上海市某区电影院可重复使用3D眼镜消毒与卫生现状

Disinfection and hygiene status of reusable 3D glasses in cinemas in a district of Shanghai,China

目的了解上海市某区电影院可重复使用3D眼镜的消毒与卫生现状。方法2023年1月对上海市某区20家电影院的可重复使用3D眼镜消毒情况进行问卷调查,并抽取100副可重复使用3D眼镜检测眼镜外观、细菌总数、大肠菌群。依据《公共场所卫生指标及限值要求》(GB 37488-2019)对卫生指标作出评价,运用卡方检验、非参数检验对比不同消毒方式、不同眼镜类型的可重复使用3D眼镜的卫生状况。结果2023年上海市某区20家电影院共有7种不同的可重复使用3D眼镜消毒方式,普通影厅和特殊影厅消毒方式均以75%乙醇+紫外线为主,分别占比73.7%和33.4%。本次调查的100副可重复使用3D眼镜中,卫生指标总体达标率为95.0%(95/100),均未检出大肠菌群,有5副(5%)可重复使用3D眼镜的细菌总数>300 CFU/25 cm^(2)。特殊影厅可重复使用3D眼镜的细菌总数水平[M(IQR)为40(50)CFU/25 cm^(2)]高于普通影厅可重复使用3D眼镜[M(IQR)为30(20)CFU/25 cm^(2)],差异具有统计学意义(z=-2.35,P=0.019)。特殊影厅抽样的29副可重复使用3D眼镜中有48.3%的眼镜消毒会使用到眼镜清洗机,但普通影厅抽样的71副可重复使用3D眼镜中无眼镜清洗机类的消毒方式。不同消毒方式的可重复使用3D眼镜的卫生达标率、细菌总数差异无统计学意义。结论上海市某区电影院可重复使用3D眼镜卫生状况较好,但眼镜消毒方式种类较多,需加强对可重复使用3D眼镜消毒工作的指导和规范。

Objective To investigate the disinfection and hygienic status of reusable 3D glasses in cinemas in a district of Shanghai,China.Methods In January 2023,a questionnaire survey was conducted on the disinfection of reusable 3D glasses in 20 cinemas in a district of Shanghai,and 100 pairs of reusable 3D glasses were selected to test appearance,total bacterial count,and coliform bacteria.Evaluation of hygienic indicators was performed using the Hygienic Indicators and Limits for Public Places(GB 37488-2019).Chi-square test and nonparametric test were used to compare the hygiene status of reusable 3D glasses with different disinfection methods and different types of glasses.Results In 2023,7 disinfection methods were used for reusable 3D glasses in 20 cinemas in a certain district of Shanghai.The disinfection methods for ordinary cinemas and special cinemas were mainly 75%ethanol+ultraviolet,accounting for 73.7%and 33.4%,respectively.Among the 100 pairs of reusable 3D glasses surveyed,the overall qualified rate was 95.0%(95/100),with no coliform bacteria detected.The total number of bacteria on 5 pairs of reusable 3D glasses was>300 CFU/25 cm^(2).The total bacterial count of reusable 3D glasses used in special cinemas[M(IQR):40(50)CFU/25 cm^(2)]was significantly higher than that in regular cinemas[M(IQR):30(20)CFU/25 cm^(2)](z=-2.350,P=0.019).Among the 29 pairs of reusable 3D glasses sampled in special cinemas,48.3%were disinfected using eyeglass cleaning machines,while the 71 pairs of reusable 3D glasses sampled in regular cinemas were not disinfected using eyeglass cleaning machines.There were no significant differences in the qualified rate of hygiene status and total number of bacteria for reusable 3D glasses disinfected by different methods.Conclusion The hygiene status of reusable 3D glasses in cinemas in a district of Shanghai is good,but there are many disinfection methods used for 3D glasses,and it is necessary to strengthen guidance and standardization on the disinfection of reusable 3D glasses.