2026-03-11T22:57:25Z https://ir.kagoshima-u.ac.jp/oai

oai:ir.kagoshima-u.ac.jp:00010330 2026-03-03T08:44:35Z 228:273:5370 35:36

鹿児島市の大気汚染調査(第21報)平成19 年度調査報告 Air Pollution in Kagoshima City (Part 21) Investigation from April 2007 to March 2008 長谷川, 博之 HASEGAWA, Hiroyuki 井手原, 広季 IDEHARA, Hiroki 大山, 謙二 OHYAMA, Kenji 中島, 常憲 NAKAJIMA, Tsunenori 髙梨, 啓和 TAKANASHI, Hirokazu 大木, 章 OHKI, Akira 500 air pollution Kagoshima City falling dust NO_2 Air pollution in Kagoshima City from April 2007 to March 2008 was investigated with particular emphasis on the falling dust (volcanic ash fall) from Mt. Sakurajima. The falling dust 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 SO_4＾< 2->, Cl＾-, and water-soluble matter, as well as for pH. The average monthly falling dust at the eight locations in Kagoshima City was 6.3 g・m＾<-2>・month＾<-1>, which was about the same as that observed in the last fiscal year. The tendency of low falling dust has continued since 2001. The concentration of NO_2 in the air was measured by use of the "filter-badge method". The average NO_2 concentration at the eight locations was 7.7 ppb, which was ca. 20% lower than those for the recent years. departmental bulletin paper 鹿児島大学 Kagoshima University 2008-10 VoR application/pdf 鹿児島大学工学部研究報告 50 1 6 The research reports of the Faculty of Engineering, Kagoshima University 0451212X AN00040363 https://ir.kagoshima-u.ac.jp/record/10330/files/AN00040363_v50_p1-6.pdf http://hdl.handle.net/10232/8217 https://ir.kagoshima-u.ac.jp/records/10330 jpn open access