Search Results - "Kameda, Takayuki"

Polycyclic aromatic hydrocarbons and nitropolycyclic aromatic hydrocarbons in particulates emitted by motorcycles by Pham, Chau Thuy, Kameda, Takayuki, Toriba, Akira, Hayakawa, Kazuichi

“…We determined eleven PAHs and four NPAHs in particulates and regulated pollutants (CO, CO2, HC, NOx, PM) exhausted from motorcycles to figure out the…”
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Effects of Chemical Reactions on the Oxidative Potential of Humic Acid, a Model Compound of Atmospheric Humic-like Substances by Koike, Yohei, Kameda, Takayuki

“…Atmospheric particulate matter (PM) contains various chemicals, some of which generate in vivo reactive oxygen species (ROS). Owing to their high reactivity…”
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Atmospheric Chemistry of Polycyclic Aromatic Hydrocarbons and Related Compounds by Kameda, Takayuki

“…Polycyclic aromatic compounds are ubiquitous atmospheric pollutants with toxic, mutagenic, and carcinogenic properties. They are produced from chemical…”
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Atmospheric behaviors of polycyclic aromatic hydrocarbons at a Japanese remote background site, Noto peninsula, from 2004 to 2014 by Tang, Ning, Hakamata, Mariko, Sato, Kousuke, Okada, Yumi, Yang, Xiaoyang, Tatematsu, Michiya, Toriba, Akira, Kameda, Takayuki, Hayakawa, Kazuichi

“…Total suspended particulates were collected at a Japanese remote background site (Noto Air Monitoring Station; NAMS) on the Noto Peninsula from September 2004…”
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Mineral dust aerosols promote the formation of toxic nitropolycyclic aromatic compounds by Kameda, Takayuki, Azumi, Eri, Fukushima, Aki, Tang, Ning, Matsuki, Atsushi, Kamiya, Yuta, Toriba, Akira, Hayakawa, Kazuichi

“…Atmospheric nitrated polycyclic aromatic hydrocarbons (NPAHs), which have been shown to have adverse health effects such as carcinogenicity, are formed in part…”
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Simultaneous determination of polycyclic aromatic hydrocarbon quinones by gas chromatography-tandem mass spectrometry, following a one-pot reductive trimethylsilyl derivatization by Toriba, Akira, Homma, Chiharu, Kita, Masahiro, Uozaki, Waka, Boongla, Yaowatat, Orakij, Walaiporn, Tang, Ning, Kameda, Takayuki, Hayakawa, Kazuichi

“…•37 polycyclic aromatic hydrocarbon quinones (PAHQs) were analyzed by GC–MS/MS.•Silylation of PAHQs was achieved by the one-pot reductive derivatization…”
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Influence of Biomass Burning on the Levels of Atmospheric Polycyclic Aromatic Hydrocarbons and Their Nitro Derivatives in Chiang Mai, Thailand by Chuesaard, Thanyarat, Chetiyanukornkul, Thaneeya, Kameda, Takayuki, Hayakawa, Kazuichi, Toriba, Akira

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Ambient fine and coarse particles in Japan affect nasal and bronchial epithelial cells differently and elicit varying immune response by Onishi, Toshinori, Honda, Akiko, Tanaka, Michitaka, Chowdhury, Pratiti H., Okano, Hitoshi, Okuda, Tomoaki, Shishido, Daiki, Terui, Yoshihiro, Hasegawa, Shuichi, Kameda, Takayuki, Tohno, Susumu, Hayashi, Masahiko, Nishita-Hara, Chiharu, Hara, Keiichiro, Inoue, Kozo, Yasuda, Makoto, Hirano, Shigeru, Takano, Hirohisa

“…Ambient particulate matter (PM) epidemiologically exacerbates respiratory and immune health, including allergic rhinitis (AR) and bronchial asthma (BA)…”
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Factors affecting atmospheric 1-, 2-nitropyrenes and 2-nitrofluoranthene in winter at Noto peninsula, a remote background site, Japan by Tang, Ning, Sato, Kousuke, Tokuda, Takahiro, Tatematsu, Michiya, Hama, Hirotaka, Suematsu, Chikako, Kameda, Takayuki, Toriba, Akira, Hayakawa, Kazuichi

“…•Trace levels of three atmospheric nitroarenes (NPAHs) were determined.•We described the long-range transport of atmospheric NPAHs in East Asia.•NPAHs at a…”
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Simultaneous determination of urinary hydroxylated metabolites of naphthalene, fluorene, phenanthrene, fluoranthene and pyrene as multiple biomarkers of exposure to polycyclic aromatic hydrocarbons by Chetiyanukornkul, Thaneeya, Toriba, Akira, Kameda, Takayuki, Tang, Ning, Hayakawa, Kazuichi

“…A method is presented for determining monohydroxy polycyclic aromatic hydrocarbons (OHPAHs) having 2-, 3- and 4-rings in human urine by using high-performance…”
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Atmospheric Occurrence of Particle-associated Nitrotriphenylenes via Gas-phase Radical-initiated Reactions Observed in South Osaka, Japan by Kameda, Takayuki, Bandow, Hiroshi

“…Nitrotriphenylenes (NTPs), which include the highly mutagenic isomer 2-nitrotriphenylene (2-NTP), have been detected in airborne particles. From a public…”
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Determination of Benzo[a]pyrene-7,10-quinone in Airborne Particulates by Using a Chemiluminescence Reaction of Hydrogen Peroxide and Hydrosulfite by Li, Ruibo, Kameda, Takayuki, Toriba, Akira, Hayakawa, Kazuichi, Lin, Jin-Ming

“…An ultraweak chemiluminescence (CL) was observed when sodium hydrosulfite (NaHSO3) reacts with hydrogen peroxide (H2O2) and was enhanced 70 times by adding 10…”
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Nitro-PAH exposures of occupationally-exposed traffic workers and associated urinary 1-nitropyrene metabolite concentrations by Miller-Schulze, Justin P., Paulsen, Michael, Kameda, Takayuki, Toriba, Akira, Hayakawa, Kazuichi, Cassidy, Brandon, Naeher, Luke, Villalobos, Manuel Aguilar, Simpson, Christopher D.

“…The assessment of occupational exposure to diesel exhaust（DE） is important from an epidemiological perspective. Urinary biomarkers of exposure have been…”
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Polycyclic Aromatic Hydrocarbons in Surface Water of the Southeastern Japan Sea by Hayakawa, Kazuichi, Makino, Fumiya, Yasuma, Mari, Yoshida, Shota, Chondo, Yvonne, Toriba, Akira, Kameda, Takayuki, Tang, Ning, Kunugi, Masayuki, Nakase, Hisatoshi, Kinoshita, Chihiro, Kawanishi, Takuya, Zhou, Zhijun, Qing, Wu, Mishukov, Vassily, Tishchenko, Pavel, Lobanov, Vyacheslav B., Chizhova, Tatiana, Koudryashova, Yulia

“…Surface water samples were collected at 15 sampling sites in the southeastern Japan Sea along the Japanese Archipelago for analysis of polycyclic aromatic…”
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Atmospheric concentrations of polycyclic aromatic hydrocarbons and selected nitrated derivatives in Greater Cairo, Egypt by Nassar, Hossam F., Tang, Ning, Kameda, Takayuki, Toriba, Akira, Khoder, Mamdouh I., Hayakawa, Kazuichi

“…Polycyclic aromatic hydrocarbons (PAHs) and selected nitrated derivatives (NPAHs) in air were determined at two sites, El Dokki (a traffic site) and El Teppen…”
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Atmospheric Formation of Hydroxynitropyrenes from a Photochemical Reaction of Particle-Associated 1-Nitropyrene by Kameda, Takayuki, Akiyama, Ayuko, Toriba, Akira, Tang, Ning, Hayakawa, Kazuichi

“…The formation of hydroxynitropyrene (OHNP) via a photochemical reaction of 1-nitropyrene (1-NP) was demonstrated using a UV irradiation system. The…”
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Effects of Oxidized Pyrenes on the Biological Responses in the Human Bronchial Epithelial Cells by Honda, Akiko, Inoue, Ken-ichiro, Takai, Satsuki, Kameda, Takayuki, Ueda, Kayo, Takano, Hirohisa

“…Although polycyclic aromatic hydrocarbons (PAHs) are toxic, the effects of oxidized PAHs on health and biological responses remain unclear. In this study, we…”
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Evaluation of urinary metabolites of 1-nitropyrene as biomarkers for exposure to diesel exhaust in taxi drivers of Shenyang, China by Miller-Schulze, Justin P, Paulsen, Michael, Kameda, Takayuki, Toriba, Akira, Tang, Ning, Tamura, Kenji, Dong, Lijun, Zhang, Xuemei, Hayakawa, Kazuichi, Yost, Michael G, Simpson, Christopher D

“…Diesel exhaust (DE) is a significant contributor to the toxicity associated with particulate matter (PM). 1-Nitropyrene (1-NP) has been used as a molecular…”
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Characteristics and Health Risks of Particulate Polycyclic Aromatic Hydrocarbons and Nitro-polycyclic Aromatic Hydrocarbons at Urban and Suburban Elementary Schools in Shanghai, China by Zhang, Lulu, Tokuda, Takahiro, Yang, Lu, Zhou, Quanyu, Zhang, Xuan, Xing, Wanli, Wu, Qing, Zhou, Zhijun, Chen, Renjie, Kameda, Takayuki, Toriba, Akira, Hayakawa, Kazuichi, Tang, Ning

“…PM 2.1 was collected at urban and suburban elementary schools in Shanghai during two sampling periods in cold and warm seasons in 2007. Nine polycyclic…”
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Long-range transport of polycyclic aromatic hydrocarbons from China to Japan by Yang, Xiao-Yang, Okada, Yumi, Tang, Ning, Matsunaga, Siori, Tamura, Kenji, Lin, Jin-Ming, Kameda, Takayuki, Toriba, Akira, Hayakawa, Kazuichi

“…Airborne particulate matter was collected at Wajima, on the Noto Peninsula, Ishikawa, Japan by a high-volume air sampler with a quartz filter every week from…”
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