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目的比较冬季密闭供暖下血液科雾霾天与晴天的空气消毒效果,为控制院内感染提供数据参考。方法选取冬季供暖期2014年12月-2015年2月这3个月内的18个雾霾天作为研究组,18个晴天作为对照组。两组天气均采用相同的空气消毒方法,选取血液科的5个病房作为固定监测点,进行空气检测。结果空气消毒前研究组空气飘尘浓度明显大于对照组,消毒后两组空气飘尘浓度均有所减少,但对照组的浓度仍明显小于研究组;消毒后两组的空气细菌总数均明显下降,但对照组下降幅度更大;一天内,研究组空气污染程度明显比对照组严重。结论冬季密闭供暖下血液科雾霾天的空气消毒净化效果与晴天相比效果更差,应延长空气消毒净化的时间和消毒次数。
Objective To compare the air disinfection efficacy of hematology department with haze days and sunny days under winter airtight heating to provide data reference for controlling nosocomial infection. Methods 18 haze days in the winter heating period from December 2014 to February 2015 were selected as the research group and 18 sunny days as the control group. The two groups of weather using the same air disinfection methods, select the five wards Hematology as a fixed monitoring point for air testing. Results Before air disinfection, the concentration of airborne dust in the study group was significantly greater than that in the control group. After the disinfection, the concentration of airborne dust in the two groups decreased, but the concentration in the control group was still significantly lower than that in the study group. In the control group, the degree of decline was even greater. In one day, the air pollution in the study group was significantly worse than that in the control group. Conclusion The air disinfection and decontamination effect of hematology in the haze department of hematology under winter confined heating is worse than that of sunny day. The time of air disinfection and disinfection should be prolonged.