Fine dust warning lights
Published: 23 Apr. 2019, 19:49
The Galleria department store in Apgujeong-dong, southern Seoul, will change its external lights from green to red when the fine dust level is high, the company said Tuesday. The change will happen when the fine dust concentration in the air surpasses 81 micrograms per cubic meter. [HANWHA GALLERIA]
with the Korea JoongAng Daily
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