![](/assets/artwork/1x1-42817eea7ade52607a760cbee00d1495.gif)
1 episode
![](/assets/artwork/1x1-42817eea7ade52607a760cbee00d1495.gif)
Youjin Lee LEE Youjin
-
- Education
Environmental pollution in Korea
-
South Korea's air pollution
Most of the air pollution in Korea is transportation.
1 episode
Environmental pollution in Korea
South Korea's air pollution
Most of the air pollution in Korea is transportation.