ABSTRACT
Objective To understand environmental quality status of clean operating rooms in municipal hospitals of Xi’an,and provide reference for ensuring the clean quality of operating rooms.Methods On-site specimen collec-tion and detection were conducted to detect and analyze the cleanlinss of air in clean operating rooms in 15 hospital of Xi’an.Results A total of 51 operating rooms were monitored,secondary and tertiary hospitals had 24 and 27 operating rooms respectively;26 were grade-I and 25 were grade-Ⅲ operating rooms.The qualified rates of dust particle≥0.5μm/particle size in grade-I and grade-Ⅲ clean operating rooms were 76.92% and 80.00% respective-ly,≥5μm/ particle size were 73.08% and 88.00% respectively.The qualified rates of dust particle counts in grade-I and grade-Ⅲ clean operating rooms were 61 .54% and 80.00% respectively,difference was not significant(χ2=2.092,P >0.05 ).The qualified rate of dust particle counts in clean operating rooms in tertiary hospitals was significantly higher than secondary hospitals(85.19% vs 58.33%,χ2 =4.600,P 0.05),in surrounding zone were 95.83% and 92.59% respectively (both P >0.05).Conclusion Dust particle and airborne microbes in some clean operating rooms in municipal hospitals of Xi’an are beyond the standard,supervi-sion and management should be strengthened.
ABSTRACT
One year survey on the concentrations and monthly or seasonal variations of airborne microbe in Guangzhou city were analysed and studied with JWL-IIB airborne microbial sampler. The results showed that the yearly average airborne microbe content of outdoor was 2, 298 cfu/m3, and that of indoor was 1,792 cfu/m3 in Guangzhou city. The monthly variation range of outdoor airborne microbe was from 1,073 to 4,096 cfu/m3, the highest content was 4,096 cfu/m3 in March, and the lowest content was 1,073 cfu/m3 in October. The outdoor airborne bacteria and fungi counts were the highest in spring, next in summer, lower in winter and the lowest in autumn in the four seasons . The yearly average concentrations of outdoor airborne microbe at the Garbage compression station, the business walk street, the key traffic route, the residential area, the industrial district and the garden were 4, 573, 3, 835, 1, 580, 1,413, 1, 197 and 1, 187 cfu/m3respectively; and Ones of indoor at the key traffic route, the tourist three star-route hotel and the subway station were 2,511, 1,699and 1,167 cfu/m3 respectively . The study on airborne microbe can be used for the research of health prevention and environment control measures in Guangzhou .