1989年在我省伤寒霍乱发病的四个重点地州中(文山州、楚雄州、德宏州及临沧地区)有两个地州城镇集中式给水水质四项指标(混浊度、余氯、总大肠菌群、细菌总数)合格率相当低,远未达到国家允许的标准。另二个地州未进行水质监测详见表1。 In 1989, in four key prefectures (Wenshan Prefecture, Chuxiong Prefecture, Dehong Prefecture and Lincang Region) of typhoid fever cholera in our province, there are four indicators of centralized water quality in cities and towns (turbidity, residual chlorine, Total coliform bacteria, the total number of bacteria) pass rate is quite low, far from the national standards. The other two states did not conduct water quality monitoring in Table 1.