[A-AS11] Atmospheric Chemistry

[AAS11-P14] High Concentration PM10 occurring during the Period of Influence of Typhoon

*Woo-Sik Jung¹ (1.Department of Atmospheric Environment Information Engineering, INJE University.)

Keywords:Typhoon, PM10, High concentration

From a general point of view, there is a strong cognitive tendency that the concentration of pollutants in the atmosphere will be lowered, and relatively clean air quality will be exhibited due to the diffusion from strong winds and cleaning effects from torrential rains accompanied by typhoons. However, even during the typhoon impact period, a high concentration of PM10 frequently occurs. Therefore, we developed the Typhoon Ready System (TRS), which can analyze and diagnose not only extreme weather phenomena, but also high concentrations of air pollution during the typhoon impact period. This study conducted a data analysis on the high concentration PM10 phenomenon in seven large cities during the typhoon period affecting the Korean Peninsula. Various studies were also conducted to assess the future risk of typhoons in the atmospheric environment.
The purpose of this study is to examine how subjective the general perception, "the concentration of air pollutants during the typhoon-affected period will decrease and air quality will improve", can be in terms of the actual atmospheric environment. The results confirmed the validity of this concept in terms of the current situation through a PM10 data analysis of air quality measurement networks installed in seven large cities across the country. This study provides a very valuable, basic data for typhoon disasters, and is also important for the air quality assessment of the TRS.

This work was supported by the National Research Foundation of Korea(NRF) grant funded by the Korea government(MSIT) (No. 2020R1F1A1068738)