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http://dx.doi.org/10.5322/JESI.2022.31.12.1069

Meteorological Parameters and Fine Particle Concentration during Two Successive Cold Fronts in Busan on 1~2 February 2021  

Byung-Il Jeon (Department of Air Traffic & Operation Management, Silla University)
Publication Information
Journal of Environmental Science International / v.31, no.12, 2022 , pp. 1069-1078 More about this Journal
Abstract
This study investigated the weather conditions, fine particle concentration, and ion components in PM2.5 when two cold fronts passed through Busan in succession on February 1 and 2, 2021. A analysis of the surface weather chart, AWS, and backward trajectory revealed that the first cold front passed through the Busan at 0900 LST on February 1, 2021, with the second cold front arriving at 0100 LST on February 2, 2021. According to the PM10 concentration of the KMA, the timing of the cold front passage had a close relationship with the occurrence of the highest concentration of fine particles. The transport time of the cold front from Baengnyeongdo to Mt. Gudeok was approximately 11 hours . The PM10 and PM2.5 concentrations in Busan started to increase after the first cold front had passed, and the maximum concentration occurred two hours after the second cold front passed. The SO42-, NO3-, and NH4+ concentration in PM2.5 started to increase from 1100 to 1200 LST on February 1, after the first cold front passed, and peaked at 0100 LST to 0300 LST on February 2. However, the highest Ca2+ concentration was recorded 2-3 hours after the second cold front had passed.
Keywords
Cold front; $PM_{10}$ and $PM_{2.5}$ concentrations; Ion component;
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