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目的 了解秋季沈阳市小学生个体紫外线暴露情况。方法 在秋分前后采用紫外线个体监测仪监测 30名小学生累计 1周的暴露值 ,同时记录户外活动时间。结果 小学生紫外线暴露量日间分布基本对应于户外活动时间 ,r=0 .833。上学日暴露量占 1周的79.7% ,休息日暴露量日间分布没有明显集中趋势 ,体育课的暴露不容忽视 ,中午占全天的 32 .0 %。紫外线暴露量个体间差异很大。小学生日暴露量只占同时环境剂量很小部分 ,各时段暴露量占同时环境剂量的百分比在 1.16 %～ 5.0 6 %间。结论 小学生紫外线暴露量日间分布基本对应于户外活动时间 ,其个体间差异主要是个体行为因素所致
Objective To understand the individual UV exposure of pupils in Shenyang in autumn. Methods Before and after the autumnal equinox, UV exposure was used to monitor the cumulative exposure of 30 primary school students for one week and record the outdoor activity time. Results The daytime UV exposure of primary school students corresponded basically to the time of outdoor activities, r = 0.838. The school-day exposure accounted for 79.7% of the first week, and there was no obvious concentration tendency during the daytime. The exposure of physical education class should not be neglected. At noon accounted for 32.0% of the whole day. UV exposure vary widely among individuals. The daily exposure of primary school students accounted for only a small part of the environmental dose at the same time, and the percentage of environmental exposure at the same time ranged from 1.16% to 5.06%. Conclusions The pupils’ daily distribution of UV exposure basically corresponds to the time of outdoor activities, and the differences among them are mainly caused by individual behavioral factors