It should be interesting to see what comes out of this study from NASA where they are trying to determine how much of the pollution over Seoul is produced domestically compared to what blows in from China:
The cockpit warning blared insistently as the plane spiraled downward to 500 feet above Seoul: “Too low, too low, terrain. Pull up, pull up, pull up.”
The pilots ignored the automated voice despite a nervous glance from a visiting reporter. Their mission was to take the DC-8 as low or as high as the NASA scientists working in the back required.
The flight was part of a six-week joint Korea-U.S. air-quality field study — known as KORUS-AQ — which officially kicked off on April 29. The timing coincided with the so-called yellow dust season that sees fine particulate matter swept into the air from neighboring China’s Gobi Desert. [Stars & Stripes]
You can read more at the above link as well as more about Korea’s yellow dust problem at this link.








