Sichletidis L, Chloros D, Konstantinidis T, Tsiotsios A, Melas D, Petrakakis M, Kelesis A
Laboratory for the Investigation of Environmental Diseases, Aristotle University of Thessaloniki (A.U.TH), Thessaloniki, Greece
Med Lav. 2007 Jul-Aug;98(4):296-301.
The measurement of expired carbon monoxide (CO) is a direct and non-invasive method for the detection of exposure to CO.
Our aim was to investigate the impact ofatmospheric pollution and smoking on expired CO in kiosk workers in Thessaloniki, Greece.
Twenty kiosks were selected in the commercial centre of city. The workers were all men aged 30.5 +/- 5.5 years. Measurements of expired CO and environmental CO were carried out twice per day, during two different seasons of the year, summer and winter. Expired CO was measured via a MicroCOMeter equipped with a fuel cell type electrochemical sensor. The CO levels in ambient air were determined using the method of Non-Dispersive Infra-Red analysis.
Ambient CO levels were 2.11 +/- 0.64 ppm at h. 17:00 and 3.64 +/- 1.45 at h. 21:00 in winter and 1.26 +/- 0.17 ppm at h. 17:00 and 1.73 +/- 0.22 at h. 21:00 in summer. Expired CO in non-smokers was 3.2 +/- 2.7 ppm at h. 17:00 and 4.2 +/- 3.2 at h. 21:00 in winter and 1.3 +/- 1 ppm at h. 17:00 and 2.2 +/- 1.4 at h. 21:00 in summer. In smokers it was +/- 5.2 ppm at h. 17:00 and 13.9 +/- 7.5 at h. 21:00 in winter and 10 +/- 4.8 ppm at h. 17:00 and 18 +/- 7 at h. 21:00 in summer. All these differences were statistically significant. The concentrations of expired CO were significantly correlated with the number of the cigarettes smoked.
The levels of expired CO in kiosk workers increase mainly due to smoking and to a lesser degree due to environmental pollution.
呼出一氧化碳（CO）的测量是检测CO暴露的一种直接且无创的方法。
我们的目的是调查希腊塞萨洛尼基报亭工作人员中大气污染和吸烟对呼出CO的影响。
在该市商业中心选择了20个报亭。工作人员均为30.5±5.5岁的男性。在一年中的两个不同季节，即夏季和冬季，每天进行两次呼出CO和环境CO的测量。通过配备燃料电池型电化学传感器的微型CO计测量呼出CO。使用非色散红外分析法测定环境空气中的CO水平。
冬季17:00时环境CO水平为2.11±0.64 ppm，21:00时为3.64±1.45 ppm；夏季17:00时为1.26±0.17 ppm，21:00时为1.73±0.22 ppm。非吸烟者冬季17:00时呼出CO为3.2±2.7 ppm，21:00时为4.2±3.2 ppm；夏季17:00时为1.3±1 ppm，21:00时为2.2±1.4 ppm。吸烟者冬季17:00时为±5.2 ppm，21:00时为13.9±7.5 ppm；夏季17:00时为10±4.8 ppm，21:00时为18±7 ppm。所有这些差异均具有统计学意义。呼出CO的浓度与吸烟数量显著相关。
报亭工作人员呼出CO的水平升高主要是由于吸烟，其次是环境污染。
