Characterization of fine particulate matter and associations between particulate chemical constituents and mortality in Seoul, Korea.
Characterization of fine particulate matter and associations between particulate chemical constituents and mortality in Seoul, Korea.
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DOI：
10.1289/ehp.1104316
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发表时间：
2012-06
影响因子：
10.4
通讯作者：
Bell ML
中科院分区：
文献类型：
--
作者：
Son JY;Lee JT;Kim KH;Jung K;Bell ML
背景：许多研究将细颗粒物[空气动力学直径≤ 2.5 µm（PM2.5）]与健康联系起来。大多数研究都集中在粒子的总质量上，尽管粒子的化学成分差异很大。细颗粒物的哪些化学成分最有害还不清楚，亚洲对PM2.5的化学成分和最有害成分的研究特别有限。目的：我们的特点PM2.5的化学成分和估计的影响，原因特定的死亡率的PM2.5质量和成分在首尔，韩国。我们将颗粒的化学成分与美国东部和西部的颗粒进行了比较。方法：我们研究了PM2.5质量及其组成的时间变异性，使用每小时的数据。我们应用了一个过度分散的泊松广义线性模型，调整时间，星期几，温度和相对湿度，以调查死亡率和PM2.5质量及其成分之间的关联在首尔，韩国，2008年8月至2009年10月。结果：PM2.5和化学成分表现出时间模式的一天中的时间和季节。首尔PM2.5的化学特征与美国西部的PM2.5比美国东部更相似。首尔的PM2.5有较低的硫酸盐（SO 4）的贡献和较高的硝酸盐（NO3）的贡献比美国东部，虽然整体PM2.5水平在首尔高于美国。镁（Mg）（0.05 μg/m3）的四分位距（IQR）增加与次日总死亡率增加1.4%（95%置信区间：0.2%，2.6%）相关。对PM2.5总质量贡献最大的几种成分--NO3、SO 4和铵（NH 4）--在p < 0.10的水平上与同日心血管死亡率中度相关。其他具有较小质量贡献的组分[Mg和氯（Cl）]在第二天表现出与呼吸死亡率的中度相关性（p < 0.10）。结论：我们的研究结果将PM2.5成分与死亡率联系起来，并对PM2.5来源的政策制定以及其他地区PM2.5健康研究的相关性产生影响。
Background: Numerous studies have linked fine particles [≤ 2.5 µm in aerodynamic diameter (PM2.5)] and health. Most studies focused on the total mass of the particles, although the chemical composition of the particles varies substantially. Which chemical components of fine particles that are the most harmful is not well understood, and research on the chemical composition of PM2.5 and the components that are the most harmful is particularly limited in Asia. Objectives: We characterized PM2.5 chemical composition and estimated the effects of cause-specific mortality of PM2.5 mass and constituents in Seoul, Korea. We compared the chemical composition of particles to those of the eastern and western United States. Methods: We examined temporal variability of PM2.5 mass and its composition using hourly data. We applied an overdispersed Poisson generalized linear model, adjusting for time, day of week, temperature, and relative humidity to investigate the association between risk of mortality and PM2.5 mass and its constituents in Seoul, Korea, for August 2008 through October 2009. Results: PM2.5 and chemical components exhibited temporal patterns by time of day and season. The chemical characteristics of Seoul’s PM2.5 were more similar to PM2.5 found in the western United States than in the eastern United States. Seoul’s PM2.5 had lower sulfate (SO4) contributions and higher nitrate (NO3) contributions than that of the eastern United States, although overall PM2.5 levels in Seoul were higher than in the United States. An interquartile range (IQR) increase in magnesium (Mg) (0.05 μg/m3) was associated with a 1.4% increase (95% confidence interval: 0.2%, 2.6%) in total mortality on the following day. Several components that were among the largest contributors to PM2.5 total mass—NO3, SO4, and ammonium (NH4)—were moderately associated with same-day cardiovascular mortality at the p < 0.10 level. Other components with smaller mass contributions [Mg and chlorine (Cl)] exhibited moderate associations with respiratory mortality on the following day (p < 0.10). Conclusions: Our findings link PM2.5 constituents with mortality and have implications for policy making on sources of PM2.5 and on the relevance of PM2.5 health studies from other areas to this region.
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影响因子：
10.4
作者：
Hong YC;Hwang SS;Kim JH;Lee KH;Lee HJ;Lee KH;Yu SD;Kim DS
通讯作者：
Kim DS
DOI：
10.1080/10473289.2006.10464529
发表时间：
2006-08-01
影响因子：
2.7
作者：
Aneja, Viney P.;Wang, Binyu;Steger, Joette
通讯作者：
Steger, Joette
影响因子：
10.4
作者：
Bae S;Pan XC;Kim SY;Park K;Kim YH;Kim H;Hong YC
通讯作者：
Hong YC
DOI：
10.1097/ede.0b013e3181812bb7
发表时间：
2008-09
期刊：
Epidemiology (Cambridge, Mass.)
影响因子：
--
作者：
Franklin M;Koutrakis P;Schwartz P
通讯作者：
Schwartz P
影响因子：
10.4
作者：
Ito K;Mathes R;Ross Z;Nádas A;Thurston G;Matte T
通讯作者：
Matte T