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目的:通过对51条军事坑道内空气微生物污染调查及其消毒,为坑道环境提供安全保障。方法:用撞击法和沉降法监测空气细菌总数、真菌数、链球菌数及厌氧菌数。用二氧化氯以10 mg/m3量对空气进行消毒。结果:①空气细菌总数及链球菌基本正常。②半密闭型坑道通道及房间空气真菌数最高,中位数分别为5 950 cfu/m3及9 500 cfu/m3。③密闭型坑道空气厌氧菌分别是半密闭型及通风型通道的4.2倍及3.8倍。④空气细菌总数及真菌数消亡率均在90%以上。结论:军事坑道内空气中含有大量真菌及厌氧菌,对进驻人员健康有一定危害。二氧化氯消毒剂对坑道空气消毒效果满意。
Objective: To investigate and disinfect the airborne microorganisms in 51 military tunnels to provide safeguards for tunnel environment. Methods: Total airborne bacteria, fungi, streptococcus and anaerobic bacteria were monitored by impact method and sedimentation method. Air is disinfected with chlorine dioxide at 10 mg / m3. Results: ① The total number of airborne bacteria and streptococcus basically normal. ② The semi-airtight tunnel channel and room air had the highest number of fungi with a median of 5 950 cfu / m3 and 9 500 cfu / m3, respectively. ③ closed tunnel anaerobic bacteria are semi-airtight and ventilated channels 4.2 times and 3.8 times. ④ the total number of air bacteria and fungi, the number of extinction rates were above 90%. Conclusion: The air in the military tunnel contains a large number of fungi and anaerobic bacteria, which have a certain harm to the health of the occupants. Chlorine dioxide disinfectant on the tunnel air disinfection results.