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English

On May 15, it was a very clear and sunny day without fine dust all day long. It was because there had been a strong northwester of 5 m/s blowing and it had scattered away ultra-fine particles on the previous day.

Korean

2017년 5월 15일 교회 행사가 있던 날, 당시는 연일 심각한 수준의 미세먼지와 황사로 인해 공기오염이 아주 심각한 상황이었다.