摘要
[目的]了解宁夏银川地区不同下垫面环境中波紫外线辐射强度及其变化规律,为人们适时、适地紫外线防护提供参考。[方法]利用银川地区2005.6～2006.3不同下垫面环境中波紫外线辐射强度监测结果,初步揭示银川地区地面紫外辐射强度的变化规律。[结果]①银川地区紫外辐射具有明显的季节变化特点,夏季﹥春季﹥秋季﹥冬季。②银川地区紫外辐射具有明显的日变化特点,中午高,早、晚低,日最高值出现在午后13时左右。③夏、秋季节城区水泥地面中波紫外线辐射强度略高于郊区农田地面,冬、春季节城区水泥地面紫外辐射强度略低于郊区农田地面,但差异都没有统计学意义。[结论]银川地区不同下垫面中波紫外线辐射强度具有明显的时间变化特点,辐射强度较大,不同下垫面强度差异较小。
[Objective]To learn the intensity of ultraviolet B（UVB）radiation on different underlying grounds in Yinchuan and its change rules,so as to provide reference for people＇s protection against UV damage in appropriate time and place.[Methods]The monitoring data of solar ultraviolet B（UVB）radiation on different underlying grounds in Yinchuan from June,2005 to March,2006 were used to reveal the change rules of surface solar ultraviolet radiation（UVR）in Yinchuan.[Results]①The UVR in Yinchuan showed seasonal changes,the intensity of UVB radiation was the highest in summer,higher in spring,lower in autumn and the lowest in winter.② The UVR in Yinchuan showed daily changes,the intensity of UVB radiation was high on moon and lower in early and later day,the daily top value appeared on 13pm in the afternoon.③ The UVB intensity on cement ground of urban area was a little higher than that on farmland ground in summer and autumn,while in winter and spring,the UVB intensity on cement ground of urban area was a little lower than that on farmland ground,but there were no significant differences between the UVB intensities on two kinds of underlying grounds in different seasons.[Conclusions]The UVB radiation intensity in Yinchuan has obvious characteristics of time variation,the intensity is quite high,but the difference between different underlying grounds is low.
出处
《现代预防医学》
CAS
北大核心
2007年第22期4207-4208,共2页
Modern Preventive Medicine
基金
教育部科学技术研究重点项目(02159)
关键词
中波紫外线
下垫面
监测
Ultraviolet B（UVB）
Underlying ground
Monitoring
