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Correlation between co-exposures to noise and air pollution from traffic sources

机译：交通噪声与空气污染的共同暴露之间的关系

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Background: Both air and noise pollution associated with motor vehicle traffic have been associated with cardiovascular disease. Similarities in pollution source and health outcome mean that there is potential for noise to confound studies of air pollution and cardiovascular disease, and vice versa, or for more complex interactions to occur.Methods: The correlations between 2-week average roadside concentrations of nitrogen dioxide (NO_2) and nitrogen oxides (NO_X) and short term average noise levels (L_(eq.5min)) for 103 urban sites with varying traffic, environment and infrastructure characteristics were examined.Results: The Pearson correlation coefficient for L_(eq.5min) and NO_2 was 0.53, and for L_(eq.5min) and NO_X , 0.64. Factors influencing the degree of correlation were number of lanes on the closest road, number of cars or trucks during noise sampling and presence of a major intersection.
机译：背景：与机动车交通有关的空气和噪声污染都与心血管疾病有关。污染源和健康结果的相似性意味着对空气污染和心血管疾病的混杂研究可能会产生噪音，反之亦然，或者可能发生更复杂的相互作用。方法：路边二周平均二氧化氮浓度之间的相关性研究了103个交通，环境和基础设施特征不同的城市站点的（NO_2）和氮氧化物（NO_X）以及短期平均噪声水平（L_（eq.5min））。结果：L_（eq.5min）的皮尔逊相关系数），NO_2为0.53，L_（eq.5min）和NO_X为0.64。影响相关程度的因素包括最近道路上的车道数量，噪声采样期间的汽车或卡车数量以及主要交叉路口的存在。

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