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隧道内CO对人体健康有重要影响,CO浓度控制是隧道污染物控制的关键参数。我国现行的CO浓度控制标准主要针对公路特别是高速公路制定,目前尚无城市道路隧道的CO浓度控制标准。通过分析血液血红蛋白中碳氧血红蛋白(COHb)比例对人体健康的影响规律,将血液中碳氧血红蛋白占血红蛋白的2.0%设定为隧道内CO浓度控制限值的制定依据。根据人体在一定环境和CO浓度下血液中碳氧血红蛋白浓度与暴露时间之间的关系建立了人车混行和汽车专用隧道CO浓度限值模型,提出了城市人车混行隧道最大长度限制值和适用于城市隧道的CO体积比精细化控制推荐标准。
The CO in the tunnel has an important impact on human health, and the CO concentration control is the key parameter for tunnel pollutant control. The current CO concentration control standard in our country is mainly formulated for highways, especially for expressways. Currently, there is no CO concentration control standard for urban road tunnels. By analyzing the influence of the ratio of carboxyhemoglobin (COHb) in blood on human health, 2.0% of hemoglobin in hemoglobin in blood was set as the basis for the control of CO concentration in tunnel. Based on the relationship between the concentration of carboxyhemoglobin and the exposure time in human body under certain environment and CO concentration, a CO concentration limit model for mixed traffic tunnels and automobile tunnels was set up, and the maximum length limit Recommended CO volumetric refinement control for urban tunnels.