Page 264 - Materials Chemistry, Second Edition

L1644_C06.fm Page 237 Monday, October 20, 2003 12:06 PM

4. Dominance analysis
predominant media, processes and pollutants will be assessed
site-specific process and/or region specified by literature
site-dependent

5. Fate and exposure assessment and consequence analysis

site known? no

yes

divide data
of emissions into upstream Apply
weighting scheme
local
refine
data
weighting
available?
options and
kind of region size
emission?
one-time
continuous yes
(accidents)
site-specific site-specific transfer of site- process- region- uniform
factors factors site-specific dependent specific dependent world
factors factors factors factors factors
e.g., e.g., e.g., e.g., e.g., e.g., e.g.,
incineration explosion
Tarragona transport electricity Sparti Diesel

physical impact parameters

apply selected weighting and
intermediate aggregation scheme

damage-assigning matrices

FIGURE 6.14 Fate and exposure assessment and consequence analysis.

indicators or environmental costs by applying the selected weighting scheme. More-
over, if laid out in the goal and scope definition, the intermediate aggregation can
take place.
For processes in which literature values should be used, the first action is to
check if the desired data are available in the literature. If this is not the case, the
weighting options of the scope definition and/or the size of the region must be

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