Abstract
With the development of industrialization and urbanization, light pollution has become increasingly serious in various countries. Assessing the risk level of light pollution (LPRL) is the foundation and the most important step to study the light pollution problem. In this paper, five primary indicators and 13 secondary indicators are selected, and the indicator weights are determined by EMW and AHP. The light pollution risk levels of different regions are calculated by the Topsis method. The output results show that the LPRL is highest in urban areas, followed by suburban and rural areas, and the LPRL in protected land is lowest, and the model results are consistent with the actual situation. Finally, this paper analyzes the weights of different indicators in the LRPL model, and proposes corresponding intervention policies for the three factors with the highest weights.
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