Schulze R, Kasten F
Strahlentherapie. 1975 Aug;150(2):219-26.
Based on measurements of the spectral irradiation intensity of UV-B global radiation by Bener (1960) and on the curve of spectral skin erythema effects newly measured by Urbach and Berger (1972), the biologically active UV-radiation at earth's surface has been calculated as a function of sun's altitude and atmospheric ozone content in so-called "Biological Units": BE = mWh cm-2 times erythema efficacy. On the basis of these data, the total daily, monthly, and yearly amounts of biologically active UV-radiation have been determined for the different geographical latitudes and various ozone contents. Approximately two thirds of BU hit the equatorial zone from 35 degrees south to 35 degrees north. Provided that the stratospheric ozone layer would be reduced by ten per cent from the exhaust gases of supersonic planes flying at high-altitude, an increase of BU would result amounting to 18% at the equator, to 19% in middle latitudes, and to 22% at the poles.
根据贝纳（1960年）对紫外线B全球辐射光谱辐照强度的测量，以及乌尔巴赫和伯杰（1972年）新测量的光谱皮肤红斑效应曲线，已将地球表面具有生物活性的紫外线辐射作为太阳高度和大气臭氧含量的函数，以所谓的“生物单位”进行了计算：生物单位（BE）=毫瓦每平方厘米×红斑效应。基于这些数据，已确定了不同地理纬度和各种臭氧含量下生物活性紫外线辐射的每日、每月和每年总量。大约三分之二的生物单位照射在南纬35度至北纬35度的赤道区域。如果平流层臭氧层因高空飞行的超音速飞机排放的废气而减少10%，生物单位将增加，赤道地区增加18%，中纬度地区增加19%，极地地区增加22%。
