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鹿児島市の大気汚染調査（第28報） : 2014年度調査報告 Air Pollution in Kagoshima City (Part 28): Investigation from April 2014 to March 2015 本村, 知寛 MOTOMURA, Tomohiro 谷口, 遥菜 TANIGUCHI, Haruna 中島, 常憲 NAKAJIMA, Tsunenori 高梨, 啓和 TAKANASHI, Hirokazu 大木, 章 OHKI, Akira open access air pollution Kagoshima City dust fall NO2 Air pollution in Kagoshima City from April 2014 to March 2015 was investigated with particular emphasis on the dust fall (volcanic ash fall) from Mt. Sakurajima. The dust fall was collected monthly with rainwater at eight locations in Kagoshima City. After the sample had been filtered, the residue was dried and weighed, and the filtrate was analyzed for SO4^2-, Cl^-, and water-soluble matter, as well as for pH. The average monthly dust fall at eight locations in Kagoshima City was 55.8 g・m^-2・month^-1, which was 40% decrease from that observed in the last fiscal year. The concentration of NO2 in the air was measured by use of the "filter-badge method". The average NO2 concentration at the eight locations was 5.8 ppb, which was somewhat lower than that observed in the last fiscal year. 鹿児島大学 Kagoshima University 2015-11 jpn departmental bulletin paper VoR http://hdl.handle.net/10232/25660 https://ir.kagoshima-u.ac.jp/records/6076 0451212X AN00040363 鹿児島大学工学部研究報告 The research reports of the Faculty of Engineering, Kagoshima University 57 15 20 https://ir.kagoshima-u.ac.jp/record/6076/files/AN00040363_v57_p15-20.pdf application/pdf 1.3 MB 2016-10-28 2015-11