Development of damage function for stratospheric ozone layer depletion

A tool towards the improvement of the quality of life cycle impact assessment
Methodology Development

Abstract

The purpose of our study was to develop damage functions due to ozone layer depletion, that related the emission of ozone depleting substances (ODS) to the damage of category endpoints. The ozone layer depletion causes many types of damage such as skin cancer, cataract, adverse effect to crop and plant growth. We assessed the increase of skin cancer incidence risk. The damage function have been developed with connecting the main processes on ozone depletion, emission of ODS, increase of tropospheric ODS, increase of stratospheric ODS, change of total ozone, change of B region ultra-violet (UV-B) at the surface, and the increase of skin cancer incidence. As the result, we could introduce damage functions of melanoma and non-melanoma skin cancer incidence for 13 species of ODSs and damage factors based on the disability-adjusted life years (DALYs). We also compared the DALYs value with the damage factors of Eco-indicator 99 (egalitarian and hierarchic value), and it was found that our result was several ten times as small except methyl bromide. Furthermore, a case study for refrigerator was performed and it showed that shifting to less ozone depleting substances reduced the risk of skin cancer incidence to one-fourteenth in DALYs.

Keywords

B region ultra violet damage function disability-adjusted life years LCIA life cycle impact assessment non-melanoma skin cancer ozone depleting substance ozone depletion skin cancer melanoma 

Abbreviations

ODSs

Ozone Depleting Substances

CFCs

Chlorofluorocarbons

DALYs

Disability-adjusted Life Years

HCFCs

Hydrochlorofluorocarbons

ODP

Ozone Depletion Potential

TCL

Tropospheric Chlorine Loading

EESC

Equivalent Effective Stratospheric Chlorine

UV

B-B Region Ultra violet

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Copyright information

© Ecomed Publishers 2000

Authors and Affiliations

  • Kentaro Hayashi
    • 1
  • Norihiro Itsubo
    • 2
  • Atsushi Inaba
    • 3
  1. 1.Pacific Consultants Co.ltd.Shinjuku-ku, TokyoJapan
  2. 2.Japan Environment Management Association for Industry (JEMAI)Taito-ku, TokyoJapan
  3. 3.National Institute for Resources and Environment (NIRE), AIST, MITITsukubaJapan

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