Search Results - "Okochi, Hiroshi"

Accumulation of microcapsules derived from coated fertilizer in paddy fields by Katsumi, Naoya, Kusube, Takasei, Nagao, Seiya, Okochi, Hiroshi

“…Japanese agriculture uses large amounts of plastics. Fertilizer-containing plastic microcapsules with a diameter of 2–5 mm (“coated fertilizer”) are not…”
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The role of coated fertilizer used in paddy fields as a source of microplastics in the marine environment by Katsumi, Naoya, Kusube, Takasei, Nagao, Seiya, Okochi, Hiroshi

“…Fixed-point and multi-point field survey was conducted to determine the actual contamination of the Japanese coast by microcapsules derived from coated…”
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The impact of air pollutants on rainwater chemistry during “urban‐induced heavy rainfall” in downtown Tokyo, Japan by Uchiyama, Ryunosuke, Okochi, Hiroshi, Katsumi, Naoya, Ogata, Hiroko

“…In order to clarify the impact of air pollution on the formation of sudden and locally distributed heavy rain in urban areas (hereafter UHR = urban‐induced…”
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Characteristics of Fog and Fog Collection with Passive Collector at Mt. Oyama in Japan by Wang, Yize, Okochi, Hiroshi, Igawa, Manabu

“…Fog is formed frequently in mountain areas and is apt to cause forest decline, because fog has highly concentrated air pollutants and is readily acidified. The…”
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Effects of changes in polycyclic aromatic hydrocarbons (PAHs) emissions and degradation on their concentrations in Tokyo from 2007 and 2016 by Shimada, Kojiro, Nohchi, Masayuki, Maeshima, Koji, Uchino, Tomonori, Kobayashi, Yusuke, Ono, Kazuki, Ogata, Hiroko, Katsumi, Naoya, Inazu, Koji, Okochi, Hiroshi

“…The concentrations of polycyclic aromatic hydrocarbons (PAHs) in aerosol were measured in Shinjuku, which is central Tokyo, Japan, for 10 years from 2007 to…”
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Airborne microplastics detected in the lungs of wild birds in Japan by Tokunaga, Yurika, Okochi, Hiroshi, Tani, Yuto, Niida, Yasuhiro, Tachibana, Toshio, Saigawa, Kazuo, Katayama, Kinya, Moriguchi, Sachiko, Kato, Takuya, Hayama, Shin-ichi

“…Microplastics (MPs) have been found in a wide range of animal species including humans. The detection of MPs in human lungs suggests that humans inhale…”
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Involvement of polycyclic aromatic hydrocarbons and endotoxin in macrophage expression of interleukin-33 induced by exposure to particulate matter by Ishihara, Nami, Okuda, Tomoaki, Hagino, Hiroyuki, Oguro, Ami, Tani, Yuto, Okochi, Hiroshi, Tokoro, Chiharu, Fujii-Kuriyama, Yoshiaki, Itoh, Kouichi, Vogel, Christoph F.A., Ishihara, Yasuhiro

“…Air pollutants are important factors that contribute to the development and/or exacerbation of allergic inflammation accompanied by asthma, but experimental…”
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Characteristics of trace metal concentration and stable isotopic composition of hydrogen and oxygen in “urban-induced heavy rainfall” in downtown Tokyo, Japan; The implication of mineral/dust particles on the formation of summer heavy rainfall by Uchiyama, Ryunosuke, Okochi, Hiroshi, Ogata, Hiroko, Katsumi, Naoya, Nakano, Takanori

“…To investigate the impact of mineral/road dust particles on the formation of sudden and locally distributed heavy rain in urban areas (hereafter, urban-induced…”
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Fungal spore involvement in the resuspension of radiocaesium in summer by Igarashi, Yasuhito, Kita, Kazuyuki, Maki, Teruya, Kinase, Takeshi, Hayashi, Naho, Hosaka, Kentaro, Adachi, Kouji, Kajino, Mizuo, Ishizuka, Masahide, Sekiyama, Tsuyoshi Thomas, Zaizen, Yuji, Takenaka, Chisato, Ninomiya, Kazuhiko, Okochi, Hiroshi, Sorimachi, Atsuyuki

“…We observed the atmospheric resuspension of radiocaesium, derived from the Fukushima Dai-ichi Nuclear Power Plant accident, at Namie, a heavily contaminated…”
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Preliminary insight into the relationship between bioaerosols and urban environment obtained from the COVID-19 self-quarantine period in the Tokyo metropolitan area by Murata, Kotaro, Okochi, Hiroshi, Kamogawa, Masashi

“…Abstract Anthropogenic activities and meteorological conditions influence the composition of urban bioaerosols. The COVID-19 epidemic drastically reduced…”
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Influence of secondary formation on atmospheric occurrences of oxygenated polycyclic aromatic hydrocarbons in airborne particles by Kojima, Yuki, Inazu, Koji, Hisamatsu, Yoshiharu, Okochi, Hiroshi, Baba, Toshihide, Nagoya, Toshio

“…Temporal and spatial variations in concentrations of particle-associated polycyclic aromatic hydrocarbons (PAHs) and their nitrated and oxygenated derivatives…”
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Numerical simulation of IL-8-based relative inflammation potentials of aerosol particles from vehicle exhaust and non-exhaust emission sources in Japan by Kajino, Mizuo, Kayaba, Satoko, Ishihara, Yasuhiro, Iwamoto, Yoko, Okuda, Tomoaki, Okochi, Hiroshi

“…Spatial distributions of interleukin-8 (IL-8)-based relative inflammation potentials (IP) of PM2.5 from vehicle exhaust and non-exhaust emission sources in…”
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Geochemical and stable isotope characteristics of urban heavy rain in the downtown of Tokyo, Japan by Uchiyama, Ryunosuke, Okochi, Hiroshi, Ogata, Hiroko, Katsumi, Naoya, Asai, Daisuke, Nakano, Takanori

“…In order to make clear the impact of air pollution on the formation of sudden and locally-distributed heavy rain in urban area (hereafter Urban Heavy Rain:…”
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The impacts of “urban-induced heavy rains” on the distribution of deposition fluxes of inorganic acidic substances in the Tokyo metropolitan area in summer by Uchiyama, Ryunosuke, Okochi, Hiroshi, Kamiya, Junichi, Asai, Daisuke, Kaneko, Chiho, Ogata, Hiroko, Katsumi, Naoya

“…We analyzed the trends in rainfall amounts and the number of heavy rain events with hourly rainfall amounts over 30mm at the inland section of the 23-ward…”
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Source apportionment of ambient PM2.5 in Ho Chi Minh City, Vietnam by Tran, Ngoc, Fujii, Yusuke, Khan, Md Firoz, Hien, To Thi, Minh, Tran Hoang, Okochi, Hiroshi, Takenaka, Norimichi

“…The emission sources of fine particulate matter (PM 2.5 ) have not yet been fully identified in Ho Chi Minh City (HCMC), Vietnam, presenting difficulties to…”
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Practical usefulness of observing the free tropospheric acidic gases with a parallel plate wet denuder coupled ion chromatograph by Takeuchi, Masaki, Nakagawa, Shinya, Watanabe, Hiroki, Tanaka, Hideji, Isobe, Takaharu, Ogata, Hiroko, Okochi, Hiroshi

“…Mountain observatories at high altitudes, far from local anthropogenic emission sources, are considered ideal for monitoring temporal variations of…”
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Airborne microplastics in Bandung and Osaka: Concentration and characteristics by Hidayat, Nur Alina Aprilia, Kitano, Kotaro, Tani, Yuto, Lestari, Puji, Iriana, Windy, Fujii, Yusuke, Okochi, Hiroshi, Niida, Yasuhiro

“…Plastic is a material that is widely used in everyday life. It can be degraded into small-sized fragments (< 5 mm) called microplastics (MPs). Research on MPs…”
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Atmospheric CO, O3, and SO2 Measurements at the Summit of Mt. Fuji during the Summer of 2013 by Kato, Shungo, Shiobara, Yasuhiro, Uchiyama, Katsumi, Miura, Kazuhiko, Okochi, Hiroshi, Kobayashi, Hiroshi, Hatakeyama, Shiro

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H and O isotopic differences in typhon and urban-induced heavy rain in Tokyo by Uchiyama, Ryunosuke, Okochi, Hiroshi, Ogata, Hiroko, Katsumi, Naoya, Asai, Daisuke, Nakano, Takanori

“…Stable isotope ratios of hydrogen and oxygen of water are useful tracers of the hydrological cycle. For example, isotopes monitor the evapotranspiration in…”
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Chemical Structural Features of Humic-like Substances (HULIS) in Urban Atmospheric Aerosols Collected from Central Tokyo with Special Reference to Nuclear Magnetic Resonance Spectra by Katsumi, Naoya, Miyake, Shuhei, Okochi, Hiroshi

“…We measured 1 H and 13 C nuclear magnetic resonance (NMR) spectra of Humic-like substances (HULIS) in urban atmospheric aerosols isolated by diethylaminoethyl…”
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