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Characterisation Method Information
Characterisation Method Name:
PAC impact on severe morbidity
Version:
1999
Date Completed:
1999
Principal Method Name:
EPS: cancer pathway
Method Description:
Model

The characterisation factor is determined by the empirical method.

Category indicator value in system considered

The portion of cancer incidences not causing death (36%) is classified as severe morbidity. The average length of the morbidity is not known at present, but is assumed to be 5 years. This means that the total indicator value in the environmental system is (5/10)*(0.36/0.64)* 8.52E+06 = 2.40E+06 person-years of severe morbidity, where 8.52E+06 was the indicator value determined in "Arsenic air emissions impact on YOLL".

Contribution to category indicators value from a flow unit

The same contribution as in "PAC impact on YOLL" is valid, i.e. 6.67E-08 per kg PAC.

Calculation of characterisation factor

This would mean that the characterisation factor would be 2.40E+06 * 6.67E-08 = 0.160
person-years/kg PAC.
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:
The system is global and the year is 1990. Most of the exposure occurs in urban areas why the characterisation modelling is focused on urban areas.
Notes:
PAC PolyAromatic Compounds.

Existing Characterisation Factors of PAC impact on severe morbidity
Characterisation Parameter Category Indicator Impact Indication Principle Aspect Substance Quantity Unit Notes
CFactor Severe morbidity EPS/2000
Type = Emission
Direction = Output
Media = Air
Geography = *
PAC 0.160 p yr/kg cancer pathway