A cohort study of traffic-related air pollution and mortality in Toronto, Ontario, Canada.

A cohort study of traffic-related air pollution and mortality in Toronto, Ontario, Canada.
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DOI:
10.1289/ehp.11533
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发表时间:
2009-05
影响因子:
10.4
通讯作者:
Sears MR
Sears MR
中科院分区:
环境科学与生态学1区
文献类型:
--
作者:
Jerrett M;Finkelstein MM;Brook JR;Arain MA;Kanaroglou P;Stieb DM;Gilbert NL;Verma D;Finkelstein N;Chapman KR;Sears MR

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长期暴露于交通相关的空气污染(TRAP)可能会导致过早死亡,但迄今为止很少有研究涉及这一主题。在这项研究中,我们评估了TRAP与加拿大安大略多伦多死亡率之间的关系。我们收集了两个季节的二氧化氮样品,使用重复的双面小川被动扩散采样器在143个地点在多伦多。我们校准土地利用回归预测多伦多内的细尺度NO2暴露。我们使用插值来预测空气动力学直径≤ 2.5 μm的颗粒物(PM2.5)和臭氧水平。我们将预测的污染暴露分配给来自呼吸科诊所的2,360名受试者,并从医疗账单、肺功能测试和肺病学家的诊断中提取这些受试者的健康数据。我们追踪了1992年至2002年的死亡率。我们使用标准和多水平考克斯比例风险模型来检验空气污染与死亡率之间的关系。在控制了年龄、性别、肺功能、肥胖、吸烟和邻里关系剥夺后,我们观察到,在四分位数范围内的4 ppb NO2暴露对比中,全因死亡率增加了17%,循环系统死亡率增加了40%。我们没有观察到与其他污染物的显着关联。在该队列中,TRAP暴露与全因死亡率和循环系统死亡率增加显著相关。队列中心肺疾病的高患病率可能限制了对具有相当大比例的易感个体的人群的结果的推断。
Chronic exposure to traffic-related air pollution (TRAP) may contribute to premature mortality, but few studies to date have addressed this topic. In this study we assessed the association between TRAP and mortality in Toronto, Ontario, Canada. We collected nitrogen dioxide samples over two seasons using duplicate two-sided Ogawa passive diffusion samplers at 143 locations across Toronto. We calibrated land use regressions to predict NO2 exposure on a fine scale within Toronto. We used interpolations to predict levels of particulate matter with aerodynamic diameter ≤ 2.5 μm (PM2.5) and ozone levels. We assigned predicted pollution exposures to 2,360 subjects from a respiratory clinic, and abstracted health data on these subjects from medical billings, lung function tests, and diagnoses by pulmonologists. We tracked mortality between 1992 and 2002. We used standard and multilevel Cox proportional hazard models to test associations between air pollution and mortality. After controlling for age, sex, lung function, obesity, smoking, and neighborhood deprivation, we observed a 17% increase in all-cause mortality and a 40% increase in circulatory mortality from an exposure contrast across the interquartile range of 4 ppb NO2. We observed no significant associations with other pollutants. Exposure to TRAP was significantly associated with increased all-cause and circulatory mortality in this cohort. A high prevalence of cardiopulmonary disease in the cohort probably limits inference of the findings to populations with a substantial proportion of susceptible individuals.
DOI: 10.1161/01.cir.0000108927.80044.7f
发表时间: 2004-01-06
期刊: CIRCULATION
影响因子: 37.8
作者:
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通讯作者: Godleski, JJ
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发表时间: 2004-06-01
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发表时间: 2002-08-01
影响因子: 6.3
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发表时间: 2007-07-31
期刊: CIRCULATION
影响因子: 37.8
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DOI: 10.1080/15287390600883018
发表时间: 2007-02-01
影响因子: 2.6
作者:
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通讯作者: Finkelstein, M. M.