Kurt T L, Mogielnicki R P, Chandler J E, Hirst K
Am J Public Health. 1979 Apr;69(4):360-3. doi: 10.2105/ajph.69.4.360.
Over a 92-day seasonally excessive period of ambient carbon monoxide (CO), chief cardiorespiratory complaints (CRC) of a nontraumatic origin were identified from each of 8,556 patient encounters at the Emergency Room of Colorado General Hospital. Excessive numbers of CRC were seen above a CO level of 5 ppm for the 24-hour mean and 11 ppm for the one hour mean maximum ambient CO (p less than 0.05 for both). Increasing relative risk was shown by comparing daily numbers of CRC with its mean in two-day trend analyses with both ambient CO measures above and below these thresholds. Other ambient pollutants were generally low during the winter period studies. These findings suggest an association between health effects and lower levels of CO than has been previously reported.
在为期92天的季节性环境一氧化碳（CO）超标期间，从科罗拉多综合医院急诊室的8556例患者就诊记录中，识别出了非创伤性来源的主要心肺疾病主诉（CRC）。当24小时平均环境CO水平高于5 ppm且1小时平均最高环境CO水平高于11 ppm时，CRC数量过多（两者p均小于0.05）。在对每日CRC数量与其均值进行的两天趋势分析中，将环境CO测量值与上述阈值进行比较，结果显示相对风险增加。在冬季研究期间，其他环境污染物水平通常较低。这些发现表明，健康影响与比先前报告的更低水平的CO之间存在关联。
