交警呼出气中一氧化碳的快速监测

目的　探讨交警呼出气一氧化碳（ＣＯｂ） 快速检测结果。方法　采用英国制造的一氧化碳 （ＣＯ） 微型监测仪监测２ ０１５ 名广州市交通警察ＣＯｂ 水平并调查询问某些相关因素如吸烟和职业暴露等。结果　ＣＯｂ 呈正偏态分布， 浓度范围为３－７５ ～５３－７５ ｍｇ／ ｍ ３， 中位数１１－２５ ｍｇ／ ｍ ３， 异常率４２－３ ％ （８５２／２ ０１５） ， ＣＯｂ 浓度随吸烟量、烟龄的增加而增加， 监测前１ 小时内吸烟者其浓度较高； 不吸烟男交警， 不同区域、岗位ＣＯｂ 浓度旧市区高于新市区， 定岗指挥交通高于内勤和机动巡逻。结论： 吸烟和接触汽车废气是使交警ＣＯ 水平增加的主要因素， 本研究所用ＣＯ 监测仪使用方便， 检测快速， 可试用于职业接触ＣＯ 人群的预防性健康监护。

Rapid monitoring of carbon monoxide level in breath of traffic police

Objective To measure the carbon monoxide levels in the breath(COb)of trafic police.Methods COb levels were measured in 2015 trafic police in Guangzhou by a micro smokerlyzer,the results were analysed to search the relation to some associated factors such as smoking etc.Results The COb level showed a positive skew distribution with a range from 3 75 to 53 57mg/m 3,the median was 11 25mg/m 3.The abnormal rate was 42 3%(852/2015).The COb level was increased with the smoking amount and the smoking period,the higher levels were seen in those who smoked within one hour before the measurement.In non smokers,the COb level of those who were working in old streets or at a fixed post were higher than the other policemen.Conclusion Smoking and exposure to traffic exhaust were the main factors of increasing the COb level in traffic policemen.The CO micro monitor is a good instrument in health surveillance for occupational CO exposure becauss of its conveniance and quickness.