地面水背景下眼部紫外线暴露强度分析  

Ocular solar UV exposure intensity above natural water in Shenyang city

作　　者：马芳芳 陈仁彤 王楠 李欣[1] 华慧[1] 黄丽婷 李孟林 邹真真 王安琪 刘扬[1] MA Fang-fang;CHEN Ren-tong;WANG Nan(School of Public Health,China Medical University,Shenyang,Liaoning Province 110122,China)

机构地区：[1]中国医科大学公共卫生学院,辽宁沈阳110122

出　　处：《中国公共卫生》2018年第12期1658-1661,共4页Chinese Journal of Public Health

基　　金：国家自然科学基金(81673133)

摘　　要：目的探讨水面反射对眼部紫外线暴露量的影响,为眼部紫外线防护提供依据。方法采用自制旋转式眼部紫外线暴露模型于2017年8月期间在辽宁省沈阳地区某公园的水面和木板两种不同地面背景,同时进行眼部紫外线暴露强度监测。结果无论紫外线A段(UVA)还是紫外线B段(UVB)其眼部暴露强度均为地面水背景下高于木板背景。水面、木板背景下眼部UVA暴露最大值日间变化均呈双峰分布,2者峰值相差479μW/cm2(上午)、526μW/cm2(下午);眼部UVB暴露最大值的日间变化双峰不明显,水面、木板背景下眼部UVB暴露最大值的峰值差值为14μW/cm2。不同方位眼部紫外线暴露强度多数为地面水背景高于木板背景。结论地面水背景下的眼部紫外线暴露强度高于木板背景下的眼部紫外线暴露强度。Objective To investigate the effect of water surface reflection on ocular solar ultraviolet(UV)exposure and to provide a basis for UV protection of eye.Methods We measured ocular solar UV exposure intensity above natural water surface and ground surface with wood board pavement simultaneously in a park of Shenyang city in August 2017. A self-made rotating model for simulation of ocular UV exposure was used in the study.Results The ocular exposure intensity of both ultraviolet A(UVA)and ultraviolet B(UVB)above natural water surface were higher than those above the ground surface with wood board pavement. Bimodal distribution in daily variation of the maximum ocular UVA intensity was observed for exposures above natural water and ground surface, with the differences in maximum intensity of 479 μW/cm2(in the morning)and 526 μW/cm2(in the afternoon)between exposures above the natural water surface and the ground surface. No obvious bimodal distribution in daily variation of the maximum ocular UVB intensity was observed and the difference in the maximum ocular UVB exposure intensity was 14 μW/cm2 between exposures above the natural water surface and the ground surface, with generally higher UV expore of various directions above the natural water suiface than above grounal surface.Conclusion The ocular solar UV exposure intensity is higher above natural water surface than above ground surface with wood board pavement in Shenyang city.

关 键 词：水面 反射 眼部 紫外线暴露 

分 类 号：R779.1[医药卫生—眼科]