Ocular exposure to solar ultraviolet and visible radiation at high latitudes.
在真实几何条件下测量了太阳紫外和短波长蓝光对眼睛的暴露，发现不同环境反射可导致户外工作者面临慢性过度暴露风险，建议修订职业暴露限值时更多考虑慢性影响。
Exposure of the eyes to ultraviolet (UV) radiation and short wavelength light, blue light, from the sun was assessed under realistic geometric conditions. A spectroradiometer with a double monochromator was used to determine the spectral irradiance at 1-nm intervals within the wavelength range of 250-800 nm. Biological weighting functions were used to calculate the blue-light radiance and the weighted UV irradiance. In addition, a photometer with a 1 degree angle of view was used to measure the ambient luminance. The results indicate that sizable amounts of UV radiation and blue light can be reflected from different environmental surroundings. Hence various groups of outdoor workers seem to be at risk of chronic ocular overexposure to solar radiation. When occupational exposure limits for UV and visible radiation are revised, the risks of chronic exposure should receive more consideration than to date.