Zobrazeno 1 - 10
of 201
pro vyhledávání: '"Kazuo, OSADA"'
Publikováno v:
Asian Journal of Atmospheric Environment, Vol 14, Iss 2, Pp 155-169 (2020)
Expanding the use of a recently introduced low-cost particle monitor (DC1700 Dylos Air Quality Monitor) for sensing atmospheric PM2.5 requires comparison with data obtained using a certified method for PM2.5 based on appropriate atmospheric observati
Externí odkaz:
https://doaj.org/article/2a3836c6b9e246c0b46410bbda5e6940
Autor:
Qinping Song, Kazuo Osada
Publikováno v:
Atmospheric Environment: X, Vol 5, Iss , Pp - (2020)
Aerosol acidity plays an important role in atmospheric chemistry, but it is difficult to measure directly. To estimate aerosol acidity or in situ pH (pHISF), the forward mode of thermodynamic equilibrium models (Extended Aerosol Inorganic Model IV, E
Externí odkaz:
https://doaj.org/article/efe6b3d7ca554e90a46e47eee44d4acd
Autor:
Makiko Yamagami, Fumikazu Ikemori, Hironori Nakashima, Kunihiro Hisatsune, Kayo Ueda, Shinji Wakamatsu, Kazuo Osada
Publikováno v:
Atmosphere, Vol 12, Iss 5, p 590 (2021)
In Japan, various countermeasures have been undertaken to reduce the atmospheric concentration of fine particulate matter (PM2.5). We evaluated the extent to which these countermeasures were effective in reducing PM2.5 concentrations by analyzing the
Externí odkaz:
https://doaj.org/article/d0fdb3d348cc4f7480ea3bc130ee8d21
Autor:
Zhe Wang, Itsushi Uno, Kazuo Osada, Syuichi Itahashi, Keiya Yumimoto, Xueshun Chen, Wenyi Yang, Zifa Wang
Publikováno v:
Atmosphere, Vol 11, Iss 9, p 900 (2020)
Atmospheric ammonia (NH3) plays an important role in the formation of secondary inorganic aerosols, the neutralization of acid rain, and the deposition to ecosystems, but has not been well understood yet, especially over East Asia. Based on the GEOS-
Externí odkaz:
https://doaj.org/article/18855e28807346efb8ae33a94c8c7dde
Publikováno v:
Asian Journal of Atmospheric Environment, Vol 14, Iss 2, Pp 155-169 (2020)
Expanding the use of a recently introduced low-cost particle monitor (DC1700 Dylos Air Quality Monitor) for sensing atmospheric PM2.5 requires comparison with data obtained using a certified method for PM2.5 based on appropriate atmospheric observati
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::a49453732abca946e13c7aeb6e0589c3
http://asianjae.org/_common/do.php?a=current&b=11&bidx=2003&aidx=24358
http://asianjae.org/_common/do.php?a=current&b=11&bidx=2003&aidx=24358
Publikováno v:
Atmospheric Pollution Research. 11:393-400
Spheroidal carbonaceous particles (SCPs) are a type of carbonaceous fly ash resulting from high-temperature industrial fossil fuel combustion. In this study, we examined the fluxes, elemental compositions (18 elements including silicon, sulfur, and a
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::7cf1ae09faa8f317ae598e456cd11eaa
https://doi.org/10.1016/j.apr.2019.11.011
https://doi.org/10.1016/j.apr.2019.11.011
Autor:
Takashi Yamanouchi, Masanori Yabuki, Motohiro Hirabayashi, Kazuo Osada, Keiichiro Hara, Shuji Fujita, Fumio Nakazawa, Sumito Matoba
Publikováno v:
Environmental Science: Processes & Impacts. 22:2003-2022
Atmospheric sea-salt and halogen cycles play important roles in atmospheric science and chemistry including cloud processes and oxidation capacity in the Antarctic troposphere. This paper presents a review and summarizes current knowledge related to
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::08d1576f235cde7b1afbdc67e8c6a502
https://doi.org/10.1039/d0em00092b
https://doi.org/10.1039/d0em00092b
Publikováno v:
Antarctic Record, Vol 54, Iss special issue, Pp 731-759 (2010)
Tethered balloon-borne aerosol measurements were carried out at Syowa Station, Antarctica during the 46th Japanese Antarctic Research Expedition. CN concentration had a maximum in the summer, whereas the number concentrations of fine particles (D_p>0
Externí odkaz:
https://doaj.org/article/3fc6141ee6344dbfbcf7319083581750
Publikováno v:
Antarctic Record, Vol 54, Iss special issue, Pp 697-703 (2010)
Samples of fallen snow, drifting snow and deposited snow were obtained at Syowa Station from April 2003 to October 2006. Electroconductivity of the meltwater was measured. The electroconductivities of the samples for the fallen snow under weak wind c
Externí odkaz:
https://doaj.org/article/5e5afc006a3c4580ae2bd305ec3f2aa1
Autor:
Kazuo Osada, Keiichiro Hara, Masanori Yabuki, Chiharu Nishita-Hara, Hiroshi Kobayashi, Kazuhiko Miura, Sayako Ueda, Masahiko Hayashi, Gen Hashida, Masataka Shiobara, Makoto Wada, Takashi Yamanouchi
Publikováno v:
Antarctic Record, Vol 54, Iss special issue, Pp 449-464 (2010)
To investigate spatial and temporal variation of number-size distribution of atmospheric aerosol particles in the Antarctic Ocean, atmospheric observations were conducted on research vessels: Hakuho-maru, Tangaroa, and Umitaka-maru. Concentrations of
Externí odkaz:
https://doaj.org/article/180e93a97ddc4bb1be6415417e1fce5b