Super yellow dust storm sweeps across Korea, worst air pollution this year

An extremely strong yellow sandstorm from northern China and Mongolia swept across South Korea on 29 June, forcing authorities to issue an alert for Seoul and nearly all parts of the country, Yonhap news agency reported.

Authorities said suspended particulate matter (PM10) concentrations less than 10 microns in diameter rose to a “very poor” level in the greater Seoul area and other areas.

After 10 a.m. local Time, the hourly average PM10 concentration in Daegu, 300 kilometers from Seoul, reached 1,115 micrograms per cubic meter, and even 1,348 micrograms per cubic meter in some parts of Daegu, far exceeding the “very poor” standard (151 micrograms per cubic meter), making it the worst day of air pollution so far this year. It was the worst air pollution day so far this year.