Associations between short-term changes in nitrogen dioxide and mortality in Canadian cities
Associations between short-term changes in nitrogen dioxide and mortality in Canadian cities
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DOI：
10.3200/aeoh.59.5.228-236
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发表时间：
2004-05-01
期刊：
影响因子：
--
通讯作者：
Dann, T
中科院分区：
文献类型：
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作者：
Burnett, RT;Stieb, D;Dann, T
在加拿大12个最大的城市，利用19年(1981-1999年)的时间序列分析，研究了环境中二氧化氮(NO2)浓度的日变化与死亡率之间的关系。作者使用了参数统计方法，这些方法不受最近发现的广义可加模型的收敛和误差估计问题的影响。相当于人口加权研究平均值22.4ppb的NO2浓度三维移动平均值的增加与每日非意外死亡率增加2.25%(t=4.45)有关，并且对臭氧、二氧化硫、一氧化碳、雾霾系数、粒度分级颗粒物质量和硫酸盐离子的调整不敏感，每6天采样一次。二氧化氮的三维移动平均值对1998-2000年期间每日测量的细颗粒物的调整很敏感。
The association between daily variations in ambient concentrations of nitrogen dioxide (NO2) and mortality was examined in 12 of Canada's largest cities, using a 19-yr time-series analysis (from 1981-1999). The authors employed parametric statistical methods that are not subject to the recently discovered convergence and error estimation problems of generalized additive models. An increase in the 3-d moving average of NO2 concentrations equivalent to the population-weighted study mean of 22.4 ppb was associated with a 2.25% (t = 4.45) increase in the daily nonaccidental mortality rate and was insensitive to adjustment for ozone, sulfur dioxide, carbon monoxide, coefficient of haze, size-fractionated particulate mass, and the sulfate ion measured on an every-6th-day sampling schedule. The 3-d moving average of NO2 was sensitive to adjustment for fine particulate matter measured daily during the 1998-2000 time period.