Modelling the health related benefits of environmental policies - a CGE analysis for the eu countries with gem-e3



APPENDIX

A.1. Computation of the health related damage

To illustrate how the health related damages in Table 1 are derived, we look at the case
of ozone (O
3). From the ExternE study we know that the dose-response functions for O3
are as follows:

Table A.1: Dose-response relationship for tropospheric ozone

Impact category

Receptor

Exposure-
response slopea

Acute mortality________________

Entire population________________

________0.059%

Morbidity

- Respiratory hospital
admissions

- Minor restricted activity days

- Asthma attacks

- Symptom days_____________

Entire population

Adults (80% of population)

Asthmatics (3.5% of population)

Entire population________________

3.54 10-6

9.76 10-3

4.29 10-3

___________0.033

Source: ExternE (1996, 1998, 2000)

a The exposure response slope has units of cases∕(year-person-μg∕m3) except for mortality which
is expressed as percentage increase per μg∕m3.

The dose-response functions are converted into cases/(year-person-6h ppb) by
multiplying them by 2. The dose-response functions for morbidity are then all expressed
in cases/(year-1000persons-6h ppb) for the entire population taking into account the
receptor share in total population. The dose-response function for acute mortality is
expressed in the same units by using the assumption that the baseline mortality rate is
0.99%. The resulting exposure-response slopes are combined with the damage values
from ExternE in order to obtain the total health related marginal damage per person.

Table A.2: Derivation of the health related marginal damage - O3 concentrations

Impact category

Exposure-response
slope (cases∕(year-
1000persons-
6hppb))

Damage
(ECU/case)

Marginal damage
of O3 pollution
(ECU∕(year-
person-6h ppb)

Acute mortality_______

_______________0.01

73500

______________0.86

Morbidity

- Respiratory hospital
admissions

0.01

1600

3.05

0.01

- Minor restricted

15.62

37.1

0.58

activity days

- Asthma attacks

0.30

33.5

0.01

- Symptom days______

____________66

_______________37.1

______________2.45

Total health related

damage____________

3.91

Source: own calculations

based on ExternE (1995-2000)



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