To estimate the risk of enhanced UV-B radiation due to stratospheric ozone depletion, phage T7 and uracil thin-layer biological dosimeters have been developed, which weight the UV irradiance according to induced DNA damage. To study the molecular basis of the biological effects observed after UV irr
Biological UV dosimeters in the assessment of the biological hazard from environmental radiation
✍ Scribed by A. Bérces; A. Fekete; S. Gáspár; P. Gróf; P. Rettberg; G. Horneck; Gy Rontó
- Publisher
- Elsevier Science
- Year
- 1999
- Tongue
- English
- Weight
- 271 KB
- Volume
- 53
- Category
- Article
- ISSN
- 1011-1344
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✦ Synopsis
To determine the impact of environmental UV radiation, biological dosimeters that weight directly the incident UV components of sunlight have been developed, improved and evaluated in the frame of the BIODOS project. Four DNA-based biological dosimeters ((i) phage T7, (ii) uracil thin layer, (iii) spore dosimeter and (iv) DLR-biofilm) have been assessed from the viewpoint of their biological relevance, spectral response and quantification of their biological effectiveness. The biological dosimeters have been validated by comparing their readings with weighted spectroradiometer data, by comparison with other biological doses, as well as with the determined amounts of DNA UV photoproducts. The data presented here demonstrate that the biological dosimeters are potentially reliable field dosimeters for measuring the integrated biologically effective irradiance for DNA damage.
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