Journal of Environmental Science International (한국환경과학회지)

The Korean Environmental Sciences Society (한국환경과학회)
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Characteristics of Fine Particles during Cold Front Passage in Busan, on March 19, 2020

부산지역 2020년 3월 19일 한랭전선 통과 시 미세먼지 농도 특성

  • Received : 2021.04.30
  • Accepted : 2021.06.07
  • Published : 2021.06.30
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Abstract

This research investigated the characteristics of fine particles during cold front passage in Busan, on March 19, 2020. The cold front speed was 17.4 m/s (about 63k km/hr), moving from the northwest to the southeast, and with a width of about 64 km. The backward trajectory analysis showed that a southern sea air parcel flowed into Busan before the cold front passage, carrying continental materials from China transported into Busan after cold front passage. The PM10 concentration in Busan showed a rapid increase after passing through the cold front, with PM2.5 showing a high concentration during cold front passage. The PM2.5/PM10 ratio was 0.10 - 0.30. When the cold front passed, SO42-, NO3-, Ca2+, NH4+, Na+, and K+ in PM2.5 showed a rapid increase, with SO42- showing the most significant increase. These results indicated that understanding the characteristics of fine particles during cold front passage in Busan could provide insight into establishing a strategy to control urban air quality.

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References

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