Page 252 - Materials Chemistry, Second Edition

L1644_C06.fm Page 225 Monday, October 20, 2003 12:06 PM

Weighting: general decision tree

environmental loads
local and regional global
yes
via
potentials
global? GWP, ODP,
other global
indicators

damages
estimable
no
yes

Areas of protection
no
natural environment
manmade
environment (biodiversity and natural human health
landscapes)

monetize monetize a) b) c)
with damage with damage morbidity cancer mortality
costs? costs?
no no
yes yes
monetize monetize monetize
$ with abatement $ with abatement with abatement
costs? costs? costs?
no
yes yes yes
no no
building $ CO 2
surface REW
$ destroyed $ [km ] 2
2
[m ], etc.
FIGURE 6.7 General decision tree for weighting.

to the complexity of the weighting options for the human health AoP, another
decision tree has been drawn and is presented in Figure 6.8.
For the manmade environment and natural environment AoPs, the first question
is whether the damage should be monetized in the form of environmental external
costs, e.g., according to the ExternE approach (EC 1995). If decision-makers do not
like this type of weighting, they must decide if they prefer to monetize the impacts
using abatement costs or to express them directly as a physical impact parameter

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