练歌房是近年发展的新型娱乐场所。为了解该行业的卫生问题 ,有针对性地强化预防性和经常性监督 ,于 1999年 4月至 12月对芝罘区练歌房进行了调查。现将结果报告如下。1　材料与万法每户练歌房根据其规模大小调查 2～ 4个房间 ,分别在下午和晚上各测定 1次 ,个别业户白天不营业 Practice song room is the development of new entertainment in recent years. In order to understand the health problems of the industry, the preventive and regular supervision was intensified in a targeted manner. From April to December 1999, a survey was conducted on the practice rooms in Zhifu District. The results reported below. Materials and methods Each practice song room according to the size of the investigation of 2 to 4 rooms, respectively, in the afternoon and evening each determination 1, individual business day does not open