高原环境下一氧化碳对人体的毒性研究初探

Preliminary Study on the Toxicity of Carbon Monoxide to Humans in Plateau Environment

西藏拉萨市平均海拔为3650m,空气中年平均含氧量占平原地区含氧量的64.3%。拉萨市空气含氧量呈明显的季节变化趋势,冬季是一年中市空气含氧量最低的季节,仅占平原地区含氧量的63.3%。冬季又是一氧化碳中毒案件的高发期。本文通过收集2016年至2019年3月拉萨市发生的一氧化碳中毒死亡案件,对21例中毒死亡者的血样分析结果进行统计分析,结果:男性12例、女性9例,年龄19~60岁,液化气(或煤气)中毒5例,其余均为煤炭中毒。通过分析21个中毒死亡者血样的HbCO%水平测定结果,发现HbCO%的平均值大于50%。

The average elevation of Lhasa in Tibet is 3 650 m, and the average annual oxygen content in the air accounts for 64.3% of the oxygen content in the plains. The oxygen content of the air shows a clear seasonal trend. Winter is the season with the lowest oxygen content in Lhasa during the year, accounting for only 63.3% of the oxygen content in the plain area. Winter is also a high incidence of carbon monoxide poisoning. By collecting the cases of death from carbon monoxide poisoning in Lhasa in 2016 to March 2019, the results of blood analysis of 21 cases of death from poisoning were statistically analyzed. The results were: 12 men, 9 women, 19 to 60 years old, and 5 cases of liquefied gas (or gas) poisoning. The rest is coal poisoning. Analysis of HbCO% levels of blood samples from 21 people who died from poisoning showed that the average value of HbCO% was greater than 50%.