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Characterisation Method Information
Characterisation Method Name:
Propylene impact on morbidity
Date Completed:
Principal Method Name:
EPS: global warming pathway
Method Description:

The characterisation factor is determined by an equivalency method using CO2 as a reference.

Equivalency factor

The GWP100 (global warming potential over 100 years) was estimated by IPCC (Intergovernmental Panel on Climate Change) to 11 in one of the early reports. (1990). Later this
statement was withdrawn by IPCC, with the motivation that the uncertainty was too
large. In the EPS context however, omitting it would create a larger error than including
it, so the equivalency factor 11 will still be used.

Calculation of characterisation factor

The characterisation factor of CO2 for morbidity is determined to 6.55E07 person-years/kg, which means that the characterisation factor of propylene for morbidity is 11*6.55E07 = 7.21E06 person-years/kg.
Literature Reference:
Steen B (1999b): A systematic approach to environmental priority strategies in product development (EPS). Version 2000 Models and data of the default method CPM report Chalmers University of Technology Sweden
Methodological Range:
Including emissions from anywhere at the globe 1990 and considering a residence time of several days for propylene and its reaction products, the environmental system will also be global. For the global warming pathways, the same system borders as for CO2 is relevant, i.e. 100 years.

Existing Characterisation Factors of Propylene impact on morbidity
Characterisation Parameter Category Indicator Impact Indication Principle Aspect Substance Quantity Unit Notes
CFactor Morbidity EPS/2000
Type = Emission
Direction = Output
Media = Air
Geography = *
Propylene 7.21E-06 p yr/kg global warming pathway