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首页> 外文期刊>Environmental research >Influence of air pollution on exhaled carbon monoxide levels in smokers and non-smokers. A prospective cross-sectional study
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Influence of air pollution on exhaled carbon monoxide levels in smokers and non-smokers. A prospective cross-sectional study

机译：空气污染对吸烟者和非吸烟者呼出一氧化碳的影响。前瞻性横断面研究

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Background: The poor air quality and cigarette smoking are the most important reasons for increased carbon monoxide (CO) level in exhaled air. However, the influence of high air pollution concentration in big cities on the exhaled CO level has not been well studied yet. Objectives: To evaluate the impact of smoking habit and air pollution in the place of living on the level of CO in exhaled air. Methods: Citizens from two large cities and one small town in Poland were asked to complete a survey disclosing their place of residence, education level, work status and smoking habits. Subsequently, the CO level in their exhaled air was measured. Air quality data, obtained from the Regional Inspectorates of Environmental Protection, revealed the differences in atmospheric CO concentration between locations. Results: 1226 subjects were divided into 4 groups based on their declared smoking status and place of living. The average CO level in exhaled air was significantly higher in smokers than in non-smokers (p < 0.0001) as well as in non-smokers from big cities than non-smokers from small ones (p < 0.0001). Created model showed that non-smokers from big cities have odds ratio of 125.3 for exceeding CO cutoff level of 4 ppm compared to non-smokers from small towns. Conclusions: The average CO level in exhaled air is significantly higher in smokers than non-smokers. Among non-smokers, the average exhaled CO level is significantly higher in big city than small town citizens. These results suggest that permanent exposure to an increased concentration of air pollution and cigarette smoking affect the level of exhaled CO.
机译：背景：空气质量差和吸烟是呼出空气中一氧化碳（CO）含量升高的最重要原因。但是，尚未充分研究大城市中较高的空气污染浓度对呼出CO浓度的影响。目的：评估吸烟习惯和居住环境中的空气污染对呼出空气中一氧化碳水平的影响。方法：来自波兰两个大城市和一个小镇的公民被要求完成一项调查，以披露其居住地点，教育水平，工作状况和吸烟习惯。随后，测量其呼出空气中的CO水平。从区域环境保护监察局获得的空气质量数据揭示了不同地点之间大气中CO浓度的差异。结果：1226名受试者根据其宣布的吸烟状况和居住地分为4组。吸烟者的呼出空气中平均CO水平显着高于不吸烟者（p <0.0001），以及来自大城市的不吸烟者比不吸烟者（p <0.0001）。创建的模型显示，与来自小城镇的非吸烟者相比，来自大城市的非吸烟者超过4 ppm的CO截止水平的比值比为125.3。结论：吸烟者的呼出空气中平均CO水平明显高于非吸烟者。在非吸烟者中，大城市的平均呼出一氧化碳水平明显高于小城镇的居民。这些结果表明，长期暴露于日益增加的空气污染和吸烟中会影响呼出的CO水平。

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