The International Journal of Life Cycle Assessment

, Volume 11, Issue 3, pp 150–161

Expanded Damage Function of Stratospheric Ozone Depletion to Cover Major Endpoints Regarding Life Cycle Impact Assessment (12 pp)

Authors

    • Dr. Kentaro Hayashi Water Quality and Solute Dynamics Group Dept. Environmental Chemistry National Institute for Agro-Environmental Sciences 3-1-3 Kannondai, Tsukuba, Ibaraki 305-8604 Japan T: +81-29-838-8327 F: +81-29-838-8199
  • Ai Nakagawa
    • Ai Nakagawa Environmental Department Pacific Consultants Co. Ltd 2-7-1 Nishi-Shinjuku Shinjuku, 163-0730 JAPAN
    • Dr. Norihiro Itsubo Research Scientist National Institute of Advanced Industrial Science and Technology (AIST) Environmental Impact Assessment Team Research Center for Life Cycle Assessment 16-1 Onogawa Tsukuba Ibaraki 305-8569 JAPAN
    • Atsushi INABA, Dr. Director, Research Center for Life Cycle Assessment National Institute of Advanced Industrial Science and Technology (AIST) 16-1 Onogawa, Tsukuba, Ibaraki 305-8569 Japan
Article

DOI: 10.1065/lca2004.11.189

Cite this article as:
Hayashi, K., Nakagawa, A., Itsubo, N. et al. Int J Life Cycle Assessment (2006) 11: 150. doi:10.1065/lca2004.11.189

Abstract

Background

Stratospheric ozone depletion is one of the important environmental issues for LCIA. The National LCA Project of Japan has developed a framework of LCIA since 1998, which tackles the issue employing an endpoint approach. Although the basic components were available in 2000, it was required that the target endpoints should be expanded in particular.

Objective

This study aimed at expanding the scope of damage function of ozone depletion in the LCIA framework of LIME. Damage function gives potential and quantitative damage for each endpoint per unit emission of ODS.

Methods

Marginal damage due to the unit emission of ODS was calculated for 13 substances for which quantitative information was available as follows: (1) the increase of UVB radiation at the earth's surface per unit emission of ODS was estimated, (2) the increase of potential damage per unit increase of UVB radiation was estimated, (3) the increase of potential damage per unit emission of ODS was determined by connecting the two relationships, and (4) correcting by the atmospheric lifetime of ODS, so that the damage function was then obtained. For other ODSs regulated by the Montreal Protocol, their damage functions were estimated by multiplying the ratio of ODP compared to the corresponding reference substance by the damage function of this reference substance.

Results and Discussion

The damage function of ozone depletion included the following endpoints: skin cancer and cataract for human health, crop production and timber production for social assets, and terrestrial NPP and aquatic NPP for primary productivity. And damage factors for each safeguard subject were also obtained.

Conclusion

The damage function of ozone depletion could cover all ODSs regulated by the Montreal Protocol and also cover important endpoints. Uncertainty of damage function is also an important point to be elucidated. Preliminary studies of uncertainty analysis have begun for the damage function of ozone depletion. However, further analysis is required to comprehensively evaluate the uncertainty of the damage function.

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Abbreviations: BCC-Basal Cell Carcinoma; CFC-Chlorofluorocarbon; DALY-Disability Adjusted Life Years; DF-Damage Factor; DI-Damage Indicator; EESC-Equivalent Effective Stratospheric Chlorine; HBFC-Hydrobromofluorocarbon; HCFC-Hydrochlorofluorocarbon; LCA-Life Cycle Assessment; LCIA-Life Cycle Impact Assessment; LIME-Life-cycle Impact assessment Method based on Endpoint modeling; MM-malignant melanoma; NPP-Net Primary Production; ODP-Ozone Depletion Potential; ODS-Ozone Depleting Substance; SCC-Squamous Cell Carcinoma; TCL-Tropospheric Chlorine Loading; UVB-Ultraviolet B; YLD-Years of Life Disabled; YLL-Years of Life Lost.

social assetscataractskin cancerprimary productivityozone depleting substancelife cycle impact assessmenthuman healthdamage functionstratospheric ozone depletionultraviolet B
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© Ecomed 2006