Targeting the Light Pollution: A Study Case

Light pollution is being studied today from a much wider perspective that goes beyond narrow approaches based on visual comfort and energy saving. After a review of the main ways of assessing the effects of light pollution, based on global measurements or statistical studies, a method based on direct imaging is identified, looking at both the sources of light pollution and its effects. These imagistic measurements have differential character for the target surfaces of light pollution (façades of buildings), to obtain a quantitative estimation of the luminous flux that represents effective light pollution. The method is susceptible to widespread use, and therefore the main stages are presented and discussed in this study-case: Pacific Hotel, Jeju - Korea.