Day of bad air

An employee points to a screen showing a map of South Korea that indicates the atmospheric level of PM2.5, harmful particles smaller than 2.5 microns in diameter, nationwide at the Gyeonggi provincial government's building in Suwon, south of Seoul, on Feb. 6, 2023, as the government invoked emergency measures against fine dust, which was forecast to be "bad" for the capital and its surrounding areas. (Yonhap)

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