著者

岩坂 泰信 小林 史尚 皆巳 幸也

出版者

日本エアロゾル学会

雑誌

エアロゾル研究 (ISSN:09122834)

巻号頁・発行日

vol.25, no.1, pp.4-12, 2010-03-20 (Released:2010-03-25)

参考文献数

24

被引用文献数

3

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There has been interest in bioaerosols that have been linked to health hazards for humans, animals, and plants. Additionally, recently possible contributions of bioaerosols to atmospheric processes become a large concern from the view point of interaction between climate-weather and bioaerosol, especially the potential of micro organisms as ice nuclei. However knowledge on atmospheric bioaerosols is extremely poor due to the technical difficulty in measurement of bioaerosols in the atmosphere. Recently some investigators tried to collect atmospheric bioaerosols on high mountains and/or high tower to understand the transport processes, the environmental stress on micro biota in the atmosphere, the concentration and diversity of micro organisms in the atmosphere. Now the science of bioaerosols is world-widely accepted as large break-through in atmospheric science, aerosol science, environmental science, and others. The concentrations and diversity of bioaerosols in the atmosphere and the changes in their temporal-spatial are essential knowledge to clarify the long range transport of bioaerosols and the atmospheric processes affected by bioaerosols, and the environmental effects of micro organisms transported in long range. Balloon borne measurements were actively made in Kanazawa, Japan and Dunhuang, China in 2005-2009 suggesting that Kosa (Asian dust) particles were effective carriers of micro biota. Mixture states of Kosa and micro biota certainly suppress the environmental stress such as ultra-violet solar radiation, dryness and low temperature. The papers in this special issue of EAROZORU KENKYU are mainly based on these balloon borne measurements, and the newest information is described. Considering that the westerly wind frequently transports lots of Kosa particles from arid and semi-arid regions in China and Mongolia to downwind including Japan, the effect of Kosa bioaerosol mixture on environment, weather and health is of large concern in downwind areas. The paper by Kohshima (this issue) describes interesting and valuable topics in order to discuss the effects of Kosa bioaerosols on environment.

著者

吉田 清香 皆巳 幸也 上田 哲行

出版者

日本環境動物昆虫学会

雑誌

環動昆 (ISSN:09154698)

巻号頁・発行日

vol.15, no.1, pp.13-17, 2004 (Released:2005-12-16)

参考文献数

16

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Marsh water was chemically analyzed in four habitats of Nannophya pygmaea Rambur in Ishikawa Prefecture, Japan. Somewhat acidic water (pH 5.7-6.4) was observed in one marsh, while the others often showed a higher value of pH (6.0-10.4). This result implies that suitable pH range for a habitat of the species is fairly wide including such a higher category, rather than recognized so far. Enrichment of mineral constituents such as Ca2+ compared to rainwater suggested that the marsh water was mainly supplied with ground water.

著者

藤田 雅俊 大河内 博 緒方 裕子 名古屋 俊士 皆巳 幸也

出版者

公益社団法人 日本分析化学会

雑誌

分析化学 (ISSN:05251931)

巻号頁・発行日

vol.62, no.12, pp.1111-1116, 2013-12-05 (Released:2013-12-28)

参考文献数

26

被引用文献数

1

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Rapid and sample preparation using stir bar sorptive extraction (SBSE), followed by high-performance liquid chromatography with fluorescence detection to determine polycyclic aromatic hydrocarbons (PAHs) in atmospheric water was studied. Applying the SBSE method to authentic atmospheric water samples revealed that rainwater in Shinjuku contained a 226 pM concentration of total PAHs, which was 10-times as much as that at Mt. Fuji, especially in a higher concentration of soluble PAHs. There was no seasonal variation of the concentration and composition of PAHs in rainwater at Shinjuku. Comparing the concentration of PAHs in rain, cloud, and dew water collected at the foot of Mt. Fuji, 5- and 6-rings PAHs were enriched in cloud water. This result suggests that cloud droplets could condense PAHs, especially high molecular weight PAHs.

著者

小林 由典 大河内 博 緒方 裕子 為近 和也 皆巳 幸也 名古屋 俊士

出版者

公益社団法人 大気環境学会

雑誌

大気環境学会誌 (ISSN:13414178)

巻号頁・発行日

vol.47, no.1, pp.33-44, 2012-01-10 (Released:2012-06-27)

参考文献数

32

被引用文献数

1

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26種類のAVOCs(塩素化炭化水素17種、単環芳香族炭化水素6種類、二環芳香族炭化水素3種類)の大気および大気水相のサンプリングを、2007年から2010年まで富士山と新宿で行った。2010年における大気中AVOCs濃度は富士山頂で最も高く(7月の平均総濃度:11.6 ppbv、n=5)、新宿(10~12月の平均総濃度:7.9 ppbv、n=52)、富士山南東麓(7月の平均総濃度:6.8 ppbv、n=9)の順であった。富士山頂における単環芳香族炭化水素(MAHs)の大気中濃度は都市域の新宿や国内外の高高度観測地点に比べて異常に高く、局地的な影響を受けている可能性がある。一方、2010年における大気水相中AVOCs濃度は富士山南東麓の雨水で15.8 nM(n=8)、富士山頂の雲水で15.7 nM(n=19)であり、新宿の露水で5.33 nM(n=15)、雨水で3.36 nM(n=30)であった。富士山における大気水相にはAVOCsが高濃度に含まれており、とくに塩素化炭化水素(CHs)は富士山南東麓の雨水および富士山頂の雲水ともにヘンリー則からの予測値以上に高濃縮されていた。大気水相へのAVOCsの高濃縮は大気中濃度、気温、各AVOCsの疎水性だけでは説明ができず、大気水相中の共存物質の影響が大きいものと推測された。