An Analysis of Air Pollution Effect in Urban Area Related to Asian Dust on All-cause and Cause-specific Mortality in Seoul, Korea, 2000-2006

손지영,; 김윤신,; 김연정,; 이종태,; 조용성,

doi:10.5668/jehs.2009.35.4.249

Cited by 2 publications

(1 citation statement)

References 19 publications

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“…28 Although South Korea and Taiwan are geographically close to each other and economically comparable, we observed a significant positive effect in South Korea but a nonsignificant negative effect in Taiwan. Previous studies have also reported significant CO-related total mortality in South Korea 29,30 but not in Taiwan. [31][32][33] We did not find that economic (GDP per capita) or climatic (latitude and annual mean temperature) characteristics significantly modify the CO-mortality relationship (appendix p 25), suggesting that the different findings in South Korea and Taiwan might be due to the smaller sample size in Taiwan or other factors.…”

Section: -H Average Ambient Co On the Previous Day (Lag 1)mentioning

confidence: 81%

Ambient carbon monoxide and daily mortality: a global time-series study in 337 cities

Chen¹,

Breitner

Wolf

et al. 2021

The Lancet Planetary Health

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Background Epidemiological evidence on short-term association between ambient carbon monoxide (CO) and mortality is inconclusive and limited to single cities, regions, or countries. Generalisation of results from previous studies is hindered by potential publication bias and different modelling approaches. We therefore assessed the association between short-term exposure to ambient CO and daily mortality in a multicity, multicountry setting.Methods We collected daily data on air pollution, meteorology, and total mortality from 337 cities in 18 countries or regions, covering various periods from 1979 to 2016. All included cities had at least 2 years of both CO and mortality data. We estimated city-specific associations using confounder-adjusted generalised additive models with a quasi-Poisson distribution, and then pooled the estimates, accounting for their statistical uncertainty, using a randomeffects multilevel meta-analytical model. We also assessed the overall shape of the exposure-response curve and evaluated the possibility of a threshold below which health is not affected.Findings Overall, a 1 mg/m³ increase in the average CO concentration of the previous day was associated with a 0•91% (95% CI 0•32-1•50) increase in daily total mortality. The pooled exposure-response curve showed a continuously elevated mortality risk with increasing CO concentrations, suggesting no threshold. The exposure-response curve was steeper at daily CO levels lower than 1 mg/m³, indicating greater risk of mortality per increment in CO exposure, and persisted at daily concentrations as low as 0•6 mg/m³ or less. The association remained similar after adjustment for ozone but was attenuated after adjustment for particulate matter or sulphur dioxide, or even reduced to null after adjustment for nitrogen dioxide.Interpretation This international study is by far the largest epidemiological investigation on short-term CO-related mortality. We found significant associations between ambient CO and daily mortality, even at levels well below current air quality guidelines. Further studies are warranted to disentangle its independent effect from other traffic-related pollutants.

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