Risk of Ocular Exposure to Biologically Effective UV Radiation in Different Geographical Directions

Risk of Ocular Exposure to Biologically Effective UV Radiation in Different Geographical Directions
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不同地理方向的眼部暴露于生物有效紫外线辐射的风险

DOI:
10.1111/php.12287
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发表时间:
2014-05
期刊:
Photochem Photobiol
影响因子:
--
通讯作者:
Yang Liu
Yang Liu
中科院分区:
其他
文献类型:
--
作者:
Yanyan Gao;Guangcong Liu;Yang Zheng;Yang Liu

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为了量化眼睛暴露于太阳紫外线辐射(UVR),并评估眼睛损伤的风险,在不同的地理方向,由于UVR暴露,我们使用了光谱仪和假人测量水平环境和眼睛暴露UVR在不同的地理方向在北方半球的四个不同的位置。描述暴露与眼睛损伤风险的关系需要紫外线危害加权函数的可用性。因此,我们使用国际非电离辐射防护委员会提出的紫外线危害加权函数(ICNIRP)来确定生物有效紫外线辐照度(UVBEeye),然后使用累积有效辐射暴露(Heye)来显示眼睛的风险。我们发现在不同的地理方向上,眼暴露量的分布与水平环境UVR的分布有明显的不同。当中午最大海平面大于50°时,眼在早晨和傍晚分别接收到来自东、西两个方向的UVR。当中午最大海平面< 50°时,中午眼接收到的来自南面的UVR较多。研究结果表明,UVR对眼睛造成的高危险性因不同地理方向对应的正午最大海平面而异。
To quantify ocular exposure to solar ultraviolet radiation (UVR) and to assess the risk of eye damage in different geographical directions due to UVR exposure, we used a spectrometer and a manikin to measure horizontal ambient and ocular exposure UVR in different geographical directions at four different locations at the Northern Hemisphere. Describing the relationship of exposure to risk of eye damage requires the availability of UV hazard weighting function. So, we used the UV hazard weighting function (ICNIRP) proposed by International Commission on Non‐Ionizing Radiation Protection to determine the biologically effective UV irradiance (UVBEeye) and then cumulative effective radiant exposure (Heye) to shown the risk of eye. We found that in different geographical directions, distributions of ocular exposure to UVR were markedly different from those of horizontal ambient UVR. When the midday maximum SEA > 50°, eye received more UVR from the east and west directions during the morning and evening hours, respectively. However, when the midday maximum SEA < 50°, eye received more UVR from the south direction at noon. The results of this research indicate that the higher risk of eye caused by UVR varies according to the midday maximum SEA corresponding to different geographical direction.
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