"Did you see the blue sky?" Korea covered with fine dust! Korea is suffering from fine dust and yellow dust, which can only be seen in the blue sky if you are lucky. The fine dust, the murderer of silence, how well do we know? In the false story of indiscriminately pouring, only fine dust povia is spreading more and more. You have to know exactly what you can prepare wisely. In , Through the persistent coverage of tracking down to the end and the identification of specific and precise facts, it reveals the hints and threads of fine dust. It is necessary to change the time of looking at fine dust now. We will reveal the complex causes of domestic and foreign countries and suggest specific alternatives.