A comparison of mortality related to urban air particles between periods with Asian dust days and without Asian dust days in Seoul, Korea, 2000-2004
A comparison of mortality related to urban air particles between periods with Asian dust days and without Asian dust days in Seoul, Korea, 2000-2004
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DOI：
10.1016/j.envres.2007.06.004
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发表时间：
2007-11-01
影响因子：
8.3
通讯作者：
Cho, Yong-Sung
中科院分区：
文献类型：
--
作者：
Lee, Jong-Tae;Son, Ji-Young;Cho, Yong-Sung
最近的论文报道，亚洲的沙尘事件与全因死亡率和呼吸系统疾病发病率的增加有关。目前的研究旨在估计与亚洲沙尘事件相关的相对死亡风险。我们使用了2000年至2004年韩国首尔每天的非意外死亡、空气污染和气象数据。我们根据亚洲沙尘事件的存在与否将研究期间的所有日子分为两组。对于每一组，我们进行了时间序列分析，以估计当每种空气污染物浓度增加四分位数范围（IQR）时，总非意外死亡的相对风险。无沙尘日各大气污染物的平均浓度均低于有沙尘日。我们发现，在没有亚洲沙尘事件的模型中，空气污染对日死亡率的影响大小大于有亚洲沙尘事件的模型，并且除O-3外，所有空气污染物（PM10， CO， NO2和SO2）的影响都具有统计学意义。我们的研究结果表明，如果我们分析亚洲沙尘事件期间空气污染对每日死亡率的影响大小，我们可能会低估城市空气颗粒的风险。我们假设真实的健康效应比之前的结果显示的要大得多。(C) 2007爱思唯尔公司版权所有。
Recent papers have reported that Asian dust events have been associated with increased risks of all-cause mortality and rates of respiratory illness. The current study was designed to estimate the relative risk of mortality associated with Asian dust events. We used the daily counts of non-accidental deaths, air pollution and meteorological data in Seoul, Korea from 2000 to 2004. We divided all days during the study period into two groups according to the presence or absence of Asian dust events. For each group, we conducted time-series analysis to estimate the relative risk of total non-accidental death when the concentration of each air pollutant increased by the inter-quartile range (IQR). The average concentrations of every air pollutant on the days without a dust event were lower than those on the days with such an event. We found that the effect sizes of air pollution on daily death rates in the model without Asian dust events were larger than those in the model with Asian dust events, and were statistically significant for all air pollutants (PM10, CO, NO2, and SO2) except for O-3. Our results Suggest that we are likely to underestimate the risk of urban air particles if we analyze the effect size of air pollution on daily mortality during Asian dust events. We hypothesize that the real health effect is much larger than previous results Suggested. (C) 2007 Elsevier Inc. All rights reserved.