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本文测定了辽宁地区太阳辐射中紫外线A段(UV-A),B段(UV-B)强度的日分布和季节变化,实测了儿童腹部皮肤最小红斑剂(MED)所需UV-B剂量为236.64mJ/cm~2。据此推算出该地区MED的时间分布。并用二次曲线拟合求得时间(h)-紫外线强度(μw/cm~2)的抛物线方程。
The daily and seasonal variations of UV-A and UV-B intensities in solar radiation of Liaoning Province were measured in this paper. The minimum UV-B dose required for MED of children’s skin was measured as 236.64mJ / cm ~ 2. Based on this, we can calculate the time distribution of MED in this area. The parabolic equation of time (h) - UV intensity (μw / cm ~ 2) was obtained by quadratic curve fitting.