CHANGES IN TRANSMISSION CHARACTERISTICS OF POLYMETHYLMETHACRYLATE AND CELLULOSE (III) ACETATE DURING EXPOSURE TO ULTRAVIOLET LIGHT
作者： Steef F. Steeneken , Anita G. J. Buma , Winfried W. C. Gieskes
DOI: 10.1111/J.1751-1097.1995.TB03971.X
关键词:
摘要: Ultraviolet-transparent polymethylmethacrylate (PMMA) and cellulose (III) acetate (CA) (often used as a cut-off filter in UVB [280-320 nm] biological effect studies) were exposed to 20 W Philips TL 12 lamp examine changes transmission characteristics due exposure. Transmission of biologically weighted (UVBBE(DNA)) through PMMA similar, 88.3 83.5%, respectively. The absorption did not change with time at any the UV irradiance levels applied. However, UVBBE(DNA) new CA differed considerably: 59% versus only 11%, Also, spectral changed degradation CA, rate that was dependent on incident irradiance. decrease both can be described by exponential functions. wrapped around showed dramatic over first few hours use. when placed longer distance from light source initial less. It is concluded applied studies reasonable alternative for quartz. should, however, care, because large decreases observed strongly hamper an accurate calculation (biologically weighted) dose rates.
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Paulien Adamse, Steven J. Britz, Spectral quality of two fluorescent UV sources during long-term use Photochemistry and Photobiology. ,vol. 56, pp. 641- 644 ,(1992) , 10.1111/J.1751-1097.1992.TB02215.X
Robert C. Worrest, Deborah L. Brooker, Henry Van Dyke, Results of a primary productivity study as affected by the type of glass in the culture bottles1 Limnology and Oceanography. ,vol. 25, pp. 360- 364 ,(1980) , 10.4319/LO.1980.25.2.0360
J. J. Cullen, P. J. Neale, M. P. Lesser, Biological weighting function for the inhibition of phytoplankton photosynthesis by ultraviolet radiation Science. ,vol. 258, pp. 646- 650 ,(1992) , 10.1126/SCIENCE.258.5082.646
L. W. Jones, B. Kok, Photoinhibition of Chloroplast Reactions. I. Kinetics and Action Spectra Plant Physiology. ,vol. 41, pp. 1037- 1043 ,(1966) , 10.1104/PP.41.6.1037
Robert C. Worrest, Henry Van Dyke, Bruce E. Thomson, IMPACT OF ENHANCED SIMULATED SOLAR ULTRAVIOLET RADIATION UPON A MARINE COMMUNITY Photochemistry and Photobiology. ,vol. 27, pp. 471- 478 ,(1978) , 10.1111/J.1751-1097.1978.TB07631.X
EW Helbling, V Villafane, M Ferrario, O Holm-Hansen, Impact of Natural Ultraviolet-Radiation on Rates of Photosynthesis and on Specific Marine-Phytoplankton Species Marine Ecology Progress Series. ,vol. 80, pp. 89- 100 ,(1992) , 10.3354/MEPS080089
M. M. Caldwell, W. G. Gold, G. Harris, C. W. Ashurst, A MODULATED LAMP SYSTEM FOR SOLAR UV-B (280-320 nm). SUPPLEMENTATION STUDIES IN THE FIELD Photochemistry and Photobiology. ,vol. 37, pp. 479- 485 ,(1983) , 10.1111/J.1751-1097.1983.TB04503.X
R. B. Setlow, The wavelengths in sunlight effective in producing skin cancer: a theoretical analysis. Proceedings of the National Academy of Sciences of the United States of America. ,vol. 71, pp. 3363- 3366 ,(1974) , 10.1073/PNAS.71.9.3363
Åke Strid, W.S. Chow, Jan M. Anderson, Effects of supplementary ultraviolet-B radiation on photosynthesis in Pisum sativum. Biochimica et Biophysica Acta. ,vol. 1020, pp. 260- 268 ,(1990) , 10.1016/0005-2728(90)90156-X
LK Huang, J He, WS Chow, MI Whitecross, JM Anderson, Responses of Detached Rice Leaves (Oryza sativa L.) To Moderate Supplementary Ultraviolet-B Radiation Allow Early Screening for Relative Sensitivity to Ultraviolet-B Irradiation Functional Plant Biology. ,vol. 20, pp. 285- 297 ,(1993) , 10.1071/PP9930285