Namsan Tower Lights

    Everyday, when the sun sets, the Namsan Tower always lights up in a certain color. These colors may vary from yellow, green, red, etc. However, did you ever stop to wonder what these colors meant?

    These wide array of colors all actually represent the air quality or dust level in the air. Depending on the amount of dust that day, the color of the tower will change. When the tower gives off a blue light, it signifies that the dust level in the air is very low. Usually, the dust level goes from 0-30 micrograms. Next, when the dust level is between 31 and 80 micrograms, the tower tends to illuminate in a greenish color. This means that the air quality for the day is average. An average air quality can sometimes come in colors of yellow and purple as well. Lastly, when the tower is red, it is giving a sign that the air quality is horrendous. This happens when the dust level exceeds 120 micrograms. The colors not only adds a cool feature to the beautiful tower, but it can also be utilized to inform people about the air quality. So when the tower is red, it would probably be best not to step outside. 

 

By: Justin Chung