研究者業績

中山 誠健

ナカヤマ ヨシタケ  (Yoshitake Nakayama)

基本情報

所属
千葉大学 予防医学センター 特任准教授
学位
博士(工学)

研究者番号
30620819
ORCID ID
 https://orcid.org/0000-0003-2348-8021
J-GLOBAL ID
202201001104649740
researchmap会員ID
R000040110

論文

 21
  • Keiichi Shimatani, Yoshitake Nakayama, Kohki Takaguchi, Ryotaro Iwayama, Kayo Yoda-Tsumura, Hiroko Nakaoka, Chisato Mori, Norimichi Suzuki
    Building and Environment 258 111596-111596 2024年6月  
  • Kohki Takaguchi, Hiroko Nakaoka, Kayo Tsumura, Akifumi Eguchi, Keiichi Shimatani, Yoshitake Nakayama, Takafumi Matsushita, Takahiro Ishizaka, Ayato Kawashima, Chisato Mori, Norimichi Suzuki
    Science of The Total Environment 917 170197-170197 2024年3月  
  • Kohki Takaguchi, Hiroko Nakaoka, Kayo Tsumura, Akifumi Eguchi, Keiichi Shimatani, Yoshitake Nakayama, Takafumi Matsushita, Takahiro Ishizaka, Ayato Kawashima, Chisato Mori, Norimichi Suzuki
    The Science of the total environment 917 170197-170197 2024年1月20日  
    Volatile organic compounds (VOCs) have been suspected to cause building-related symptoms (BRSs). Although some studies investigated the association between BRSs and VOCs in indoor air, those results were inconsistent. This study investigated the contamination status of VOCs in the indoor air of 154 houses in Japan. Additionally, these samples were grouped by hierarchical clustering analysis based on the VOC composition, and the relationship between a VOC cluster and the BRSs was investigated. The median concentration of the sum of VOCs (ΣVOCs) was 140 μg m-3 (range: 18-3500 μg m-3). The levels of acetaldehyde in four samples and p-dichlorobenzene in one sample exceeded the guideline value. As a result of the hierarchical clustering analysis, the samples in this study were divided into six characteristic clusters based on the VOC composition. The ΣVOCs in cluster 1 were significantly lower than those in other clusters. In cluster 2, acyclic and aromatic hydrocarbons were dominant. Cluster 3 had a relatively high proportion of limonene. In cluster 4, the concentrations and composition ratios of α-pinene were higher than those of other clusters. In cluster 5, p-dichlorobenzene accounted for 42 %-72 % of the total VOCs. Cluster 6 had a relatively high proportion of decamethyl cyclopentasiloxane. This clustering likely depended on the construction of houses and lifestyles. As a result of logistic regression analysis, cluster 5 was associated with the cough symptoms of the BRSs. The results of the present study suggest that investigating the association between VOCs and BRSs is necessary to consider not only total concentrations such as TVOC and ΣVOCs but also VOC composition.
  • C. Abe, K. Shimatani, K. Tsumura, K. Takaguchi, Y. Nakayama, T. Hayashi, C. Mori, N. Suzuki
    Public Health in Practice 100471-100471 2024年1月  
  • 高口 倖暉, 中岡 宏子, 津村 佳余, 江口 哲史, 嶋谷 圭一, 中山 誠健, 松下 尚史, 石坂 閣啓, 川嶋 文人, 森 千里, 鈴木 規道
    環境化学物質3学会合同大会要旨集 2回 477478-477478 2023年5月  

MISC

 47

共同研究・競争的資金等の研究課題

 3