Research

EDevelopment of highly sensitive instruments for measuring trace gases and aerosols and applications to atmospheric measurements

ELaboratory studies of photochemical processes in the atmosphere using spectroscopic techniques




















Atmospheric aerosol particles affect the Earthfs radiative energy balance directly by scattering and absorbing incident light. Therefore, accurate determination of optical properties of atmospheric aerosols is essential. Optical properties of atmospheric aerosols have commonly been determined by measuring scattering coefficients using integrated nephelometers and absorption coefficients using filter-based photometers such as the particle/soot absorption photometer (PSAP). Previous studies suggest that integrated nephelometers may underestimate scattering coefficient because commercially available nephelometers cannot detect light scattered from aerosols at angles very close to 0 and 180 degrees due to geometrical constraints. Since the filter based photometers evaluate absorption coefficient by collecting aerosol particles onto a filter substrate followed by measurement of light transmittance, this technique may have relatively large uncertainty due to multiple scattering and the change of physical and chemical properties of the aerosols on the filter. In this work, we have applied spectroscopic techniques involving cavity ring-down spectroscopy (CRDS) and photoacoustic spectroscopy (PAS) to measure aerosol extinction and absorption coefficients on laboratory and field researches. These techniques will especially be powerful tools to determine the optical properties of light absorbing organic aerosols (brown carbon) and black carbon particle coated with organics and sulfate compounds.


Publications

1)"Atmospheric lifetime of SF5CF3"
K. Takahashi, T. Nakayama, Y. Matsumi, S. Solomon, T. Gejo, E. Shigemasa, and T. J. Wallington, Geophys. Res. Lett., 29, 7-1-4, doi:10.1029/2002GL015356 (2002)

2)"Vacuum ultraviolet laser-induced fluorescence detection of O(1S) atom produced in the 193 nm photolysis of ozone"
K. Takahashi, T. Nakayama, and Y. Matsumi, J. Phys. Chem., A107, 9368-9373 (2003)

3)"Quantum yield for N(4S) production in the ultraviolet photolysis of N2O"
T. Nakayama, K. Takahashi, and Y. Matsumi, N. Taniguchi, and S. Hayashida, J. Geophys. Res., 108(D21), 4668, ACH6-1-7, 10.1029/2003JD003709 (2003)

4)"Hydrogen atom formation in the photolysis of acetone at 193 nm"
K. Takahashi, T. Nakayama, Y. Matsumi, and Y. Osamura, J. Phys. Chem., A108, 8002-8008 (2004)

5)"Reaction Kinetics of O(1S) atom with atmospheric molecules"
T. Nakayama, K. Takahashi, and Y. Matsumi, Chem. Phys. Lett., 398, 163-167 (2004)

6)"Nitrate radical quantum yield from peroxyacetyl nitrate photolysis"
B. A. Flowers, M. A. Angerhofer, W. R. Simpson, T. Nakayama, and Y. Matsumi, J. Phys. Chem., A109, 2552-2558 (2005)

7)"Quantum yield for hydrogen atom formation from H2O2 photolysis in the range 193-240 nm"
T. Nakayama, K. Takahashi, and Y. Matsumi, Int. J. Chem. Kinet., 37, 751-754 (2005)

8)"Atmospheric chemistry of CxF2x+1CH=CH2 (x = 1, 2, 4, 6, 8): Kinetics of gas-phase reactions with Cl atoms, OH radicals, and O3"
M. P. S. Andersen, O. J. Nielsen, A. Toft, T. Nakayama, Y. Matsumi, R. L. Waterland, R. C. Buck, M. D. Hurley, and T. J. Wallington, J. Photochem. Photobiol. A: Chem., 176, 124-128 (2005)

9)"Atmospheric chemistry of CH3CHF2 (HFC-152a): Kinetics, mechanisms, and products of Cl atom and OH radical initiated oxidation in presence and absence of NOx"
F. Taketani, T. Nakayama, K. Takahashi, Y. Matsumi, M. D. Hurley, T. J. Wallington, A. Toft, and M. P. S. Andersen, J. Phys. Chem., A109, 9061-9069 (2005)

10)"N(4S) formation following 193.3 nm ArF laser irradiation of NO and NO2 and its application to kinetics studies of N(4S) reactions with NO and NO2"
T. Nakayama, K. Takahashi, Y. Matsumi, and K. Shibuya J. Phys. Chem., A109, 10,897-10,902 (2005)

11)"Thermalization cross sections of suprathermal N(4S) atoms in collisions with atmospheric molecules"
T. Nakayama, K. Takahashi, and Y. Matsumi, Geophys. Res. Lett., 32, L24803, doi:10.1029/2005GL024609 (2005)

12)"Laboratory study of O(1S) formation process in the photolysis of O3 and its atmospheric implications"
T. Nakayama, K. Takahashi, Y. Matsumi, and H. Fujiwara, J. Atmos. Chem., 53, 107-122 (2006)

13)"Atmospheric chemistry of CF3CH=CH2 and C4F9CH=CH2: Products of the gas-phase reactions with Cl atoms and OH radicals"
T. Nakayama, K. Takahashi, Y. Matsumi, A. Toft, M. P. S. Andersen, O. J. Nielsen, R. L. Waterland, R. C. Buck, M. D. Hurley, and T. J. Wallington, J. Phys. Chem., A111, 909-915 (2007)

14)"Vacuum ultraviolet laser-induced fluorescence kinetic study of the reactions of Cl atoms with fluoroalkenes (CxF2x+1CH=CH2, x=1,2,4,6, and 8) at low pressures"
K. Takahashi, E. Iwasaki, T. Nakayama, Y. Matsumi, and T. J. Wallington Int. J. Chem. Kinet., 39, 328-332 (2007)

15)"A gas-phase kinetic study of the reaction between bromine monoxide and methylperoxy radicals at atmospheric temperatures"
S. Enami, T. Yamanaka, T. Nakayama, S. Hashimoto, M. Kawasaki, D. E. Shallcross, Y. Nakano, and T. Ishiwata, J. Phys. Chem., A111, 3342-3348 (2007)

16)"Buffer-gas pressure broadening for the (0 00 3) - (0 00 0) band of N2O measured with continuous-wave cavity ring-down spectroscopy"
T. Nakayama, H. Fukuda, A. Sugita, S. Hashimoto, M. Kawasaki, S. Aloisio, I. Morino, and G. Inoue, Chem. Phys., 334, 196-203 (2007)

17)"A fiber-optic ring-down spectroscopy using a tunable picosecond gain-switched diode laser"
M. Andachi, T. Nakayama, M. Kawasaki, S. Kurokawa, and H. P. Loock, Appl. Phys. B, 88, 131-135 (2007)

18)"Measurements of the 3v3 band of 14N15N16O and 15N14N16O using continuous-wave cavity ring-down spectroscopy"
T. Nakayama, H. Fukuda, T. Kamikawa, A. Sugita, M. Kawasaki, I. Morino, and G. Inoue, Appl. Phys. B, 88, 137-140 (2007)

19)"Effective interaction energy of water dimer at room temperature: An experimental and theoretical study"
T. Nakayama, H. Fukuda, T. Kamikawa, Y. Sakamoto, A. Sugita, M. Kawasaki, T. Amano, H. Sato, S. Sakaki, I. Morino, and G. Inoue, J. Chem. Phys., 127, 134302 (2007)

20)"Kinetics and mechanism of the reaction of chlorine atoms with n-pentanal"
E. Iwasaki, T. Nakayama, Y. Matsumi, K. Tsakahashi,T.J. Wallington, M. D. Hurley, and E. Kaiser, J. Phys. Chem. A, A112, 1741-1746 (2008)

21)"Nighttime measurement of ambient N2O5, NO2, NO, and O3 in a sub-urban area, Toyokawa, Japan"
T. Nakayama, T. Ide, F. Taketani, M. Kawai, K. Takahashi, and Y. Matsumi, Atmos. Environ., 42, 1995-2006 (2008)

22)"Approach to thermal equilibrium in atomic collisions"
P. Zhang, V. Kharchenko, A. Dalgarno, Y. Matsumi, T. Nakayama, and K. Takahashi, Phys. Rev. Lett., 100, 103001 (2008)

23)"Thermal decomposition rate of N2O5 measured by cavity ring-down spectroscopy"
T. Ide, T. Nakayama, K. Takahashi, and Y. Matsumi, Int. J. Chem. Kinet., 40, 679-684 (2008)

24)"Optical properties and chemical compositions of iodine-containing aerosols produced from the atmospheric photolysis of methylene iodide in the presence of ozone"
Y. Sakamoto, A. Yabushita, M. Kawasaki, T. Nakayama, and Y. Matsumi, Bull. Chem. Soc. Jpn., 82, 910-913 (2009)

25)"Stabilization of the mass absorption cross section of black carbon for filter-based absorption photometry by the use of a heated inlet"
Y. Kondo, L. Sahu, M. Kuwata, Y. Miyazaki, N. Takegawa, N. Moteki, J. Imaru, S. Han, T. Nakayama, N. T. Kim Oanh, M. Hu, Y. J. Kim, and K. Kita, Aerosol Sci. Technol., 43, 741-756 (2009)

26)"Buffer-gas pressure broadening for the third overtone band of NO measured with continuous-wave cavity ring-down spectroscopy"
Y. Sakamoto, D. Yamano, T. Nakayama, M. Kawasaki, I. Morino, G. Inoue, Chem. Lett., 38, 662-663 (2009)

27)"Atmospheric Chemistry of BrO Radicals: Kinetics of the Reaction with C2H5O2 Radicals at 233-333 K"
Y. Sakamoto, D. Yamano, T. Nakayama, S. Hashimoto, M. Kawasaki, T. J. Wallington, S. Miyano, K. Tonokura, and K. Takahashi J. Phys. Chem., A113, 10231-10237 (2009)

28)"Size-dependent correction factors for absorption measurements using filter-based photometers: PSAP and COSMOS"
T. Nakayama, Y. Kondo, N. Moteki, L. K. Sahu, T. Kinase, K. Kita, and Y. Matsumi, J. Aerosol Sci. , 41, 333-343 (2010)

29)"Radiative transfer modeling of filter-based measurements of light absorption by particles: Importance of particle size dependent penetration depth"
N. Moteki, Y. Kondo, T. Nakayama, K. Kita, L. K. Sahu, T. Ishigai, T. Kinase, and Y. Matsumi, J. Aerosol Sci. , 41, 401-412 (2010)

30)"Measurements of aerosol optical properties in central Tokyo during summertime using cavity ring-down spectroscopy: Comparison with conventional techniques"
T. Nakayama, R. Hagino, Y. Matsumi, Y. Sakamoto, M. Kawasaki, A. Yamazaki, A. Uchiyama, R. Kudo, N. Moteki, Y. Kondo, and K. Tonokura, Atmos. Environ. , 44, 3034-3042 (2010)

31)"Fluorescence detection of atmospheric nitrogen dioxide using a blue light-emitting diode as an excitation source"
Y. Matsumi, F. Taketani, K. Takahashi, T. Nakayama, M. Kawai, and Y. Miyao, Appl. Opt. , 49, 3762-3767 (2010)

32)"PLP-LIF study of the reaction of chlorine atoms with C2H2, C2H4, and C3H6 in 2-100 Torr of N2 diluent at 295 K"
E. Iwasaki, H. Chiba, T. Nakayama, Y. Matsumi, and T. J. Wallington, Chem. Phys. Lett. , 494, 174-178 (2010)

33)"Laboratory studies on optical properties of secondary organic aerosols generated during the photooxidation of toluene and the ozonolysis of alpha-pinene"
T. Nakayama, Y. Matsumi, K. Sato, T. Imamura, A. Yamasaki, and A. Uchiyama, J. Geophys. Res., 115, D24204, doi:10.1029/2010JD014387 (2010)

34)"Characterization of aerosol particles in the Tokyo metropolitan area using two different particle mass spectrometers"
J.-H. Xing, K. Takahashi, A. Yabushita, T. Kinugawa, T. Nakayama, Y. Matsumi, K. Tonokura, A. Takami, T. Imamura, K. Sato, M. Kawasaki, T. Hikida, and A. Shimono, Aerosol Sci. Technol. , 45, 315-326 (2011)

35)"Observation of carbon and oxygen isotopic compositions of CO2 at an urban cite in Nagoya using Mid-IR laser absorption spectroscopy"
R. Wada, J. K. Pearce, T. Nakayama, Y. Matsumi, T. Hiyama, G. Inoue, and T. Shibata, Atmos. Environ. , 45, 1168-1174 (2011)

36)"Comparison of laser-induced fluorescence and chemiluminescence measurements of NO2 at an urban site"
H. Suzuki, Y. Miyao, T. Nakayama, J. K. Pearce, Y. Matsumi, K. Takahashi, K. Kita, and K. Tonokura, Atmos. Environ. , 45, 6233-6240 (2011)

37)"Wavelength dependence of refractive index of secondary organic aerosols generated during the ozonolysis and photooxidation of alpha-pinene"
T. Nakayama, K. Sato, Y. Matsumi, T. Imamura, A. Yamasaki, and A. Uchiyama, SOLA, 8, 119-124 (2012)

38)"Observation of new particle formation over a mid-latitude forest facing the North Pacific"
Y. Han, Y. Iwamoto, T. Nakayama, K. Kawamura, T. Hussein and M. Mochida, Atmos. Environ., 64, 77-84 (2013)

39)"Wavelength and NOx dependent complex refractive index of SOAs generated from the photooxidation of toluene"
T. Nakayama, K. Sato, Y. Matsumi, T. Imamura, A. Yamasaki, and A. Uchiyama, Atmos. Chem. Phys., 13, 531-545 (2013)

40)"Isotopic Variations Associated with North-South Displacement of the Baiu Front"
N. Kurita, Y. Fujiyoshi, R. Wada, T. Nakayama, Y. Matsumi, T. Hiyama, and K. Muramoto, SOLA, 9, 187-190 (2013)

41)"Formation and evolution of biogenic secondary organic aerosol over a forest site in Japan"
Y. Han, Y. Iwamoto, T. Nakayama, K. Kawamura, and M. Mochida, J. Geophys. Res. Atmos., 119, 259-273, doi:10.1002/2013JD020390 (2014)

42)"Measurement of the light absorbing properties of diesel exhaust particles using a three-wavelength photoacoustic spectrometer"
X. Guo, T. Nakayama, H. Yamada, S. Inomata, K. Tonokura, and Y. Matsumi, Atmos. Environ., 94, 428-437 (2014)

43)"Characteristics of atmospheric aerosols containing heavy metals measured on Fukue Island, Japan"
T. Hidemori, T. Nakayama, Y. Matsumi, T. Kinugawa, A. Yabushita, M. Ohashi, T. Miyoshi, S. Irei, A. Takami, N. Kaneyasu, A. Yoshino, R. Suzuki, Y. Yumoto, and S. Hatakeyama, Atmos. Environ., 97, 447-455 (2014)

44)"Properties of light-absorbing aerosols in the Nagoya urban area, Japan, in August 2011 and January 2012: Contributions of brown carbon and lensing effect"
T. Nakayama, Y. Ikeda, Y. Sawada, Y. Setoguchi, S. Ogawa, K. Kawana, M. Mochida, F. Ikemori, K. Matsumoto, and Y. Matsumi, J. Geophys. Res. Atmos., 119, 12721-12739, doi:10.1002/2014JD021744 (2014)

45)"Characterization of a three wavelength photoacoustic soot spectrometer (PASS-3) and a photoacoustic extinctiometer (PAX)"
T. Nakayama, H. Suzuki, S. Kagamitani, Y. Ikeda, A. Uchiyama, and Y. Matsumi, J. Meteor. SocDJapan, 93, 285-308 (2015)

46)"Atmospheric circulation controls on the inter-annual variability in precipitation isotope ratio in Japan"
N. Kurita, Y. Fujiyoshi, T. Nakayama, Y. Matsumi, and H. Kitagawa, Clim. Past, 11, 339-353 (2015)

47)"Evaluation of MAX-DOAS aerosol retrievals by coincident observations using CRDS, lidar, and sky radiometer in Tsukuba, Japan"
H. Irie, T. Nakayama, A. Shimizu, A. Yamazaki, T. Nagai, A. Uchiyama, Y. Zaizen, S. Kagamitani, and Y. Matsumi, Atmos. Meas. Tech., 8, 2775-2788 (2015)

48)"Complex refractive index of secondary organic aerosol generated from isoprene/NOx photooxidation in the presence and absence of SO2"
T. Nakayama, K. Sato, M. Tsuge, T. Imamura, and Y. Matsumi, J. Geophys. Res. Atmos., 120, 7777-7787, doi:10.1002/2014JD021744 (2015)

49)"In situ measurement of CO2 and water vapor isotopic compositions at a forest site using mid-infrared laser absorption spectroscopy"
R. Wada, Y. Matsumi, S. Takanashi, Y. Nakai, T. Nakayama, M. Ouchi, T. Hiyama, Y. Fujiyoshi, T. Nakano, N. Kurita, K. Muramoto, and N. Kodama, Isot. Environ. Health Stud., 52, 603-618 (2016)

50)"Total OH reactivity measurement in a BVOC dominated temperate forest during a summer campaign, 2014"
S. Ramasamy, A. Ida, C. Jones, S. Kato, H. Tsurumaru, I. Kishimoto, S. Kawasaki, Y. Sadanaga, Y. Nakashima, T. Nakayama, Y. Matsumi, M. Mochida, S. Kagami, Y. Deng, S. Ogawa, K. Kawana, and Y. Kajii, Atmos. Environ., 131, 41-54 (2016)

51)"Design and characterization of a novel single-particle polar nephelometer"
M. Nakagawa, T. Nakayama, H. Sasago, S. Ueda, D. S. Venables, and Y. Matsumi, Aerosol Sci. Technol., 50, 392-404 (2016)

52)"Light absorption and morphological properties of soot-containing aerosols observed at an East Asian outflow site, Noto Peninsula, Japan"
S. Ueda, T. Nakayama, F. Taketani, K. Adachi, A. Matsuki, Y. Iwamoto, and Y. Matsumi, Atmos. Chem. Phys., 16, 2525-2541 (2016)

53)"Hygroscopicity and CCN activity of atmospheric aerosol particles and their relation to organics: Characteristics of urban aerosols in Nagoya, Japan"
K. Kawana, T. Nakayama, and M. Mochida, J. Geophys. Res. Atmos., 121, 4100-4121, doi:10.1002/2015JD023213 (2016)

54)"Hygroscopicity of aerosol particles and CCN activity of nearly-hydrophobic particles in the urban atmosphere over Japan during summer"
S. Ogawa, Y. Setoguchi, K. Kawana, T. Nakayama, Y. Ikeda, Y. Sawada, Y. Matsumi, M. Mochida, J. Geophys. Res. Atmos., 121, 7215-7234, doi:10.1002/2015JD024636 (2016)

55)"Property of black carbon particles measured by a laser-induced incandescence technique in the spring at Noto Peninsula, Japan"
F. Taketani, Y. Kanaya, T. Nakayama, S. Ueda, Y. Matsumi, Y. Sadanaga, Y. Iwamoto, A. Matsuki, Earozoru Kenkyu, 31,194-202 (2016) (Japanese with English abstract)

56)"Hygroscopicity and cloud condensation nucleus activity of forest aerosol particles during summer in Wakayama, Japan"
K. Kawana, T. Nakayama, N. Kuba, and M. Mochida, J. Geophys. Res. Atmos., 122, 3042-3064, doi:10.1002/2016JD025660 (2017)

57)"Continuous measurements of stable isotopes of carbon dioxide and water vapor in an urban atmosphere: isotopic variations associated with meteorological conditions"
R. Wada, Y. Matsumi, T. Nakayama, T. Hiyama, Y. Fujiyoshi, N. Kurita, K. Muramoto, S. Takanashi, N. Kodama, Y. Takahashi, Isot. Environ. Health Stud., 53, 646-659, doi:10.1080/10256016.2017.1348351 (2017)

58)"Ground-based measurement of column-averaged mixing ratios of methane and carbon dioxide in the Sichuan Basin of China by a desktop optical spectrum analyzer"
X. -C. Qin, T. Nakayama, Y. Matsumi, M. Kawasaki, A. Ono, S. Hayashida, R. Imasu, L. -P. Lei, I. Murata, T. Kuroki, M. Ohashi, J. Appl. Remote Sens., 12, 012002, doi:10.1117/1.JRS.12.012002 (2017)

59)"Development and evaluation of a palm-sized optical PM2.5 sensor"
T. Nakayama, Y. Matsumi, K. Kawahito, Y. Watabe, Aerosol Sci. Technol., **, **-**, doi:10.1080/02786826.2017.1375078 (in press)

60)"Ambient measurements and survey of the sources of gaseous glyoxal in suburban site in Tokyo during summer season"
Y. Nakashima, H. Tsurumaru, S. Ramasamy, Y. Sakamoto, S. Kato, Y. Sadanaga, T. Nakayama, Y. Miyazaki, T. Mochizuki, R. Wada, K. Matsuda, Y. Kajii, J. Jpn. Soc. Atmos. Environ., **,**-** (in press) (Japanese with English abstract)

61)"Missing ozone-induced potential aerosol formation in a suburban deciduous forest"
T. Nakayama, Y. Kuruma, Y. Matsumi, Y. Morino, K. Sato, H. Tsurumaru, S. Ramasamy, Y. Sakamoto, S. Kato, Y. Miyazaki, T. Mochizuki, K. Kawamura, Y. Sadanaga, Y. Nakashima, K. Matsuda, Y. Kajii, Atmos. Environ., 171, 91-97, doi:10.1016/j.atmosenv.2017.10.014 (2017)


Reports

1)"Particle effective density measurements using a DMA-APM-CPC system in Nagoya, Japan: Estimation of mixing state and shape"
T. Nakayama, Y. Sawada, Y. Ikeda, Y. Matsumi, Y. Setoguchi, K. Kawana, and M. Mochida,Technical Report of the Meteorological Research Institute, International Symposium on Aerosol Studies Explored by Electron Microscopy, 68, 48-49 (2013)

2)"Measurements of light absorption enhancement of black carbon using a photoacoustic spectrometer in Nagoya, Japan"
T. Nakayama, Y. Ikeda, Y. Sawada, Y. Matsumi, Y. Setoguchi, K. Kawana, and M. Mochida,Technical Report of the Meteorological Research Institute, International Symposium on Aerosol Studies Explored by Electron Microscopy, 68, 50-52 (2013)

3)"Measuring methane with a simple open-path gas sensor"
Y. Matsumi, T. Hidemori, T. Nakayama, R. Imasu, and S. K. Dhaka, SPIE Newsroom, doi:10.1117/2.1201601.006283 (2016)


Review

1)"Light absorption properties of organic aerosols"
T. Nakayama, Earozoru Kenkyu, 27, 13-23 (2012) (Japanese with English abstract)


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