教室空气中细菌的含量,能部分地反映教室空气的清洁度,且直接影响学生身体健康和学习效率。为了解教室通风前后空气中细菌含量的变化,以达到重视课间开窗通风之目的。1988年1月对两所小学的各二个教室进行了通风前后空气中细菌含量的调查,同时每班随机抽取10～12名学生(共47人)做了咽试培养,观察其咽部带菌情况,报导如下: 1 采样 1.1 教室空气中细 The amount of bacteria in the air in the classroom can partly reflect the cleanliness of classroom air and directly affect students’ health and learning efficiency. In order to understand the change of bacteria content in the air before and after the classroom ventilation, in order to achieve the purpose of ventilating the window between classes. In January 1988, the air contents of bacteria in two classrooms of two primary schools were investigated before and after ventilation. At the same time, 10 to 12 students (47 in total) from each class were enrolled in the throat test to observe pharyngeal carriage Situation, reported as follows: 1 sampling 1.1 classroom air fine