Fine dust blankets much of South Korea
The southern island of Jeju is shrouded in fine dust, Nov. 20. Yonhap A choking pall of fine dust plagued much of South Korea, Saturday, prompting the authorities to urge vulnerable people to stay indoors. As of noon, the density of ultrafine dust, called PM 2.5, hit the "very bad" level for Seoul and Incheon, and Gyeonggi and South Chungcheong provinces, according to data from the state-run Korea Environment Corp.Other parts of the country, excluding Gwangju and South Jeolla Province in the southwest, registered "bad."The level of fine dust, called PM 10, remained "bad" for Seoul and Gyeonggi Province, and central and northeastern regions, while the reading elsewhere was "average." PM 2.5 and PM 10 refer to particulate matters smaller than 2.5 micrometers and 10 micrometers in diameter, respectively.The nation measures fine dust air pollution in a four-tier system ― "good," "average," "bad" and "very bad."The high concentration is attributable to the combination of
Nov 20, 2021