Analysis and evaluation of field disinfection effect in Guangdong Province during COVID-19 epidemic period
Objective To analyze the implementation of field disinfection effect evaluation during the COVID-19 epidemic period in Guangdong Province.Methods From November 2021 to July 2022,the field disinfection effect evaluation were carried in 45 sites.Disinfection effect on surface and air were evaluated by the killing rate of natural bacteria or indicator microorganisms.Results 34 preventive disinfection evaluations and 92 epidemic focus disinfection were carried out.The average qualified rate of disinfection effect evaluation on preventive disinfection were 61.8%on hard surface and 100%on air.On hard surface disinfection,the average qualified rate of evaluation of epidemic focus disinfection was 90.2%,and that on logistics enterprises,cold chain sites,airlines and other sites were 76.9%,97.4%,64.7%and 83.3%,respectively.Disinfection was mainly conducted with chlorine containing disinfectant,chlorine dioxide and quaternary ammonium salt with qualified rates of 97.3%,87.5%and 75%.Qualified rate of disinfection effect evaluation on air was 89.3%.The filing rates of disinfectants of chlorine and chlorine dioxide used in cold-chain disinfection were 72.7%and 36.4%.Conclusion Most of key industries and fields in Guangdong Province can carry out field disinfection effect evaluation according to procedures and specifications,but part of detials need to be improved in practice.
field disinfectioneffect evaluationpreventive disinfectiondisinfection of epidemic focusdisinfectant
万方数据
维普
