Relationship between air pollution and daily mortality in a subtropical city: Taipei, Taiwan

Chun Yuh Yang, Chih Ching Chang, Hung Yi Chuang, Shang Shyue Tsai, Trong Neng Wu, Chi Kung Ho

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96 Citations (Scopus)


Air pollution has been associated with daily mortality in numerous studies over the past decade. However most of these studies were conducted in the United States and Europe with relatively few done in Asia. In the current study, the association between ambient air pollution and daily mortality in Taipei, Taiwan's largest city which has a subtropical climate was undertaken, for the period 1994-1998 using a case-crossover analysis. This design is an alternative to Poisson time series regression for studying the short-term adverse health effects of air pollution. The air pollutants examined included particulate matter (PM10), sulfur dioxide (SO2), ozone (O3), nitrogen dioxide (NO2), and carbon monoxide (CO). The largest observed effect, which was without s tatistical significance, was seen for NO2 and CO levels on deaths due to respiratory diseases (ORs=1.013 and 1.014, respectively). The well established link between air pollution levels and daily mortality may not be as strong in cities in subtropical areas, although other factors such as differences in pollutant mix or the underlying health of the population may explain the lack of a strong association in this study. Further studies of this type in cities with varying climates and cultures are needed.

Original languageEnglish
Pages (from-to)519-523
Number of pages5
JournalEnvironment international
Issue number4
Publication statusPublished - 2004 Jun

All Science Journal Classification (ASJC) codes

  • Environmental Science(all)


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