|Characterisation Method Name:|
|N2O impact on morbidity|
|Principal Method Name:|
|EPS: global warming pathway and NOx-tranformation pathway|
|Model 1, global warming pathway|
The characterisation factor is determined by an equivalency method using CO2 as a reference.
The global warming potential for N2O on a 100 years basis is 320 (IPCC 1995).
The characterisation factor of CO2 for morbidity is determined in "CO2 impact on morbidity" to 6.55E–07 person-years/kg CO2. Therefore the characterisation factor of N2O for severe morbidity is 320*6.55E–07 = 2.10E–04 person-years /kg N2O.
Model 2, NOx-tranformation pathway
The characterisation factor is determined by an equivalency method using NOx as a reference.
In "N2O impact on YOLL", the equivalency factor was determined to 1.35 kg NOx (NO2).
The characterisation factor of NOx for morbidity is determined in "NOx impact on morbidity" to 3.61×10 -6 person-years/kg NOx. Therefore the characterisation factor of N2O for morbidity is 1.35*3.61E-06 = 4.87E–06 person-years /kg N2O.
Calculation of characterisation factor
The total characterisation factor is thus 2.10E–04 + 4.87E–06 = 2.14E–04 person-years /kg N2O.
|Houghton, J.T Jenkins, G.J. and Ephraums, J.J., (Ed.) (1990) Climate change – The IPCC scientific assessment. Cambridge University Press|
|The impact is of global character. The modelled system is therefore global. The temporal system borders are 100 years (1990-2090). The society effected is the one described in IPCC (Intergovernmental Panel on Climate Change)scenario IS92A. (IPCC, 1990).|
|Characterisation Parameter||Category Indicator||Impact Indication Principle||Aspect||Substance||Quantity||Unit||Notes|
|N2O||2.14E-04||p yr/kg||2 pathways|