Journal
INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH
Volume 16, Issue 9, Pages -Publisher
MDPI
DOI: 10.3390/ijerph16091561
Keywords
heat waves; mortality; age; occupation; household type; chronic diseases; temperature distribution; Korea
Funding
- Korea Environment Institute as a General Project [GP2019-04]
- National Research Council for Economics, Humanities & Social Sciences, Republic of Korea [GP2019-04] Funding Source: Korea Institute of Science & Technology Information (KISTI), National Science & Technology Information Service (NTIS)
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This study analyzed mortality change rate (MCR: daily change rate of mortality at a given temperature per average summer mortality) for 229 municipalities in Korea considering age, occupation, household type, chronic diseases, and regional temperature distribution. We found that the MCR for heat wave differs depending on socioeconomic factors and the temperature distribution in the region. The MCRs for the elderly (65 years of age), outdoor workers, one-person households, and chronic disease patients start to increase at lower temperatures and react more sensitively to temperature than others. For the socioeconomic factors considered in this study, occupation was found to be the most significant factor for the MCR differences (outdoor workers 1.17 and others 1.10 above 35 degrees C, p < 0.01). The MCRs of elderly outdoor workers increased consistently with temperature, while the MCRs of younger outdoor workers decreased at 33 degrees C, the heat wave warning level in Korea. The MCRs in lower temperature regions start to increase at 28 degrees C, whereas the MCRs start to increase at 30 degrees C in higher temperature regions. The results of this study suggest that heat wave policies should be based on contextualized impacts considering age, occupation, household type, chronic disease, and regional temperature distribution.
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