Environmental Chemistry Lab, Department of Applied Chemistry, Faculty of Science and Technology, Keio University
慶應義塾大学 理工学部
応用化学科 環境化学研究室
Led by Tomoaki OKUDA, Ph.D.

研究内容

トップ > 研究内容 > 業績【研究内容】

査読付論文

Publication List (Peer Reviewed)

  1. 90. Kono, M., Okuda, T., Takaishi, M., Ikeda, H., Ishihara, N., Ishihara, Y. (2022) Leaf extracts from Camellia sinensis and Argania spinosa suppress oxidative stress and chemokine release in human 3-dimensional cultured epidermis exposed to PM2.5 collected with cyclonic separation, Fundamental Toxicological Sciences, in press.
  2. 89. Kono, M., Okuda, T., Ishihara, N., Hagino, H., Tani, Y., Okochi, H., Tokoro, C., Takaishi, M., Ikeda, H., Ishihara, Y. (2022) Chemokine expression in human 3-dimensional cultured epidermis exposed to PM2.5 collected by cyclonic separation, Toxicological Research, in press, doi:10.1007/s43188-022-00142-4.
  3. 88. Jing, W., Saito, K., Okamoto, T., Saito, H., Sugimoto, K., Nishita-Hara, C., Hara, K., Hayashi, M., Hasegawa, S., Okuda, T. (2022) Characterization of elemental composition and valence state of cyclone-collected aerosol particles using EDXRF and XAFS at three sites in Japan, Asian Journal of Atmospheric Environment, in press., doi:10.5572/ajae.2021.137.
  4. 87. Ishihara, N., Okuda, T., Hagino, H., Oguro, A., Tani, Y., Okochi, H., Tokoro, C., Fujii-Kuriyama, Y., Itoh, K., Vogel, C.F.A., Ishihara, Y. (2022) Involvement of polycyclic aromatic hydrocarbons and endotoxin in macrophage expression of interleukin-33 induced by exposure to particulate matter, Journal of Toxicological Sciences, 47 (5), 201-210, doi:10.2131/jts.47.201.
  5. 86. Kurihara, K., Iwata, A., Murray Horwitz, S.G., Ogane, K., Sugioka, T., Matsuki, A., Okuda, T. (2022) Contribution of physical and chemical properties to dithiothreitol-measured oxidative potentials of atmospheric aerosol aarticles at urban and rural sites in Japan, Atmosphere, 13 (2), 319, doi:10.3390/atmos13020319.
  6. 85. Murakami, M., Yasutaka, T., Onishi, M., Naito, W., Shinohara, N., Okuda, T., Fujii, K., Katayama, K., Imoto, S. (2021) Living with COVID-19: mass gatherings and minimizing risk, QJM: An International Journal of Medicine, 114 (7), 437-439, doi:10.1093/qjmed/hcab163.
  7. 84. 杉本和貴,奥田知明,長谷川就一,西田千春,原圭一郎,林政彦 (2021) アスコルビン酸アッセイを用いた酸化能測定におけるアスコルビン酸の酸化メカニズムの解明, 大気環境学会誌, 56 (5), 96-107, doi:10.11298/taiki.56.96.
  8. 83. Kurihara, K., Iwata, A., Kiriya, M., Yoshino, A., Takami, A., Matsuki, A., Nishita-Hara, C., Hara, K., Hayashi, M., Kaneyasu, N., Seto, T., Fujitani, Y., Funato, K., Inoue, K., Okuda, T. (2021) Lung deposited surface area of atmospheric aerosol particles at three observatories in Japan, Atmospheric Environment, 262, 118597, doi:10.1016/j.atmosenv.2021.118597.
  9. 82. 奥田知明,村上道夫,内藤航,篠原直秀,藤井健吉 (2021) ウイルス感染症対策としてのCO2濃度の利用にむけた値の解釈について, リスク学研究, 30 (4), 207-212, doi:10.11447/jjra.SRA-0364.
  10. 81. Kajino, M., Hagino, H., Fujitani, Y., Morikawa, T., Fukui, T., Onishi, K., Okuda, T., Igarashi, Y. (2021) Simulation of the transition metal-based cumulative oxidative potential in East Asia and its emission sources in Japan, Scientific Reports, 11, 6550, doi:10.1038/s41598-021-85894-z.
  11. 80. Murakami, M., Miura, F., Kitajima, M., Fujii, K., Yasutaka, T., Iwasaki, Y., Ono, K., Shimazu, Y., Sorano, S., Okuda, T., Ozaki, A., Katayama, K., Nishikawa, Y., Kobashi, Y., Sawano, T., Abe, T., Saito, M., Tsubokura, M., Naito, W., Imoto, S. (2021) COVID-19 risk assessment at the opening ceremony of the Tokyo 2020 Olympic Games, Microbial Risk Analysis, 19, 100162, doi:10.1016/j.mran.2021.100162.
  12. 79. Alimov, Z.B., Kusakari, H., Okuda, T. (2021) Development of a low-cost simultaneous low volume air sampler controlled with sonic venturi, Asian Journal of Atmospheric Environment, 15 (1), 52-67, doi:10.5572/ajae.2020.072.
  13. 78. Ko, R., Hayashi, M., Tanaka, M., Okuda, T., Nishita-Hara, C., Ozaki, H., Uchio, E. (2021) Effects of ambient particulate matter on a reconstructed human corneal epithelial model, Scientific Reports, 11, 3417, doi:10.1038/s41598-021-82971-1.
  14. 77. Sagawa, T., Tsujikawa, T., Honda, A., Miyasaka, N., Tanaka, M., Kida, T., Hasegawa, K., Okuda, T., Kawahito, Y., Takano, H. (2021) Exposure to particulate matter upregulates ACE2 and TMPRSS2 expression in the murine lung, Environmental Research, Jan 7, 195:110722, doi:10.1016/j.envres.2021.110722.
  15. 76. Honda, A., Okuda, T., Nagao, M., Miyasaka, N., Tanaka, M., Takano, H. (2021) PM2.5 collected using cyclonic separation causes stronger biological responses than that collected using a conventional filtration method, Environmental Research, Nov 19;110490, 10.1016/j.envres.2020.110490.
  16. 75. Patel, P., Aggarwal, S.G., Tsai, C.-J., Okuda, T. (2021) Theoretical and Field Evaluation of a PM2.5 High-Volume Impactor Inlet Design, Atmospheric Environment, 244, 117811, doi:10.1016/j.atmosenv.2020.117811.
  17. 74. Kajino, M., Hagino, H., Fujitani, Y., Morikawa, T., Fukui, T., Onishi, K., Okuda, T., Kajikawa, T., Igarashi, Y. (2020) Modeling Transition Metals in East Asia and Japan and Its Emission Sources, GeoHealth, 4 (9), doi:10.1029/2020GH000259.
  18. 73. He, Y., Gu, Z., Lu, W., Zhang, L., Zhang, D., Okuda, T., Yu, C.W. (2020) Charging states on atmospheric aerosol particles affected by meteorological conditions, Particuology, 52, 1-9, doi:10.1016/j.partic.2019.12.007.
  19. 72. 齋藤克知,奥田知明,長谷川就一,西田千春,原圭一郎,林政彦 (2020) サイクロン法で採取された粒子状物質中CrのXAFSによる化学状態解析, 大気環境学会誌, 55 (2), 27-33, doi:10.11298/taiki.55.27.
  20. 71. Chowdhury, P.H., Honda, A., Ito, S., Okano, H., Onishi, T., Higashihara, M., Okuda, T., Tanaka, T., Hirai, S., Takano, H. (2019) Effects of ambient PM2.5 collected from Asian cities using cyclone technique on human airway epithelial cells, Aerosol and Air Quality Research, 19 (8), 1808-1819, doi:10.4209/aaqr.2019.01.0016..
  21. 70. Fujii, Y., Huboyo, H.S., Tohno, S., Okuda, T., Syafrudin (2019) Chemical speciation of water-soluble ionic components in PM2.5 derived from peatland fires in Sumatra Island, Atmospheric Pollution Research, 10 (4), 1260-1266,doi:10.1016/j.apr.2019.02.009.
  22. 69. 奥田知明,榎本太吉 (2019) ニューカレドニアにおけるエアロゾル中ニッケルおよび元素組成の特徴, エアロゾル研究, 34 (1), 29-34, doi:10.11203/jar.34.29.
  23. 68. Iwata, A., Fujioka, K., Yonemichi, T., Fukagata, K., Kurosawa, K., Tabata, R., Kitagawa, M., Takashima, T., Okuda, T. (2019) Seasonal variation in atmospheric particle electrostatic charging states determined using a parallel electrode plate device, Atmospheric Environment, 203, 62-69, doi:10.1016/j.atmosenv.2019.01.040.
  24. 67. Yonemichi, T., Fukagata, K., Fujioka, K., Okuda, T. (2019) Numerical simulation of parallel-plate particle separator for estimation of charge distribution of PM2.5. Aerosol Science and Technology, doi:10.1080/02786826.2019.1569198.
  25. 66. Ogino, K., Nagaoka, K., Ito, T., Takemoto, K., Okuda, T., Nakayama, S., Ogino, N., Seki, Y., Hamada, H., Takashiba, S., Fujikura, Y. (2019) Involvement of PM2.5-bound protein and metals in PM2.5-induced allergic airway inflammation in mice, Inhalation Toxicology, 30 (13-14), 498-508, doi:10.1080/08958378.2018.1561769.
  26. 65. 奥田知明,坂出壮伸,藤岡謙太郎,田端凌也,黒澤景一,野村優貴,岩田歩,藤原基 (2019) 地下鉄構内空気中粒子状物質の特性調査, 大気環境学会誌, 54 (1), 28-33, doi:10.11298/taiki.54.28. 【2020年度大気環境学会論文賞(技術調査)受賞】
  27. 64. He, Y., Gu, Z., Lu, W., Zhang, L., Okuda, T., Fujioka, K., Luo, H., Yu, C. (2019) Atmospheric humidity and particle charging state on agglomeration of aerosol particles, Atmospheric Environment, 197, 141-149, doi:10.1016/j.atmosenv.2018.10.035.
  28. 63. Onishi, T., Honda, A., Tanaka, M., Chowdhury, P.H., Okano, H., Okuda, T., Shishido, D., Terui, Y., Hasegawa, S., Kameda, T., Tohno, S., Hayashi, M., Nishita-Hara, C., Hara, K., Inoue, K., Yasuda, M., Hirano, S., Takano, H. (2018) Ambient fine and coarse particles in Japan affect nasal and bronchial epithelial cells differently and elicit varying immune response, Environmental Pollution Part B, 242, 1693-1701, doi:10.1016/j.envpol.2018.07.103.
  29. 62. Okuda, T., Shishido, D., Terui, Y., Fujioka, K., Isobe, R., Iwaki, Y., Funato, K., Inoue, K. (2018) Development of a high-volume simultaneous sampler for fine and coarse particles using virtual impactor and cyclone techniques, Asian Journal of Atmospheric Environment, 12 (1), 78-86, doi:10.5572/ajae.2018.12.1.078.
  30. 61. 松永有加,奥田知明,對馬孝治 (2017) 神奈川県藤沢市における高濃度PM2.5の発生要因の検討, 環境情報科学学術研究論文集, 31, 53-58, doi:10.11492/ceispapers.ceis31.0_53.
  31. 60. Saha, M., Maharana, D., Kurumisawa, R., Takada, H., Yeo, G.B., Rodrigues, A.C., Bhattacharya, B., Kumata, H., Okuda, T., He, K., Ma, Y., Nakajima, F., Zakaria, M.P., Giang, D.H., Viet, P.H. (2017) Seasonal trends of atmospheric PAHs in five Asian megacities and source detection using suitable biomarkers, Aerosol and Air Quality Research, 17 (9), 2247-2262, doi:10.4209/aaqr.2017.05.0163.
  32. 59. Kiriya, M., Okuda, T., Yamazaki, H., Hatoya, K., Kaneyasu, N., Uno, I., Nishita, C., Hara, K., Hayashi, M., Funato, K., Inoue, K., Yamamoto, S., Yoshino, A., Takami, A. (2017) Monthly and diurnal variation of the concentrations of aerosol surface area in Fukuoka, Japan, measured by diffusion charging method, Atmosphere, 8 (7), 114, doi:10.3390/atmos8070114.
  33. 58. Okuda, T., Isobe, R. (2017) Improvement of a high-volume aerosol particle sampler for collecting submicron particles through the combined use of a cyclone with a smoothened inner wall and a circular cone attachment, Asian Journal of Atmospheric Environment, 11 (2), 131-137, doi:10.5572/ajae.2017.11.2.131.
  34. 57. Kaneyasu, N., Ohashi, H., Suzuki, F., Okuda, T., Ikemori, F., Akata, N., Kogure, T. (2017) Weak size dependence of resuspended radiocesium adsorbed on soil particles collected after the Fukushima nuclear accident, Journal of Environmental Radioactivity, 172, 122-129, doi:10.1016/j.jenvrad.2017.03.001.
  35. 56. Ogino, K., Nagaoka, K., Okuda, T., Oka, A., Kubo, M., Eguchi, E., Fujikura, Y. (2017) PM2.5 induced airway inflammation and hyperresponsiveness in NC/Nga mice, Environmental Toxicology, 32 (3), 1047-1054, doi:10.1002/tox.22303.
  36. 55. Kamiya, Y., Iijima, A., Ikemori, F., Okuda, T., Ohura, T. (2016) Source apportionment of chlorinated polycyclic aromatic hydrocarbons associated with ambient particles in a Japanese megacity, Scientific Reports, 6, Article number: 38358, doi:10.1038/srep38358.
  37. 54. Okuda, T., Yamazaki, H., Hatoya, K., Kaneyasu, N., Yoshino, A., Takami, A., Funato, K., Inoue, K., Nishita, C., Hara, K., Hayashi, M. (2016) Factors controlling the variation of aerosol surface area concentrations measured by a diffusion charger in Fukuoka, Japan, Atmosphere, 7 (3), 33, doi:10.3390/atmos7030033.
  38. 53. Hatoya, K., Okuda, T., Funato, K., Inoue, K. (2016) On-line measurement of the surface area concentration of aerosols in Yokohama, Japan, using the diffusion charging method, Asian Journal of Atmospheric Environment, 10(1), 1-12, doi:10.5572/ajae.2016.10.1.001.
  39. 52. Fujii, Y., Mahmud, M., Tohno, S., Okuda, T., Mizohata, A. (2015) A case study of PM2.5 characterization in Bangi, Selangor, Malaysia during the southwest monsoon season, Aerosol and Air Quality Research, 16 (11), 2685-2691, doi:10.4209/aaqr.2015.04.0277.
  40. 51. Zhang, H., Magara-Gomez, K.T., Olson, M.R., Okuda, T., Walz, K.A., Schauer, J.J., Kleeman, M.J. (2015) Atmospheric impacts of black carbon emission reductions through the strategic use of biodiesel in California, Science of the Total Environment, 538, 412-422, doi:10.1016/j.scitotenv.2015.08.030.
  41. 50. 奥田知明,郡司裕真,Lenggoro, I.W. (2015) Kelvin Probe Force Microscopyを用いたエアロゾル個別粒子の帯電状態の測定, エアロゾル研究, 30(3), 190-197, doi:10.11203/jar.30.190.【2016年度日本エアロゾル学会計測賞受賞】
  42. 49. 奥田知明,永井雄祐,磯部涼真,船戸浩二,井上浩三 (2015) 簡易単孔ノズル型ミドルボリュームPM2.5バーチャルインパクターの開発と性能評価, 大気環境学会誌, 50 (4), 185-191, doi:10.11298/taiki.50.185.
  43. 48. Okuda, T., Yoshida, T., Gunji, Y., Okahisa, S., Kusdianto, K., Gen, M., Sato, S., Lenggoro, I.W. (2015) Preliminary study on the measurement of the electrostatic charging state of PM2.5 collected on filter media, Asian Journal of Atmospheric Environment, 9 (2), 137-145, doi:10.5572/ajae.2015.9.2.137.
  44. 47. Okuda, T., Isobe, R., Nagai, Y., Okahisa, S., Funato, K., Inoue, K. (2015) Development of a high-volume PM2.5 particle sampler using impactor and cyclone techniques, Aerosol and Air Quality Research, 15 (3), 759-767, doi:10.4209/aaqr.2014.09.0194.
  45. 46. 奥田知明 (2014) 北京におけるPM2.5の推移と現状, エアロゾル研究, 29 (4), 263-271, doi:10.11203/jar.29.263.
  46. 45. Okuda, T., Schauer, J.J., Shafer, M.M. (2014) Improved methods for elemental analysis of atmospheric aerosols for evaluating human health impacts of aerosols in East Asia, Atmospheric Environment, 97, 552-555, doi:10.1016/j.atmosenv.2014.01.043.
  47. 44. Kaneyasu, N., Yamamoto, S., Sato, K., Takami, A., Hayashi, M., Hara, K., Kawamoto, K., Okuda, T., Hatakeyama, S. (2014) Impact of long-range transport of aerosols on the PM2.5 composition at a major metropolitan area in the northern Kyushu area of Japan, Atmospheric Environment, 97, 416-425, doi:10.1016/j.atmosenv.2014.01.029.
  48. 43. 奥田知明,鳩谷和希,中井里史,田村憲治 (2014) EDXRF-FP法によるPM2.5の非破壊多元素同時分析とその疫学研究への応用, エアロゾル研究, 29 (S1), 218-224, doi:10.11203/jar.29.s218.
  49. 42. 奥田知明,小島礼子,渡部功太郎,松浦慎一郎,大久保圭祐,鳩谷和希,郡司裕真 (2013) 優先取組物質の見直しに対応した大気中クロム分析法の開発, 大気環境学会誌, 48 (6), 268-273, doi:10.11298/taiki.48.268.
  50. 41. Okuda, T., Gunji, Y., He, K., Ma, Y. (2013) Persulfate wet oxidation method for the determination of total phosphorus in atmospheric aerosols and its application for a year-round observation in Beijing, Asian Journal of Atmospheric Environment, 7 (3), 169-175, doi:10.5572/ajae.2013.7.3.169.
  51. 40. 奥田知明,鳩谷和希 (2013) ファンダメンタルパラメーター法を用いたEDXRFによるPM2.5の非破壊多元素同時分析法の開発, エアロゾル研究, 28 (3), 214-221, doi:10.11203/jar.28.214.【2014年度日本エアロゾル学会論文賞受賞】
  52. 39. Okuda, T., Fujimori, E., Hatoya, K., Takada, H., Kumata, H., Nakajima, F., Hatakeyama, S., Uchida, M., Tanaka, S., He, K., Ma, Y., Haraguchi, H. (2013) Rapid and simple determination of multi-elements in aerosol samples collected on quartz fiber filters by using EDXRF coupled with fundamental parameter quantification technique, Aerosol and Air Quality Research, 13 (6), 1864-1876, doi:10.4209/aaqr.2012.11.0308.
  53. 38. Okuda, T., (2013) Measurement of the specific surface area and particle size distribution of atmospheric aerosol reference materials, Atmospheric Environment, 75, 1-5, doi:10.1016/j.atmosenv.2013.04.033.
  54. 37. Okuda, T., Takada, H., Kumata, H., Nakajima, F., Hatakeyama, S., Uchida, M., Tanaka, S., He, K., Ma, Y. (2013) Inorganic chemical characterization of aerosols in four Asian mega-cities, Aerosol and Air Quality Research, 13 (2), 436-449, doi:10.4209/aaqr.2012.09.0250.
  55. 36. 奥田知明,松浦慎一郎,大久保圭祐,鳩谷和希 (2013) 太陽電池駆動PM2.5サンプラーの開発, エアロゾル研究, 28(1), 63-70, doi:10.11203/jar.28.63.
  56. 35. 奥田知明 (2012) ディーゼル排気粒子の化学組成に対する金属系燃料添加剤の影響, エアロゾル研究, 27 (2), 156-159, doi:10.11203/jar.27.156.
  57. 34. Kaneyasu, N., Ohashi, H., Suzuki, F., Okuda, T., Ikemori, F. (2012) Sulfate aerosol as a potential transport medium of radiocesium from the Fukushima nuclear accident, Environmental Science & Technology, 46 (11), 5720-5726, doi:10.1021/es204667h.【2016年度産業技術総合研究所論文賞受賞】
  58. 33. Magara-Gomez, K.T., Olson, M.R., Okuda, T., Walz, K.A., Schauer, J.J., (2012) Sensitivity of diesel particulate material emissions and composition to blends of petroleum diesel and biodiesel fuel, Aerosol Science and Technology, 46 (10), 1109-1118, doi:10.1080/02786826.2012.696315.
  59. 32. Magara-Gomez, K.T., Olson, M.R., Okuda, T., Walz, K.A., Schauer, J.J., (2012) Sensitivity of hazardous air pollutant emissions to the combustion of blends of petroleum diesel and biodiesel fuel, Atmospheric Environment, 50, 307-313, doi:10.1016/j.atmosenv.2011.12.007.
  60. 31. Yang, F., Tan, J., Shi, Z. B., Cai, Y., He, K., Ma, Y., Duan, F., Okuda, T., Tanaka, S., Chen, G., (2012) Five-year record of atmospheric precipitation chemistry in urban Beijing, China, Atmospheric Chemistry and Physics, 12 (4), 2025-2035, doi:10.5194/acp-12-2025-2012.
  61. 30. Okuda, T., Matsuura, S., Yamaguchi, D., Umemura, T., Hanada, E., Orihara, H., Tanaka, S., He, K., Ma, Y., Cheng, Y., Liang, L. (2011) The impact of the pollution control measures for the 2008 Beijing Olympic Games on the chemical composition of aerosols, Atmospheric Environment, 45 (16), 2789-2794, doi:10.1016/j.atmosenv.2011.01.053.
  62. 29. Okuda, T., Okamoto, K., Tanaka, S., Shen, Z.X., Han, Y.M., Huo, Z.Q. (2010) Measurement and source identification of polycyclic aromatic hydrocarbons (PAHs) in the aerosol in Xi’an, China, by using automated column chromatography and applying positive matrix factorization (PMF), Science of the Total Environment, 408 (8), 1909-1914, doi:10.1016/j.scitotenv.2010.01.040.
  63. 28. Okuda, T., Schauer, J.J., Olson, M.R., Shafer, M.M., Rutter, A.P., Walz, K.A., Morschauser, P.A. (2009) Effects of a platinum-cerium bimetallic fuel additive on the chemical composition of diesel engine exhaust particles, Energy & Fuels, 23, 4974-4980, doi:10.1021/ef900370v.
  64. 27. Shen Z.X., Cao, J.J., Arimoto, R., Han, Z.W., Zhang, R.J., Han, Y.M., Liu, S.X., Okuda, T., Nakao, S., Tanaka, S. (2009) Ionic composition of TSP and PM2.5 during dust storms and air pollution episodes at Xi’an, China, Atmospheric Environment, 43 (18), 2911-2918, doi:10.1016/j.atmosenv.2009.03.005.
  65. 26. 奥田知明,黒田寿晴,奈良富雄,岡本和城,岡林佑美,直井大輔,田中茂,He, Kebin,Ma, Yongliang,Jia, Yingtao,Zhao, Qing (2009) 自動化カラムクロマトグラフィー装置の開発と浮遊粒子状物質中多環芳香族炭化水素類の定量への応用, 分析化学 58 (4), 287-292, doi:10.2116/bunsekikagaku.58.287.
  66. 25. Kim, Ki-Hyun, Ma, Chang-Jin, Okuda, T. (2009) An analysis of long-term changes in airborne toxic metals in South Korea’s two largest cities from 1991 to 2004, Environmental Science and Pollution Research 16, 565-572, doi:10.1007/s11356-009-0104-x.
  67. 24. Tanimoto, H., Sato,K., Butler, T., Lawrence, M.G., Fisher, J.A., Kopacz, M., Yantosca, R.M., Kanaya, Y., Kato, S., Okuda, T., Tanaka, S., Zeng, J. (2009) Exploring CO pollution episodes observed at Rishiri Island by chemical weather simulations and AIRS satellite measurements: Long-range transport of burning plumes and implications for emissions inventories. Tellus 61B (2), 394-407, doi:10.1111/j.1600-0889.2008.00407.x.
  68. 23. Shen Z.X., Arimoto, R., Cao, J.J., Zhang, R.J., Li, X.X., Du, N., Okuda, T., Nakao, S., Tanaka, S. (2008) Seasonal variations and evidence for the effectiveness of pollution controls on water-soluble inorganic species in total suspended particulates and fine particulate matter from Xi’an, China. Journal of Air and Waste Management Association 58 (12), 1560-1570, doi:10.3155/1047-3289.58.12.1560.
  69. 22. Santosa, S. J., Okuda, T., Tanaka, S. (2008) Air pollution and urban air quality management in Indonesia, Clean - Soil, Air, Water 36 (5-6), 466-475, doi:10.1002/clen.200800038.
  70. 21. Okuda, T., Katsuno, M., Naoi, D., Nakao, S., Tanaka, S., He, K., Ma, Y., Lei, Y., Jia, Y. (2008) Trends in hazardous trace metal concentrations in aerosols collected in Beijing, China from 2001 to 2006, Chemosphere 72 (6), 917-924, doi:10.1016/j.chemosphere.2008.03.033.
  71. 20. 奥田知明, 中尾俊介, 田中茂, Z.X. Shen, K. He, Y. Ma, Y. Lei, Y. Jia (2007) 中国西安市及び北京市における大気粉塵中水溶性イオン成分濃度の特徴, 地球化学, 41 (4), 113-123. CiNii
  72. 19. Okuda, T., Nakao, S., Katsuno, M. Tanaka, S. (2007) Source identification of nickel in TSP and PM2.5 in Tokyo, Japan, Atmos. Environ., 41 (35), 7642-7648, doi:10.1016/j.atmosenv.2007.08.050.
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