[A-AS07] 大気化学

[AAS07-P02] 2022年1月に昭和基地で観測された大気中水銀濃度の変動

*中澤 暦¹、永淵 修²、伊村 智³、渡辺 朋亮⁴、三ツ井 亮洸⁴ (1.富山県立大学、2.福岡工業大学、3.国立極地研究所、4.日本インスツルメンツ株式会社)

キーワード：南極、大気中水銀、昭和基地

In order to clarify the dynamics of atmospheric mercury concentration in Antarctica, we have installed the atmospheric mercury monitor (AM-5, Nippon Instruments, Co. Ltd) to the Syowa station during January to early February, 2022. Syowa station is located at coastal area. The average concentration of Hg (0) were 1.01±0.21 ng/m³ during our observation period. Highest concentration (1.99 ng/m³) were observed when the low presser system approaches to the Syowa station.
The atmospheric mercury concentration increases during the noon and decreased at night time. In this presentation, we will discuss the fluctuation factor of atmospheric mercury in this period.