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日本ヒートアイランド学会論文集 Vol.12 (2017)

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17A00117A001学術論文
東京 23 区の熱中症死亡率と気温分布との関係  ―2013 年についての解析―
Relationship between heat mortality and temperature distribution in the Tokyo ward area: Analysis for the 2013 summer.

藤部文昭 Fumiaki Fujibe*1 松本 淳 Jun Matsumoto *1 鈴木 秀人  Hideto Suzuki*2 

*1 首都大学東京都市環境学部 Faculty of Urban Environmental Sciences, Tokyo Metropolitan University

*2 東京都監察医務院 Tokyo Medical Examiner's Office

概要を開く

The distribution of heat mortality in the ward area of Tokyo was examined on the basis of 135 cases that were subtracted from postmortem data of the Tokyo Medical Examiner's Office in 2013. It was found that heat mortality was higher in the periphery of the city than in its central part. The mortality of each ward was negatively correlated to the mean income with a coefficient of -0.49, which was statistically significant at the 5% level. For a given value of mean income, inland wards tended to show higher mortality than wards in other areas, in agreement with higher daytime temperature in the inland area. It was also found that the mortality in wards along Tokyo Bay tended to be higher in a period of higher temperature in the coastal area. These facts provide observational evidence for the dependence of the distribution of heat mortality on social and meteorological factors.

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