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为保护儿童身体健康,提高托幼机构的管理水平,1992～1994年,对牡丹江市67家幼儿园的空气、物体表面随机抽样,进行了细菌污染状况的调查,结果如下。一、方法:1、空气:以平板沉降法采样,检测细菌总数,卫生标准要求不得超过2500cfu/m~2。2、物体表面:用棉拭子涂抹法采样,检测细菌总数,大肠菌群和致病菌,卫生标准要求物体表面细菌总数不得超
In order to protect the health of children and improve the management level of nurseries, from 1992 to 1994, the air and object surfaces of 67 kindergartens in Mudanjiang City were randomly sampled to investigate the bacterial contamination. The results are as follows. First, the method: 1, air: flat sedimentation sampling, testing the total number of bacteria, health standards require no more than 2500cfu / m ~ 2.2, the surface of the object: cotton swab smear sampling, detection of total bacteria, coliform and Pathogens, health standards require that the total number of bacteria on the surface of the object shall not exceed