Takashi Amagai

Summary

Affiliation: University of Shizuoka
Country: Japan

Publications

  1. ncbi request reprint Gas chromatographic/mass spectrometric determination of benzene and its alkyl derivatives in indoor and outdoor air in Fuji, Japan
    Takashi Amagai
    University of Shizuoka, Institute for Environmental Sciences, Japan
    J AOAC Int 85:203-11. 2002
  2. ncbi request reprint Simultaneous liquid chromatographic determination of 39 polycyclic aromatic hydrocarbons in indoor and outdoor air and application to a survey on indoor air pollution in Fuji, Japan
    Takeshi Ohura
    University of Shizuoka, Japan
    J AOAC Int 85:188-202. 2002
  3. ncbi request reprint Field monitoring of volatile organic compounds using passive air samplers in an industrial city in Japan
    Kazunari Kume
    Graduate School of Nutritional and Environmental Sciences, University of Shizuoka, 52 1 Yada, Shizuoka 422 8526, Japan
    Environ Pollut 153:649-57. 2008
  4. ncbi request reprint Chlorinated polycyclic aromatic hydrocarbons in the atmosphere: seasonal levels, gas-particle partitioning, and origin
    Takeshi Ohura
    Institute for Environmental Sciences, University of Shizuoka, 52 1 Yada, Shizuoka 422 8526, Japan
    Environ Sci Technol 42:3296-302. 2008
  5. ncbi request reprint Seasonal and spatial trends of suspended-particle associated polycyclic aromatic hydrocarbons in urban Shizuoka, Japan
    Kazunari Kume
    Graduate School of Nutritional and Environmental Sciences, University of Shizuoka, 52 1 Yada, Shizuoka 422 8526, Japan
    J Hazard Mater 144:513-21. 2007
  6. doi request reprint A methoxyflavonoid, chrysoeriol, selectively inhibits the formation of a carcinogenic estrogen metabolite in MCF-7 breast cancer cells
    Hitomi Takemura
    Institute for Environmental Sciences, University of Shizuoka, Suruga, Shizuoka, Japan
    J Steroid Biochem Mol Biol 118:70-6. 2010
  7. doi request reprint Differential action of chlorinated polycyclic aromatic hydrocarbons on aryl hydrocarbon receptor-mediated signaling in breast cancer cells
    Takeshi Ohura
    Institute for Environmental Sciences, University of Shizuoka, 52 1 Yada, Shizuoka 422 8526, Japan
    Environ Toxicol 25:180-7. 2010
  8. ncbi request reprint Temporal trends and relationships of particulate chlorinated polycyclic aromatic hydrocarbons and their parent compounds in urban air
    Atsushi Kitazawa
    Graduate School of Nutritional and Environmental Sciences, University of Shizuoka, 52 1, Yada, Suruga ku, Shizuoka, 422 8526, Japan
    Environ Sci Technol 40:4592-8. 2006
  9. ncbi request reprint Prediction of personal exposure to PM2.5 and carcinogenic polycyclic aromatic hydrocarbons by their concentrations in residential microenvironments
    Takeshi Ohura
    Institute for Environmental Sciences, University of Shizuoka, 52 1 Yada, Shizuoka 422 8526, Japan
    Environ Sci Technol 39:5592-9. 2005
  10. ncbi request reprint Occurrence, profiles, and photostabilities of chlorinated polycyclic aromatic hydrocarbons associated with particulates in urban air
    Takeshi Ohura
    Institute for Environmental Sciences, University of Shizuoka, Shizuoka 422 8526, Japan
    Environ Sci Technol 39:85-91. 2005

Collaborators

Detail Information

Publications21

  1. ncbi request reprint Gas chromatographic/mass spectrometric determination of benzene and its alkyl derivatives in indoor and outdoor air in Fuji, Japan
    Takashi Amagai
    University of Shizuoka, Institute for Environmental Sciences, Japan
    J AOAC Int 85:203-11. 2002
    ..These results suggested that indoor benzene predominantly penetrated from outdoors and that other benzene derivatives were emitted from indoor sources, such as paint solvents and kerosene heaters...
  2. ncbi request reprint Simultaneous liquid chromatographic determination of 39 polycyclic aromatic hydrocarbons in indoor and outdoor air and application to a survey on indoor air pollution in Fuji, Japan
    Takeshi Ohura
    University of Shizuoka, Japan
    J AOAC Int 85:188-202. 2002
    ..These results showed that gaseous PAHs in indoor air were primarily from indoor emission sources, especially during the summer, and that indoor particulate PAH concentrations were significantly influenced by outdoor air pollution...
  3. ncbi request reprint Field monitoring of volatile organic compounds using passive air samplers in an industrial city in Japan
    Kazunari Kume
    Graduate School of Nutritional and Environmental Sciences, University of Shizuoka, 52 1 Yada, Shizuoka 422 8526, Japan
    Environ Pollut 153:649-57. 2008
    ....
  4. ncbi request reprint Chlorinated polycyclic aromatic hydrocarbons in the atmosphere: seasonal levels, gas-particle partitioning, and origin
    Takeshi Ohura
    Institute for Environmental Sciences, University of Shizuoka, 52 1 Yada, Shizuoka 422 8526, Japan
    Environ Sci Technol 42:3296-302. 2008
    ..Back trajectory analyses suggested that air masses, originating from China, were associated with the highest CIPAH concentrations...
  5. ncbi request reprint Seasonal and spatial trends of suspended-particle associated polycyclic aromatic hydrocarbons in urban Shizuoka, Japan
    Kazunari Kume
    Graduate School of Nutritional and Environmental Sciences, University of Shizuoka, 52 1 Yada, Shizuoka 422 8526, Japan
    J Hazard Mater 144:513-21. 2007
    ....
  6. doi request reprint A methoxyflavonoid, chrysoeriol, selectively inhibits the formation of a carcinogenic estrogen metabolite in MCF-7 breast cancer cells
    Hitomi Takemura
    Institute for Environmental Sciences, University of Shizuoka, Suruga, Shizuoka, Japan
    J Steroid Biochem Mol Biol 118:70-6. 2010
    ..In conclusion, we present the first report to show that chrysoeriol is a chemopreventive natural ingredient that can selectively inhibit CYP1B1 activity and prevent the formation of carcinogenic 4-OHE(2) from E(2.)...
  7. doi request reprint Differential action of chlorinated polycyclic aromatic hydrocarbons on aryl hydrocarbon receptor-mediated signaling in breast cancer cells
    Takeshi Ohura
    Institute for Environmental Sciences, University of Shizuoka, 52 1 Yada, Shizuoka 422 8526, Japan
    Environ Toxicol 25:180-7. 2010
    ..These results suggest that estrogenic action mediated ER signaling through AhR activation does not necessarily occur for every ligand that can activate AhR...
  8. ncbi request reprint Temporal trends and relationships of particulate chlorinated polycyclic aromatic hydrocarbons and their parent compounds in urban air
    Atsushi Kitazawa
    Graduate School of Nutritional and Environmental Sciences, University of Shizuoka, 52 1, Yada, Suruga ku, Shizuoka, 422 8526, Japan
    Environ Sci Technol 40:4592-8. 2006
    ..The factor analysis also suggested that the emission sources for the ClPAHs (except for 6-CIBaP) may be similar to the sources of the parent PAHs...
  9. ncbi request reprint Prediction of personal exposure to PM2.5 and carcinogenic polycyclic aromatic hydrocarbons by their concentrations in residential microenvironments
    Takeshi Ohura
    Institute for Environmental Sciences, University of Shizuoka, 52 1 Yada, Shizuoka 422 8526, Japan
    Environ Sci Technol 39:5592-9. 2005
    ..5. Personal exposure of nonsmokers to BaP, as calculated from the time-weighted living room, bedroom, and either workplace or outdoor concentrations, accounted for 92-107% of the measured levels of BaP-TEQ...
  10. ncbi request reprint Occurrence, profiles, and photostabilities of chlorinated polycyclic aromatic hydrocarbons associated with particulates in urban air
    Takeshi Ohura
    Institute for Environmental Sciences, University of Shizuoka, Shizuoka 422 8526, Japan
    Environ Sci Technol 39:85-91. 2005
    ..The photolyses of chlorophenanthrenes and 7-chlorobenz[a]anthracene were confirmed to proceed by initial abstraction of chlorine, followed by oxidative degradation...
  11. ncbi request reprint Organic air pollutants inside and outside residences in Shimizu, Japan: levels, sources and risks
    Takeshi Ohura
    Institute for Environmental Sciences, University of Shizuoka, 52 1 Yada, Shizuoka 422 8526, Japan
    Sci Total Environ 366:485-99. 2006
    ....
  12. ncbi request reprint Polycyclic aromatic hydrocarbons in indoor and outdoor environments and factors affecting their concentrations
    Takeshi Ohura
    Institute for Environmental Sciences, University of Shizuoka, 52 1 Yada, Shizuoka 422 8526, Japan
    Environ Sci Technol 38:77-83. 2004
    ..The carcinogenicity of the indoor PAH mixture was dominated by naphthalene followed by BaP and dibenz[a,h]anthracene...
  13. ncbi request reprint Seasonal variability of 1-chloropyrene on atmospheric particles and photostability in toluene
    Takeshi Ohura
    Institute for Environmental Sciences, University of Shizuoka, 52 1, Yada, Shizuoka 422 8526, Japan
    Chemosphere 57:831-7. 2004
    ..In addition, the dechlorination of Cl-Py (i.e., the formation of Py) occurred in the presence of AQ...
  14. ncbi request reprint Spatial distributions and profiles of atmospheric polycyclic aromatic hydrocarbons in two industrial cities in Japan
    Takeshi Ohura
    Institute for Environmental Sciences, University of Shizuoka, 52 1 Yada, Shizuoka 422 8526, Japan
    Environ Sci Technol 38:49-55. 2004
    ....
  15. ncbi request reprint Discovery of novel halogenated polycyclic aromatic hydrocarbons in urban particulate matters: occurrence, photostability, and AhR activity
    Takeshi Ohura
    Institute for Environmental Sciences, University of Shizuoka, 52 1 Yada, Shizuoka 422 8526, Japan
    Environ Sci Technol 43:2269-75. 2009
    ..Toxic equivalents based on the relative potencies of each AhR activity and the ambient concentrations showed that either BrPAHs or CIPAHs accounted for a smaller proportion (approximately 1%) of the total...
  16. ncbi request reprint Behavior and prediction of photochemical degradation of chlorinated polycyclic aromatic hydrocarbons in cyclohexane
    Takeshi Ohura
    Institute for Environmental Sciences, University of Shizuoka, 52 1 Yada, Shizuoka 422 8526, Japan
    Chemosphere 70:2110-7. 2008
    ....
  17. ncbi request reprint Aryl hydrocarbon receptor-mediated effects of chlorinated polycyclic aromatic hydrocarbons
    Takeshi Ohura
    Institute for Environmental Sciences, University of Shizuoka, 52 1 Yada, Shizuoka 422 8526, Japan
    Chem Res Toxicol 20:1237-41. 2007
    ..Finally, we discussed the toxicity of exposure to ClPAHs based on the AhR activities, estimated that it would be approximately 30-50 times higher than that of dioxins...
  18. ncbi request reprint Simultaneous determination of gaseous and particulate chlorinated polycyclic aromatic hydrocarbons in emissions from the scorching of polyvinylidene chloride film
    Shohoko Fujima
    Division of Environmental Health Sciences, Graduate School of Nutritional and Environmental Sciences, University of Shizuoka, 52 1 Yada, Suruga ku, Shizuoka 422 8526, Japan
    Chemosphere 65:1983-9. 2006
    ..Relationships between the number of chlorine substituents on the naphthalene/phenanthrene rings and the overall concentration and the percentage in the particulate phase were also investigated...
  19. doi request reprint Analysis of N(ε) -ethyllysine in human plasma proteins by gas chromatography-negative ion chemical ionization/mass spectrometry as a biomarker for exposure to acetaldehyde and alcohol
    Ryota Mabuchi
    Graduate School of Nutritional and Environmental Sciences and Global COE Program, University of Shizuoka, Shizuoka, Japan
    Alcohol Clin Exp Res 36:1013-20. 2012
    ..In this study, we have developed a sensitive and specific method to quantitate NEL levels in human plasma proteins...
  20. ncbi request reprint Studies on a simultaneous analytical method of urinary nicotine and its metabolites, and their half-lives in urine
    Hideaki Matsuki
    Department of Nursing, School of Health Sciences, Tokai University, 143 Shimokasuya, Isehara, Kanagawa 259 1193, Japan
    J UOEH 30:235-52. 2008
    ..9, 20.0 and 63.0 hours, respectively...
  21. ncbi request reprint The 1997 haze disaster in Indonesia: its air quality and health effects
    Osamu Kunii
    Department of International Community Health, Graduate School of Medicine, The University of Tokyo, Hongo, Japan
    Arch Environ Health 57:16-22. 2002
    ..The results of our study demonstrate the need for special care of the elderly and for care of those with a history of asthma. In addition, the use of a proper mask may afford protection...