Yugo KANAYA

Main Professional Interests

• Atmospheric chemistry, Radical photochemistry, Field observations of Asian regional atmospheric pollution and process studies, Instrument development based on optical techniques

Specific Research Interests

• Behavior of OH and HO2 radicals in the atmosphere
• Field observations of ozone and aerosols under international collaboration, especially with China
• Oxidative processes of organic aerosols and their effects on optical properties
• MAX-DOAS observations, long-term and intensive

• 75. Ohizumi, T., H. Akimoto, Y. Kanaya, T. Nagashima, T. Sakurai, T. Ohara, and K. Sato, Assessment for Japanese Photochemical Ozone Pollution by 8-hour Average Concentration, Jpn J. Atmos. Environ., in press (2013). (Japanese with English abstract)
• 74. Pan, X., Y. Kanaya, Z. Wang, Y. Komazaki, F. Taketani, H. Akimoto, P. Pochanart, Variation of carbonaceous aerosols from open crop residue burning with transport and its implication to estimate their lifetimes, Atmos. Environ., in press (2013).
• 73. Li, J., Z. Wang, K. Yamaji,  M.Takigawa, Y. Kanaya, F. Taketani, X. Pan, M. Hu, F. Meng and T. Yang, Uplifting of Asian continental pollution, SOLA, in press (2013).
• 72. Kawamura, K., E. Tachibana, K. Okuzawa, S. G. Aggarwal, Y. Kanaya, and Z. F. Wang, High abundances of water-soluble dicarboxylic acids, ketocarboxylic acids and α-dicarbonyls in the mountain aerosols over the North China Plain during wheat burning season, Atmos. Chem. Phys. Discuss., 13, 3695-3734 (2013).
• 71. Kawamura, K., K. Okuzawa, S. G. Aggarwal, H. Irie, Y. Kanaya, and Z. Wang, Determination of gaseous and particulate carbonyls (glycolaldehyde, hydroxyacetone, glyoxal, methylglyoxal, nonanal and decanal) in the atmosphere at Mt. Tai, Atmos. Chem. Phys. Discuss., 13, 2725-2758 (2013).
• 70. Taketani, F., Y. Kanaya, and H. Akimoto, Kinetic studies of heterogeneous reaction of HO2 radical by dicarboxylic acid particles, Int. J. Chem. Kinet., in press (2013).
• 69. Kanaya, Y., Akimoto, H., Wang, Z.-F., Pochanart, P., Kawamura, K., Liu, Y., Li, J., Komazaki, Y., Irie, H., Pan, X.-L., Taketani, F., Yamaji, K., Tanimoto, H., Inomata, S., Kato, S., Suthawaree, J., Okuzawa, K., Wang, G., Aggarwal, S. G., Fu, P. Q., Wang, T., Gao, J., Wang, Y., and Zhuang, G.: Overview of the Mount Tai Experiment (MTX2006) in Central East China in June 2006: studies of significant regional air pollution, Atmos. Chem. Phys. Discuss., 13, 1527-1573, doi:10.5194/acpd-13-1527-2013 (2013).
• 68. F. Taketani, Y. Kanaya, T. Nakamura, K. Koizumi, N. Moteki, N.Takegawa, Measurement of Fluorescence Spectra from Atmospheric Single Submicron Particle Using Laser-induced Fluorescence Technique, J. Aerosol. Sci., 58, 1-8 (2013).
• 67. Pan, X. L., Y. Kanaya, Z. F. Wang, F. Taketani, H. Tanimoto, H. Irie, H. Takashima, and S. Inomata, Emission ratio of carbonaceous aerosols observed near crop residual burning sources in a rural area of the Yangtze River Delta Region, China, J. Geophys. Res., 117, D22304, doi:10.1029/2012JD018357 (2012).
• 66. Pan, X. L., Y. Kanaya, Z. F. Wang, Y. Komazaki, F. Taketani, H. Akimoto, P. Pochanart, and Y. Liu, Estimation of lifetime of carbonaceous aerosol from open crop residue burning during Mount Tai Experiment 2006 (MTX2006), Atmos. Chem. Phys. Discuss., 12, 14363-14392 , 2012.
• 65. Suthawaree, J., S. Kato, P. Pochanart, Y. Kanaya, H. Akimoto, Z. Wang, Y. Kajii, Influence of Beijing outflow on Volatile Organic Compounds (VOC) observed at a mountain site in North China Plain, Atmos. Res., 111, 46-57, 2012.
• 64. Taketani, F., Kanaya, Y., Pochanart, P., Liu, Y., Li, J., Okuzawa, K., Kawamura, K., Wang, Z., and Akimoto, H.: Measurement of overall uptake coefficients for HO₂ radicals by aerosol particles sampled from ambient air at Mts. Tai and Mang, China, Atmos. Chem. Phys., 12, 11907-11916, doi: 10.5194/acp-12-11907-2012 (2012).
• 63. Irie, H., K. F. Boersma, Y. Kanaya, H. Takashima, X. Pan, and Z. F. Wang, Quantitative bias estimates for tropospheric NO2 columns retrieved from SCIAMACHY, OMI, and GOME-2 using a common standard for East Asia, Atmos. Meas. Tech., 5, 2403-2411, 2012.
• 62. Kanaya, Y., F. Taketani, Y. Komazaki, X.Liu, Y. Kondo, L. K. Sahu, H. Irie, H. Takashima, "Comparison of black carbon mass concentrations observed by multi-angle absorption photometer (MAAP) and continuous soot-monitoring system (COSMOS) on Fukue Island and in Tokyo, Japan", Aerosol Sci. Technol , 47, 1-10 (2013).
• 61. Fu, P. Q., Kawamura, K., Chen, J., Li, J., Sun, Y. L., Liu, Y., Tachibana, E., Aggarwal, S. G., Okuzawa, K., Tanimoto, H., Kanaya, Y., and Wang, Z. F.: Diurnal variations of organic molecular tracers and stable carbon isotopic compositions in atmospheric aerosols over Mt. Tai in North China Plain: an influence of biomass burning, Atmos. Chem. Phys., 12, 8359-8375, doi:10.5194/acp-12-8359-2012 (2012).
• 60. Xu, J., P-H. Xie, F-Q. Si, A. Li, K. Dou, W.Q. Liu, Y. Kanaya, and H. Irie, Comparison of NO2 slant columns between two geound-based MAX-DOAS, Spectroscopy and Spectral Anal., 32(2), 558-564 (2012).
• 59. Elshorbany, Y. F., Kleffmann, J., Hofzumahaus, A., Kurtenbach, R., Wiesen, P., Brauers, T., Bohn, B., Dorn, H.-P., Fuchs, H., Holland, F., Rohrer, F., Tillmann, R., Wegener, R., Wahner, A., Kanaya, Y., Yoshino, A., Nishida, S., Kajii, Y. J., Martinez, M., Kubistin, D., Harder, H., Lelieveld, J., Elste, T., Plass-Dülmer, C., Stange, G., Berresheim, H., and Schurath, U.: HOx Budgets during HOxComp: a Case Study of HOx Chemistry under NOx limited Conditions, J. Geophys. Res., 117, D03307, doi:10.1029/2011JD017008 (2012).
• 58. Kanaya, Y., Hofzumahaus, A., Dorn, H.-P., Brauers, T., Fuchs, H., Holland, F., Rohrer, F., Bohn, B., Tillmann, R., Wegener, R., Wahner, A., Kajii, Y., Miyamoto, K., Nishida, S., Watanabe, K., Yoshino, A., Kubistin, D., Martinez, M., Rudolf, M., Harder, H., Berresheim, H., Elste, T., Plass-Dülmer, C., Stange, G., Kleffmann, J., Elshorbany, Y., and Schurath, U.: Comparisons of observed and modeled OH and HO2 concentrations during the ambient measurement period of the HOxComp field campaign, Atmos. Chem. Phys., 12, 2567-2585, doi:10.5194/acp-12-2567-2012 (2012)
• 57. Piters, A. J. M., Boersma, K. F., Kroon, M., Hains, J. C., Van Roozendael, M., Wittrock, F., Abuhassan, N., Adams, C., Akrami, M., Allaart, M. A. F., Apituley, A., Beirle, S., Bergwerff, J. B., Berkhout, A. J. C., Brunner, D., Cede, A., Chong, J., Clémer, K., Fayt, C., Frieß, U., Gast, L. F. L., Gil-Ojeda, M., Goutail, F., Graves, R., Griesfeller, A., Großmann, K., Hemerijckx, G., Hendrick, F., Henzing, B., Herman, J., Hermans, C., Hoexum, M., van der Hoff, G. R., Irie, H., Johnston, P. V., Kanaya, Y., Kim, Y. J., Klein Baltink, H., Kreher, K., de Leeuw, G., Leigh, R., Merlaud, A., Moerman, M. M., Monks, P. S., Mount, G. H., Navarro-Comas, M., Oetjen, H., Pazmino, A., Perez-Camacho, M., Peters, E., du Piesanie, A., Pinardi, G., Puentadura, O., Richter, A., Roscoe, H. K., Schönhardt, A., Schwarzenbach, B., Shaiganfar, R., Sluis, W., Spinei, E., Stolk, A. P., Strong, K., Swart, D. P. J., Takashima, H., Vlemmix, T., Vrekoussis, M., Wagner, T., Whyte, C., Wilson, K. M., Yela, M., Yilmaz, S., Zieger, P., and Zhou, Y.: The Cabauw Intercomparison campaign for Nitrogen Dioxide measuring Instruments (CINDI): design, execution, and early results, Atmos. Meas. Tech., 5, 457-485 (2012)
• 56. Takashima, H., Irie, H., Kanaya, Y., and Syamsudin, F.: NO₂ observations over the western Pacific and Indian Ocean by MAX-DOAS on Kaiyo, a Japanese research vessel, Atmos. Meas. Tech., 5, 2351-2360, doi:10.5194/amt-5-2351- 2012 (2012)
• 55. Pan, X. L., Kanaya, Y., Wang, Z. F., Liu, Y., Pochanart, P., Akimoto, H., Sun, Y. L., Dong, H. B., Li, J., Irie, H., and Takigawa, M.: Correlation of black carbon aerosol and carbon monoxide in the high-altitude environment of Mt. Huang in Eastern China, Atmos. Chem. Phys., 11, 9735-9747, doi:10.5194/acp-11-9735-2011 (2011)
• 54. Irie, H., Takashima, H., Kanaya, Y., Boersma, K. F., Gast, L., Wittrock, F., Brunner, D., Zhou, Y., and Van Roozendael, M.: Eight-component retrievals from ground-based MAX-DOAS observations, Atmos. Meas. Tech., 4, 1027-1044, doi:10.5194/amt-4-1027-2011 (2011)
• 53. Li, J., Z.Wang, X. Wang, K. Yamaji, M. Takigawa, Y. Kanaya, P. Pochanart, Y. Liu, H. Irie, B. Hu, H.Tanimoto, H. Akimoto, “Impacts of aerosols on summertime tropospheric photolysis frequencies and photochemistry over Central Eastern China”, Atmos. Environ., 45(10), 1817-1829 (2011)
• 52. Takashima, H., H. Irie, Y. Kanaya, H. Akimoto, “Enhanced NO2 at Okinawa Island, Japan caused by rapid air mass transport from China as observed by MAX-DOAS”, Atmos. Environ., 45(15), 2593-2597 (2011)
• 51. Fu, P. Q., K. Kawamura, Y. Kanaya, Z. Wang, “Contributions of biogenic volatile organic compounds to the formation of secondary organic aerosols over Mt. Tai, Central East China”, Atmos. Environ., 44, 4817-4826  (2010).
• 50. Kanaya, Y., F. Taketani, H. Irie, Y. Komazaki, H. Takashima, I. Uno, PM2.5 mass concentrations observed at Fukue Island, Kyushu, Japan: Exceedance with respect to atmospheric environmental standard, Jpn J. Atmos. Environ., submitted (2010). (Japanese with English abstract)
• 49. Roscoe, H. K.., Van Roozendael, C. Fayt, A. du Piesanie, N. Abuhassan, C. Adams, M. Akrami, A. Cede, J. Chong, K. Clémer, U. Friess, M. Gil Ojeda, F. Goutail, R. Graves, A. Griesfeller, K. Grossmann, G. Hemerijckx, F. Hendrick, J. Herman, C. Hermans, H. Irie, P. V. Johnston, Y. Kanaya, K. Kreher, R. Leigh, A. Merlaud, G. H. Mount, M. Navarro, H. Oetjen, A. Pazmino, M. Perez-Camacho, E. Peters, G. Pinardi, O. Puentedura, A. Richter, A. Schönhardt, R. Shaiganfar, E. Spinei, K. Strong, H. Takashima, T. Vlemmix, M. Vrekoussis, T. Wagner, F. Wittrock, M. Yela, S. Yilmaz, F. Boersma, J. Hains, M. Kroon, and A. Piters, Intercomparison of slant column measurements of NO2 and O4 by MAX-DOAS and zenith-sky UV and visible spectrometers, Atmos. Meas. Tech., 3, 1629-1646, doi:10.5194/amt-3-1629-2010 (2010).
• 48. Fuchs, H., T. Brauers, H.-P. Dorn, H. Harder, R. Häseler, A. Hofzumahaus, F. Holland, Y. Kanaya, Y. Kajii, D. Kubistin, S. Lou, M. Martinez, K. Miyamoto, S. Nishida, M. Rudolf, E. Schlosser, A. Wahner, A. Yoshino, and U. Schurath, Technical Note: Formal blind intercomparison of HO2 measurements in the atmosphere simulation chamber SAPHIR during the HOxComp campaign, Atmos. Chem. Phys., 10, 12233-12250 (2010).
• 47. S. Inomata, H. Tanimoto, S. Kato, J. Suthawaree, Y. Kanaya, P. Pochanart, Y. Liu, and Z. Wang, PTR-MS measurements of non-methane volatile organic compounds during an intensive field campaign at the summit of Mount Tai, China, in June 2006, Atmos. Chem. Phys., 10, 7085-7099 (2010).
• 46. Taketani, F., Y. Kanaya, H. Akimoto, Kinetics of HO2 Uptake in Levoglucosan and Polystyrene Latex Particles, J. Phys. Chem. Lett. 1, 1701–1704, DOI: 10.1021/jz100478s (2010).
• 45. Kondo, Y., N. Takegawa, T. Miyakawa, M. Koike, Y. Miyazaki, Y. Kanaya, M. Mochida, M. Kuwata, Y. Morino, M. Shiraiwa, Formation and transport of aerosols in Tokyo in relation to their physical and chemical properties –A review-, J. Meteorol. Soc. Jpn., 88, 597-624 (2010).
• 44. Yamaji, K., Li, J., Uno, I., Kanaya, Y., Komazaki, Y., Pochanart, P., Liu, Y., Takigawa, M., Ohara, T., Yan, X., Wang, Z., and Akimoto, H.: Impact of open crop residual burning on air quality over Central Eastern China during the Mount Tai Experiment 2006 (MTX2006), Atmos. Chem. Phys., 10, 7353-7368 (2010).
• 43. Lee, H., H. Irie, J. Ryu, Y. Kanaya, Y. Noh, Y. J. Kim, S. Kwon, M. Trail, A. G. Russell, “Lower tropospheric aerosol measurements by MAX-DOAS during severe Asian dust period”, Aerosol Sci. Tech., 43 (12), 1208-1217 (2009).
• 42. Fu, P. Q., K. Kawamura, P. Pochanart, H. Tanimoto, Y. Kanaya, and Z. F. Wang, “Summertime contributions of isoprene, monoterpenes, and sesquiterpene oxidation to the formation of secondary organic aerosol in the troposphere over Mt. Tai, Central East China during MTX2006”, Atmos. Chem. Phys. Discuss., 9, 16941-16972 (2009).
• 41. Suthawaree, J., S. Kato, K. Okuzawa, Y. Kanaya, P. Pochanart, H. Akimoto, Z. Wang, and Y. Kajii, “Measurements of volatile organic compounds in the middle of Central East China during Mount Tai Experiment 2006 (MTX2006): observation of regional background and impact of biomass burning”, Atmos. Chem. Phys. Discuss., 9, 16715-16753 (2009).
• 40. Schlosser, E., T. Brauers, H.-P. Dorn, H. Fuchs, R. Häseler, A. Hofzumahaus, F. Holland, A. Wahner, Y. Kanaya, Y. Kajii, K. Miyamoto, S. Nishida, K. Watanabe, A. Yoshino, D. Kubistin, M. Martinez, M. Rudolf, H. Harder, H. Berresheim, T. Elste, C. Plass-Dülmer, G. Stange, and U. Schurath, “Technical Note: Formal blind intercomparison of OH measurements: results from the international campaign HoxComp”, Atmos. Chem. Phys., 9, 7923-7948 (2009).
• 39. Irie, H., Y. Kanaya, H. Takashima, J. F. Gleason, and Z. Wang, “Characterization of OMI tropospheric NO2 measurements in East Asia based on a robust validation comparison”, SOLA, 5, 117-120 (2009).
• 38. Kanaya, Y., P. Pochanart, Y. Liu, J. Li, H. Tanimoto, S. Kato, J. Suthawaree, S. Inomata, F. Taketani, K. Okuzawa, K. Kawamura, H. Akimoto, and Z. F. Wang, “Rates and regimes of photochemical ozone production over Central East China in June 2006: A box model analysis using comprehensive measurements of ozone precursors”, Atmos. Chem. Phys., 9, 7711-7723, (2009).
• 37. Takashima, H., H. Irie, Y. Kanaya, A. Shimizu, K. Aoki, and H. Akimoto, “Atmospheric aerosol variations at Okinawa Island in Japan observed by MAX-DOAS using a new cloud-screening method”, J. Geophys. Res., 114, D18213, doi:10.1029/2009JD011939. (2009).
• 36. Irie, H., Y. Kanaya, H. Akimoto, H. Iwabuchi, A. Shimizu, and K. Aoki, “Dual-wavelength aerosol vertical profile measurements by MAX-DOAS at Tsukuba, Japan”, Atmos. Chem. Phys. 9, 2741-2749 (2009).
• 35. Taketani, F., Y. Kanaya, and H. Akimoto, “Heterogeneous Loss of HO2 by KCl, Synthetic sea salt and natural seawater aerosol particles”, Atmos. Environ. 43, 1660–1665 (2009).
• 34. Tanimoto, H., K. Sato, T. Butler, M. G. Lawrence, J. A. Fisher, M. Kopacz, R.M. Yantosca, Y. Kanaya, S. Kato, T. Okuda, S. Tanaka, J. Zeng, 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 B, 61, 394-407, doi: 10.1111/j.1600-0889.2008.00407.x, (2009).
• 33. Li, J., Z. Wang, H. Akimoto, K. Yamaji, M. Takigawa, P. Pochanart, Y. Liu, Y. Kanaya, “Impact of Chemical Production and Transport on Summertime Diurnal Ozone Behavior at a Mountainous Site in Central Eastern China”, SOLA, 4, 121-124 (2008) .
• 32. Kanaya, Y., Y. Komazaki, P. Pochanart, Y. Liu, H. Akimoto, J. Gao, T. Wang, and Z. Wang, Mass concentrations of black carbon measured by four instruments in the middle of Central East China in June 2006, Atmos. Chem. Phys., 8, 7637-7649 (2008).
• 31. Li, J., Z. Wang, H. Akimoto, K. Yamaji, M. Takigawa, P. Pochanart, Y. Liu, Y. Kanaya, “Near-ground ozone source attributions and outflow in central eastern China during MTX2006”, Atmos. Chem. Phys., 8, 7335-7351 (2008).
• 30. Kondo, Y., Y. Morino, M. Fukuda, Y. Kanaya, Y. Miyazaki, N. Takegawa, H. Tanimoto, R. McKenzie, P. Johnston, D.R. Blake, T. Murayama, and M. Koike, “Formation and transport of oxidized reactive nitrogen, ozone, and secondary organic aerosol in Tokyo”, J. Geophys. Res., 113, D21310, doi:10.1029/2008JD010134 (2008).
• 29. Fu, P., K Kawamura, K. Okuzawa, S. G. Aggarwal, G. Wang, Y. Kanaya, Z. Wang, “Organic molecular compositions and temporal variations of summertime mountain aerosols over Mt. Tai, North China Plain”, J. Geophys. Res., 113, D19107,　doi:10.1029/2008JD009900 (2008).
• 28. Irie, H., Y. Kanaya, H. Akimoto, H. Tanimoto, Z. Wang, J. F. Gleason, and E. J. Bucsela, “Validation of OMI tropospheric NO2 column data using MAX-DOAS measurements deep inside the North China Plain in June 2006”, Atmos. Chem. Phys, 8, 6577-6586 (2008).
• 27. Nakano, Y., H. Ukeguchi, T. Ishiwata, Y. Kanaya, H. Tachikawa, A. Ikeda, S. Sakaki, and M. Kawasaki, “Study of the temperature dependence of the reaction of NO3 with CH3I and the estimation of its impact on atmospheric iodine chemistry”, Bull. Chem. Soc. Japan, 81(8), 938-946 (2008)
• 26. Taketani, F., Y. Kanaya, H. Akimoto, “Kinetics of heterogeneous reaction of HO2 radical at ambient concentration levels with (NH4)2SO4 and NaCl aerosol particles”, J. Phys. Chem. A, 112 (11), 2370 -2377, doi:10.1021/jp0769936 (2008)
• 25. Kanaya, Y., M. Fukuda, H. Akimoto, N. Takegawa, Y. Komazaki, Y. Yokouchi, M. Koike, Y. Kondo, “Urban photochemistry in central Tokyo: 2. Rates and regimes of oxidant (O3 + NO2) production”, J. Geophys. Res., 113, D06301, doi:10.1029/2007JD008671 (2008)
• 24. Inomata, S., H. Tanimoto, S. Kameyama, U. Tsunogai, H. Irie, Y. Kanaya, and Z. Wang, “Technical Note: Determination of formaldehyde mixing ratios in air with PTR-MS: Laboratory experiments and field measurements”, Atmos. Chem. Phys., 8, 273-284 (2008)
• 23. Irie, H., Y. Kanaya, H. Akimoto, H. Iwabuchi, A. Shimizu, and K. Aoki, “First retrieval of tropospheric aerosol profiles using MAX-DOAS and comparison with lidar and sky radiometer measurements”, Atmos. Chem. Phys., 8, 341-350 (2008)
• 22. Kanaya, Y., R. Cao, H. Akimoto, M. Fukuda, Y. Komazaki, Y. Yokouchi, M. Koike, H. Tanimoto, N. Takegawa, Y. Kondo, “Urban photochemistry in central Tokyo: 1. Observed and modeled OH and HO2 radical concentrations during the winter and summer of 2004”, J. Geophys. Res., 112, D21312, doi:10.1029/2007JD008670 (2007).
• 21. Kanaya, Y., R. Cao, S. Kato, Y. Miyakawa, Y Kajii, H. Tanimoto, Y. Yokouchi, M. Mochida, K. Kawamura, and H. Akimoto, “Chemistry of OH and HO2 radicals observed at Rishiri Island, Japan, in September 2003: Missing daytime sink of HO2 and positive nighttime correlations with monoterpenes”, J. Geophys. Res., 112, D11308, doi:10.1029/2006JD007987 (2007).
• 20. Qi, B., Y. Kanaya, A. Takami, and S. Hatakeyama, S. Kato, Y. Sadanaga, H. Tanimoto, Y. Kajii, Diurnal peroxy radical chemistry at a remote coastal site over the sea of Japan, J. Geophys. Res., 112, D17306, doi:10.1029/2006JD008236 (2007).
• 19. Kanaya, Y., H. Tanimoto, J. Matsumoto, H. Furutani, S. Hashimoto, Y. Komazaki, S. Tanaka, Y. Yokouchi, S. Kato, Y. Kajii, H. Akimoto, “Diurnal variations in H2O2, O3, PAN, HNO3 and aldehyde concentrations and NO/NO2 ratios at Rishiri Island, Japan: Potential influence from iodine chemistry”, Science of the Total Environment, 376, 185-197 (2007).
• 18. Wagner, T., J. P. Burrows, T. Deutschmann, B. Dix, C. von Friedeburg, U. Frieß, F. Hendrick, K.-P. Heue, H. Irie, H. Iwabuchi, Y. Kanaya, J. Keller, C. A. McLinden, H. Oetjen, E. Palazzi, A. Petritoli, U. Platt, O. Postylyakov, J. Pukite, A. Richter, M. van Roozendael, A. Rozanov, V. Rozanov, R. Sinreich, S. Sanghavi, and F. Wittrock, “Comparison of box-air-mass-factors and radiances for multiple-axis differential optical absorption spectroscopy (MAX-DOAS) geometries calculated from different UV/visible radiative transfer models”, Atmos. Chem. Phys., 7, 1809-1833 (2007).
• 17. Takegawa, N., T. Miyakawa, Y. Kondo, D. R. Blake, Y. Kanaya, M. Koike, M. Fukuda, Y. Komazaki, Y. Miyazaki, A. Shimono, and T. Takeuchi, “Evolution of submicron organic aerosol in polluted air exported from Tokyo”, Geophys. Res. Lett., 33, L15814, doi:10.1029/2006GL025815. (2006).　
• 16. Kanaya, Y. and H. Akimoto, “Gating a channel photomultiplier using a fast high voltage switch: Reduction of afterpulse rates in a laser-induced fluorescence instrument for measurement of atmospheric OH radical concentrations”, Appl. Opt., 45, 1254-1259 (2006).
• 15. Yokouchi, Y., F. Hasebe, M. Fujiwara, H. Takashima, M. Shiotani, N. Nishi, Y. Kanaya, S. Hashimoto, P. Fraser, D. Toom-Sauntry, H. Mukai, Y. Nojiri, “Correlations and emission ratios among bromoform, dibromochloromethane, and dibromomethane in the atmosphere”, J. Geophys. Res., 110, D23309, doi:10.1029/2005JD006303. (2005).
• 14. Sadanaga, Y., A. Yoshino, K. Watanabe, A. Yoshioka, Y. Wakazono, Y. Kanaya, and Y. Kajii, “Development of a Measurement System of OH Reactivity in the Atmosphere by Using a Laser-Induced Pump and Probe Technique”, Rev. Sci. Instrum., 75(8), 2648-2655, (2004).
• 13. Sadanaga, Y., A. Yoshino, S. Kato, A. Yoshioka, K. Watanabe, Y. Miyakawa, I. Hayashi, M. Ichikawa, J. Matsumoto, A. Nishiyama, N. Akiyama, Y. Kanaya, and Y. Kajii, “The importance of NO2 and volatile organic compounds in the urban air from the viewpoint of the OH reactivity”, Geophys. Res. Lett., 31, L08102, doi:10.1029/2004GL019661. (2004).
• 12. Morita, A., Y. Kanaya, and J. S. Francisco, “Uptake of the HO2 Radical by Water: Molecular Dynamics Calculations and Their Implications to Atmospheric Modeling”, J. Geophys. Res., 109, D09201, doi:10.1029/2003JD004240 (2004).
• 11. Toyota, K., Y. Kanaya, M. Takahashi, and H. Akimoto, “ A box model study on photochemical interactions between VOCs and reactive halogen species in the marine boundary layer”, Atmos. Chem. Phys., 4, 1961-1987 (2004).
• 10. Kanaya, Y., Y. Kajii, and H. Akimoto, “Solar actinic flux and photolysis frequency determinations by radiometers and a radiative transfer model at Rishiri Island: Comparisons, cloud effects, and detection of an aerosol plume from Russian forest fires”, Atmospheric Environment, 37(18), 2463-2475 (2003).
• 9. Kanaya, Y., and H. Akimoto, “Direct measurements of HOx radicals in the marine boundary layer: Testing current tropospheric chemistry mechanism”, The Chemical Record, 2, 199-211 (2002).
• 8. Kanaya, Y., Y. Yokouchi, J. Matsumoto, K. Nakamura, S. Kato, H. Tanimoto, H. Furutani, K. Toyota, and H. Akimoto, “Implications of iodine chemistry for daytime HO2 levels at Rishiri Island”, Geophys. Res. Lett., 29 (8), 10.1029/2001GL014061 (2002).
• 7. Kanaya, Y., J. Matsumoto, and H. Akimoto, “Photochemical ozone production at a subtropical island of Okinawa, Japan: Implications from the simultaneous observations of HO2 radical and NOx concentrations”, J. Geophys. Res., 107(D19), 4368, doi:10.1029/2001JD000858 (2002).
• 6. Kanaya, Y., K. Nakamura, S. Kato, J. Matsumoto, H. Tanimoto, and H. Akimoto, “Nighttime variations in HO2 radical mixing ratios at Rishiri Island observed with elevated monoterpene mixing ratios”, Atmos. Environ. 36 (31), 4929-4940 (2002).
• 5. Kanaya, Y., Y. Sadanaga, J. Hirokawa, Y. Kajii, and H. Akimoto, “Development of a ground-based LIF instrument for measuring tropospheric HOx radicals: Instrumentation and calibrations”, J. Atmos. Chem., 38, 73-110 (2001).
• 4. Kanaya, Y., Y. Sadanaga, K. Nakamura, and H. Akimoto, “Behavior of OH and HO2 radicals during the Observations at a Remote Island of Okinawa (ORION99) field campaign: 1. Observation using a laser-induced fluorescence instrument”, J. Geophys. Res., 106, 24,197-24,208 (2001).
• 3. Kanaya, Y., J. Matsumoto, S. Kato, and H. Akimoto, “Behavior of OH and HO2 radicals during the Observations at a Remote Island of Okinawa (ORION99) field campaign: 2. Comparison between observations and calculations”, J. Geophys. Res., 106, 24,209-24,223 (2001).
• 2. Kanaya, Y., Y. Sadanaga, J. Matsumoto, U. K. Sharma, J. Hirokawa, Y. Kajii, and H. Akimoto, “Daytime HO2 concentration at Oki Island, Japan, in summer 1998: Comparison between measurement and theory”, J. Geophys. Res., 105, 24,205-24,222 (2000).
• 1. Kanaya, Y., Y. Sadanaga, J. Matsumoto, U. K. Sharma, J. Hirokawa, Y. Kajii, and H. Akimoto, “Nighttime observation of the HO2 radical by an LIF-based instrument at Oki island, Japan, and its possible origins”, Geophys. Res. Lett., 26, 2179-2182 (1999).

• August 2010:
  MR10-04 leg.1, R/V Mirai, From Shimonoseki to Yokohama, setup MAX-DOAS
• February 2009:
  KY09-01 leg 0, R/V Kaiyo, From Yokohama to Guam, setup MAX-DOAS
• May-Jun. 2010:
  Intensive field campaign at Rudong, Jiangsu, China (co-organizer)
• February 2009 - :
  Setup/maintain JA building observatory at Fukue Island for ozone and aerosol studies
• March 2007 - March 2011:
  Network continuous measurements of NO2 columns and AOD in east Asia/Russia
• Sep.-Oct. 2007:
  Intensive field campaign at Mangshan, Beijing, China (co-organizer)
• June 2006:
  Intensive field campaign at Taishan, Shandong, China (co-organizer)
• July 2005:
  International blind intercomparison of OH/HO2 instruments (HOxCOMP2005) in Juelich, Germany (as a PI of Japanese group)
• Jan.-Feb., Jul.-Aug., 2004:
  IMPACT field campaigns in Tokyo (responsible for OH/HO2 measurements)
• Sep. 2003:
  2nd Intensive field campaign at Rishiri Island, Japan (co-organizer, OH/HO2 measurements)
• Jun. 2000:
  1st Intensive field campaign at Rishiri Island, Japan (co-organizer, OH/HO2 measurements)
• Jul.-Aug. 1999:
  Intensive field campaign at Okinawa Island, Japan (organizer, OH/HO2 measurements)
• Jul.-Aug. 1998:
  Intensive field campaign at Oki Island, Japan (organizer, HO2 measurements)
• Jul.-Aug. 1997:
  Intensive field campaign at Okinawa Island, Japan (Ozone sonde team leader)
• Jul.-Aug. 1996:
  Intensive field campaign at Okinawa Island, Japan (participant)

• JSPS Bilateral Joint Research Project (Russia), 2012-14: Comparison and harmonization of ground-based remote spectroscopy methods for sophisticated observations of atmospheric trace composition (Principal Investigator)
• Grant-in-Aid for Scientific Research (A)（2011-2013）:　Roles of aerosols upon oceanic biological pump (Collaborator)
• The Environmental Research and Technology Development Fund, the Ministry of the Environment Japan, S-7-1 (FY2009-2013): Quantification of Ozone and Aerosol Pollution in East Asia and the Hemisphere Synthesizing Numerical Modeling and Observation (Principal Investigator)
• Grant-in-Aid for Scientific Research (B)（2010-2012）:　Changes in hygroscopicity and optical properties of organic aerosol particles upon heterogeneous oxidation by HOx radicals (Principal Investigator)
• Japan EOS Promotion Program, MEXT, “Developing a MAX-DOAS observation network in East Asia and Russia”, (2006-2011)
• ACCENT (Atmospheric Composition Change: The European Network of Excellence): Associate (PI) for Activity 11: Quality Assurance/Quality control (lead by Forschungszentrum Juelich, Germany): OH intercomparison (HOxCOMP2005) and related works (2004-2008)
• Grants-in-Aid for Scientific Research (C), MEXT, “Measurement of uptake coefficients of HO2 radicals on the model particles in the troposphere with a single component and on the authentic atmospheric particles” (2007-2009)
• Grant-in-Aid for Young Scientists (B), MEXT, “Investigation on the importance of iodine chemistry by ultra-sensitive measurements of OH and HO2 radicals in the marine boundary layer” (2002-2003)
• Grant for Environmental Research Projects, The Sumitomo Foundation, “Development of an instrument for measuring atmospheric IO radicals by the vacuum-ultra violet resonance fluorescence technique”, (2002)

• Professor Zifa Wang's group, Insitute of Atmospheric Physics, Chinese Academy of Sciences, Beijing, China. since 2004
• Professor Wenqing Liu and Pinhua Xie, Anhui Institute of Optics and Fine Mechanics, Hefei, China. since 2007
• Professor Young-Joon Kim, Gwangju Institute of Science and Technology (GIST), Gwangju, Korea. since 2007
• Professor Evgeny I. Grechko, Institute of Atmospheric Physics, Russian Academy of Sciences, Moscow/Zvenigorod, Russia. since 2007
• Professor Mikhail V. Panchenko, Institute of Atmospheric Optics, Russian Academy of Sciences Siberian Branch, Tomsk, Russia. since 2007