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首页> 外文期刊>Environmental Health: A Global Access Science Source >Impacts of highway traffic exhaust in alpine valleys on the respiratory health in adults: a cross-sectional study
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Impacts of highway traffic exhaust in alpine valleys on the respiratory health in adults: a cross-sectional study

机译：高寒山谷公路交通尾气对成人呼吸健康的影响：一项横断面研究

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Background Most studies having shown respiratory health effects from traffic exhaust were conducted in urban areas with a complex mixture of air pollution sources. This study has investigated the potential impact of traffic exhaust on respiratory symptoms among adults living along a Swiss alpine highway corridor, where traffic exhaust from the respective trans-Alpine highway is the predominate source of air pollution. Methods In summer 2005, we recruited 1839 adults aged 15 to 70 from a random sample of 10 communities along the Swiss alpine highway corridors. Subjects answered a questionnaire on respiratory health (asthmatic and bronchitic symptoms), risk factors, and potential confounding variables. We used logistic regression models to assess associations between respiratory symptoms and traffic exposure being defined a) as living within 200 m of the highway, and b) as a bell-shaped function simulating the decrease of pollution levels with increasing distance to the highway. Results Positive associations were found between living close to a highway and wheezing without cold (OR = 3.10, 95%-CI: 1.27-7.55) and chronic cough (OR = 2.88, 95%-CI: 1.17-7.05). The models using a bell-shaped function suggested that symptoms reached background levels after 400-500 m from the highway. The association with chronic cough was driven by a subgroup reporting hay fever or allergic rhinitis. Conclusions Highway traffic exhaust in alpine highway corridors, in the absence of other industrial sources, showed negative associations with the respiratory health of adults, higher than those previously found in urban areas.
机译：背景技术大多数研究表明交通尾气对呼吸系统健康有影响，这些研究是在城市地区混合空气污染源的情况下进行的。这项研究调查了生活在瑞士高山公路走廊沿线成年人的交通废气对呼吸道症状的潜在影响，在该地区，横贯高山公路的交通废气是空气污染的主要来源。方法2005年夏季，我们从瑞士高山公路走廊的10个社区中随机抽取了1839名15至70岁的成年人。受试者回答了关于呼吸系统健康（哮喘和支气管症状），危险因素和潜在混杂变量的问卷。我们使用逻辑回归模型评估呼吸症状与交通暴露之间的关联，这些关联被定义为：a）生活在高速公路200 m之内; b）钟形函数，模拟污染水平随着距高速公路的距离的增加而降低。结果发现在高速公路附近居住和喘息而无感冒（OR = 3.10，95％-CI：1.27-7.55）与慢性咳嗽（OR = 2.88，95％-CI：1.17-7.05）之间呈正相关。使用钟形功能的模型表明，症状在距高速公路400-500 m后达到背景水平。与慢性咳嗽有关的是亚组报告的花粉热或过敏性鼻炎。结论在没有其他工业来源的情况下，高山高速公路走廊的高速公路交通排放与成年人的呼吸健康呈负相关，高于先前在市区发现的相关性。

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