[Graphic News] S. Korea fine dust at worst level this year
Social affairsApr 10, 2017
South Korea has experienced more days of ultrafine dust blanketing the country so far this year compared to the past two years, government data showed. According to the Ministry of Environment, the concentration level of ultrafine dust particles -- about 1/30 the thickness of a strand of human hair -- from January to March this year marked the worst level at 32 micrograms per cubic meter, up 2 micrograms per cubic meter from the same period in 2015 and 2016. That level is equal to an AQI of 93 o