ozone depletion, human toxicity
Specific examples of
(cancer) human toxicity (non cancer), respiratory
midpoint
inorganic
Midpoint includes environmental mechanisms?
1. Classification
What are the 4 steps of 2. Characterization
LCIA? 3. Normalization
4. Weighting
, -assignment of emissions to impact categories
according to their potential effects
1. Classification is
- What impact category does an LCI item contribute
to?
-Quantification of contributions to the different
impact categories
2. Characterization is:
-How much does an LCI item contribute to the
impact category?
-Expression of the impact potentials relative to a
reference situation
3. Normalization is
- How much is the characterized results as
compared to a reference?
-assignment of weights to the different impact
potentials
4. Weighting:
-How important each impact category is compared
to others
What is the formula for Impact indicators= inventory data x characterization
characterization? factor (or impact category)
What are examples of Eco-Indicator 99, TRACI
characterization
methods?
What is the formula for Normalization= impact indicator result/reference
normalization: value
For normalization, the country, year
reference will vary by _____
and _____
For weighting, a percentage
normalized results are
always expressed as _____
Solutions
Save
Terms in this set (125)
any particular impact resulted from a production
LCA Impact Assessment
system
-Aggregate information
-Connect LCI with potential environmental impacts
Characteristics of LCIA -estimate relative potential harm to both humans
and ecosystems
-evolves over time
Why does LCIA evolve New data, new knowledge, new framework
over time?
Two types of LCIA Endpoint and Midpoint
Endpoint includes damage that occurs to areas we want to protect
Specific examples of human health, natural environment, natural
endpoint resources
climate change, ozone depletion, human toxicity
Specific examples of
(cancer) human toxicity (non cancer), respiratory
midpoint
inorganic
Midpoint includes environmental mechanisms?
1. Classification
What are the 4 steps of 2. Characterization
LCIA? 3. Normalization
4. Weighting
, -assignment of emissions to impact categories
according to their potential effects
1. Classification is
- What impact category does an LCI item contribute
to?
-Quantification of contributions to the different
impact categories
2. Characterization is:
-How much does an LCI item contribute to the
impact category?
-Expression of the impact potentials relative to a
reference situation
3. Normalization is
- How much is the characterized results as
compared to a reference?
-assignment of weights to the different impact
potentials
4. Weighting:
-How important each impact category is compared
to others
What is the formula for Impact indicators= inventory data x characterization
characterization? factor (or impact category)
What are examples of Eco-Indicator 99, TRACI
characterization
methods?
What is the formula for Normalization= impact indicator result/reference
normalization: value
For normalization, the country, year
reference will vary by _____
and _____
For weighting, a percentage
normalized results are
always expressed as _____
