The dust, which came from the Great Gobi and Inner Mongolian region of China, affected some areas of the western seaside of Korea, but as of 12:00 of Monday it has been observed not only in the most west coastal areas but in some areas of Jagang, Ryanggang and Kangwon provinces.

Experts say that the dust is of high density.

Citizens are recommended to put on glasses and masks and lavage nasal fossa and pharynx with mild salt water.