South Korea smothered in Chinese air pollution
SEOUL, Nov. 27 (UPI) -- South Korea issued Tuesday dust advisories in some parts of the country as microdust particles and yellow dust blow in from China. The Korea Meteorological Administration said that the concentration level of fine dust particles, categorized as PM 10, is recorded at 92 micrograms per cubic meter (㎍/㎥) and microfine dust particles (PM 2.5) at 81 ㎍/㎥ in the areas of Incheon on the west coast of the Korean Peninsula closer to China. The microfine dust particle PM 2.5 warning is issued when the level exceeds more than 75 ㎍/㎥ for two hours. The PM 10 fine dust warning is issued when the level surpasses 150 ㎍/㎥ for two hours. PM 2.5 is defined as a particulate matter that measures smaller than 2.5 microns, 2.5 thousa...