【摘要】 我们调查了某化肥厂接触CO浓度在91.2mg/m~3以下,工龄为1～35年间的283名职工,未发现急性和亚急性中毒病例。但在此浓度下,工作3～4小时后,血液中HbCO饱和度可达8%左右,约有25%以上的接触者有不同程度的自觉症状。研究表明,心电图、甲皱微血管检查技术可列为CO作业工人的健康监护手段。HbCO饱和度超过5%时,应视为过量接触,超过7%可能对人体产生危害。吸烟可使HbCo饱和度增加。所以,应把禁烟列入CO作业工人的安全作业规程。更多还原

【Abstract】 283 fertilizer workers with working years varied form 1 to 35 years under the CO concentration below 91. 2mg/m~3 were examined. No case of acute or subacute poisoning was shown. However, having worked under such condition for 3～4 hours, the saturation level of blood HbCO was found to be about 8%, and percentage of those exposed workers with clinical symptoms in different degrees to be about 25%. This study showed that the examination techniques of electrocardiagram and small blood vessels of nail bed would be appropriate to serve as the health surveillance indices for the CO workers. It might be regarded as overexposure when the saturation level of HbCO amounted to be above 5%; and as harmful to human body when above 7%. Smoking was able to increase the saturation of HbCO. Therefore, smoking prohibition should be included in the regulation of safety for all CO exposed workers.更多还原