Hostname: page-component-586b7cd67f-rdxmf Total loading time: 0 Render date: 2024-11-22T20:04:10.368Z Has data issue: false hasContentIssue false

Depletion of the ozone layer: consequences for non-infectious human diseases

Published online by Cambridge University Press:  23 August 2011

G. Bentham
Affiliation:
Centre for Social and Economic Research on the Global Environment, UEA/UCL, School of Environmental Sciences, University of East Anglia, Norwich

Summary

Stratospheric ozone depletion threatens to increase exposure to ultraviolet (UV) radiation which is known to be a factor in a number of diseases. There is little doubt that cumulative exposure to UV radiation is important in the aetiology of non-melanoma skin cancers. Evidence is also strong for a link with cutaneous malignant melanoma, although here it appears to be intermittent intense exposure that is most damaging. More controversial is the view that exposure to solar radiation is a significant factor in ocular damage, particularly in the formation of cataracts. Earlier studies pointing to such an effect have been criticized and alternative aetiological hypotheses have been proposed. However, other studies do show an effect of UV exposure on cortical cataract. Concern is also growing that UV may be capable of activating viruses and have immunological effects that might exacerbate infectious disease. Very worrying is the possibility that UV exposure can activate the human immunodeficiency virus which might accelerate the onset of AIDS. Any such health effects that have been observed in human populations are the result of exposure to existing, naturally occurring levels of UV radiation. There is, therefore, great concern about the possible exacerbation of these impacts as a result of increased exposure to UV radiation associated with stratospheric ozone depletion. However, any assessment of the nature and scale of such impacts on human health has to deal with several major problems and these are the focus of this paper. There are uncertainties about recent trends in stratospheric ozone and problems in the prediction of future changes. Following on from this are the difficulties of estimating what effects these changes will have on UV flux at ground level in populated areas. Further problems arise in the prediction of changes in biologically significant doses to humans which might be affected by changes in behaviour as well as by changes in the environment. Finally, the limitations of existing epidemiological knowledge of the effects of UV exposure are a constraint on our ability to predict what the health effects of any changed UV doses might be.

Type
Research Article
Copyright
Copyright © Cambridge University Press 1993

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)

References

REFERENCES

Baadsgaard, O., Wulf, C. H., Wantzin, G. L. & Cooper, K. D. (1987). UV-B and UV-C, but not UV-A potentially induce the appearance of T6-DR + antigen presenting cells in human epidermis. Journal of Investigative Dermatology 89, 113–18.CrossRefGoogle Scholar
British Medical Association (1987). Living with Risk. Chichester: Wiley.Google Scholar
Bruhl, C. & Crutzen, P. J. (1989). On the disproportionate role of tropospheric ozone as a filter against solar UV-B radiation. Geophysical Research Letters 16, 703–6.CrossRefGoogle Scholar
Doll, R. (1991). Progress against cancer: an epidemiologic assessment. American Journal of Epidemiology 134, 675–88.CrossRefGoogle ScholarPubMed
Elwood, J. M. (1987). Natural and artificial ultraviolet radiation. In Cutaneous Melanoma: Status of Knowledge and Future Perspective (ed. Veronesi, U., Cascinelli, N. & Santinami, M.), pp. 325–30. London: Academic Press.Google Scholar
Elwood, J. M. (1989). Epidemiology of melanoma: its relationship to ultraviolet radiation and ozone depletion. In Ozone Depletion: Health and Environmental Consequences (ed. Russell-Jones, R. & Wigley, T.), pp. 169–89. Chichester: Wiley.Google Scholar
Elwood, J. M., Lee, J. A., Walter, S. D., Mo, T. & Green, A. E. S. (1974). Relationship of melanoma and other skin cancer mortality to latitude and ultraviolet radiation in the United States and Canada. International Journal of Epidemiology 3, 325–32.CrossRefGoogle Scholar
Elwood, J. M., Gallagher, R. P., Hill, G. B. & Pearson, J. C. G. (1985). Cutaneous melanoma in relation to intermittent and constant sun exposure - the Western Canada Melanoma Study. International Journal of Cancer 35, 427–33.CrossRefGoogle ScholarPubMed
Farman, J. C., Gardiner, B. G. & Shanklin, J. D. (1985). Large losses of total ozone in Antarctica reveal seasonal ClOx/NOx interaction. Nature 315, 207–10.CrossRefGoogle Scholar
Fears, T. R. & Scotto, J. (1983). Estimating increases in skin cancer morbidity due to increases in ultraviolet radiation exposure. Cancer Investigations 1, 119–26.Google ScholarPubMed
Glass, A. G. & Hoover, R. N. (1989). The emerging epidemic of melanoma and squamous cell skin cancer. Journal of the American Medical Association 262, 2097–100.CrossRefGoogle ScholarPubMed
Green, A. E. S., Sawada, T. & Shettle, E. P. (1974). The middle ultraviolet reaching the ground. Photochemistry and Photobiology 19, 251–9.CrossRefGoogle Scholar
Hader, D. P., Worrest, R. C. & Kumar, H. D. (1991). Aquatic ecosystems. In Environmental Effects of Ozone Depletion: 1991 Update (United Nations Environment Programme), pp. 3340. Nairobi: UNEP.Google Scholar
Harding, J. (1991). Cataract: Biochemistry, Epidemiology and Pharmacology. London: Chapman & Hall.Google Scholar
Hiller, R., Sperduto, R. D. & Ederer, F. (1983). Epidemiologic associations with cataract in the 1971-72 National Health and Nutrition Examination Survey. American Journal of Epidemiology 118, 239–49.CrossRefGoogle Scholar
Hollows, F. & Moran, D. (1981). Cataract - the ultraviolet risk factor. Lancet 2, 1249–50.CrossRefGoogle ScholarPubMed
Houghton, J. T., Jenkins, G. J. & Ephraums, J. J. (1990). Climate Change: the IPCC Scientific Assessment. Cambridge: Cambridge University Press.Google Scholar
Leaf, A. (1989). Potential health effects of global climatic and environmental changes. The New England Journal of Medicine 321, 1577–83.CrossRefGoogle ScholarPubMed
Lippmann, M. (1989). Health effects of ozone: a critical review. Journal of the Air Pollution Control Association 39, 672–95.Google ScholarPubMed
Longstreth, J. D., De Gruijl, F. R., Takizawa, Y. & Van Der Leun, J. C. (1991). Human health. In Environmental Effects of Ozone Depletion: 1991 Update (United Nations Environment Programme), pp. 1524. Nairobi: UNEP.Google Scholar
Madronich, S. (1992). Implications of recent total atmospheric ozone measurements for biologically active ultraviolet radiation reaching the Earth's surface. Geophysical Research Letters 19, 3740.CrossRefGoogle Scholar
Magnus, K. (1987). Epidemiology of malignant melanoma of the skin. In Cutaneous Melanoma: Status of Knowledge and Future Perspective (ed. Veronesi, U., Cascinelli, N. & Santinami, M.), pp. 113. London: Academic Press.Google Scholar
Penkett, S. A. (1988). Indications and causes of ozone increase in the troposphere. In The Changing Atmosphere (ed. Rowland, F. S. & Isaksen, I. S. A.), pp. 91103. Chichester: Wiley.Google Scholar
Penkett, S. (1989). Ultraviolet levels down not up. Nature 341, 283–4.CrossRefGoogle Scholar
Rampen, F. H. J. & Fleuren, E. (1987). Melanoma of the skin is not caused by ultraviolet radiation but by a chemical xenobiotic. Medical Hypotheses 22, 341–6.CrossRefGoogle Scholar
Rooney, J. F., Bryson, Y., Mannix, M. L., Dillon, M., Wohlenberg, C. R., Banks, S., Wallington, C. J., Notkins, A. L. & Straus, s. E. (1991). Prevention of ultraviolet light induced herpes labialis by sunscreen. Lancet 338, 1419–22.CrossRefGoogle ScholarPubMed
Russell-Jones, R. (1989). Consequences for human health of stratospheric ozone depletion. In Ozone Depletion: Health and Environmental Consequences (ed. Russell-Jones, R. & Wigley, T.), pp. 206–27. Chichester: Wiley.Google Scholar
Scotto, J., Cotton, G., Urbach, F., Berger, D. & Fears, T. (1988,). Biologically effective ultraviolet radiation: surface measurements in the United States, 1974 to 1985. Science 239, 762–4.CrossRefGoogle ScholarPubMed
Scotto, J. & Fears, T. R. (1987). The association of solar ultraviolet and skin melanoma incidence among Caucasians in the United States. Cancer Investigations 5, 275–83.CrossRefGoogle ScholarPubMed
Scotto, j., Pitcher, H. & Lee, J. A. H. (1991). Indications of future decreasing trends in skin-melanoma mortality among whites in the United States. International Journal of Cancer 49, 490–7.CrossRefGoogle ScholarPubMed
Seckmeyer, G. & Mckenzie, R. L. (1992). Increased ultraviolet radiation in New Zealand (45 degrees S) relative to Germany (48 degrees N). Nature 359, 135–7.CrossRefGoogle Scholar
Setlow, R. B. (1974). The wavelengths in sunlight effective in producing skin cancer: a theoretical analysis. Proceedings of the National Academy of Sciences, USA 71, 3363–6.CrossRefGoogle ScholarPubMed
Stolarski, R., Bojkov, R., Bishop, L., Ze, C., Staehelin, J. & Zawodny, J. (1992). Measured trends in stratospheric ozone. Science 256, 342–9.CrossRefGoogle ScholarPubMed
Taylor, H. R., West, S. K., Rosenthal, F. S., Munoz, B., Newland, H. S., Abbey, H. & Emmett, E. A. (1988). Effect of ultraviolet radiation on cataract formation. The New England Journal of Medicine 319, 1429–33.CrossRefGoogle ScholarPubMed
Teramura, A. H., Tevini, M., Bornman, J. F., Caldwell, M. M., Kulandaivelu, G. & Bjorn, L. O. (1991). Terrestrial plants. In Environmental Effects of Ozone Depletion: 1991 Update (United Nations Environment Programme), pp. 2532. Nairobi: UNEP.Google Scholar
Tomatis, L. (1990). Cancer: Causes, Occurrences and Controls. Lyon: International Agency for Research on Cancer.Google Scholar
Uk Department Of The Environment (1991). The Ozone Layer. London: Department of the Environment.Google Scholar
Uk Stratospheric Ozone Review Group (1987). Stratospheric Ozone. London: HMSO.Google Scholar
Uk Stratospheric Ozone Review Group (1990). Stratospheric Ozone 1990. London: HMSO.Google Scholar
Uk Stratospheric Ozone Review Group (1991). Stratospheric Ozone 1991. London: HMSO.Google Scholar
United Nations Environment Programme (1989). Environmental Effects Panel Report. Nairobi: UNEP.Google Scholar
United Nations Environment Programme (1991). Environmental Effects of Ozone Depletion: 1991 Update. Nairobi: UNEP.Google Scholar
Us Environmental Protection Agency (1987). Assessing the Risk of Trace Gases that Can Modify the Atmosphere. Washington, DC: Environmental Protection Agency.Google Scholar
Valerie, K., Delers, A., Bruck, C., Thiriart, C., Rosenberg, H., Debouk, C. & Rosenberg, M. (1988). Activation of human immunodeficiency virus type 1 by DNA damage in human cells. Nature 333, 7881.CrossRefGoogle ScholarPubMed
Zmudzka, B. Z. & Beer, J. Z. (1990). Activation of human immunodeficiency virus by ultraviolet radiation. Photochemistry and Photobiology 52, 1153–62.CrossRefGoogle ScholarPubMed