Journal of Dali University ›› 2020, Vol. 5 ›› Issue (2): 97-100.DOI: 10. 3969 / j. issn. 2096-2266. 2020. 02. 022

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Analysis of Hygiene Surveillance Results of Different Water Supply Treatment Modes#br# of Drinking Water in Dali Prefecture

He Sheji 1 , Feng Yanmei 1 , He Zuo 1 , Zhou Yun 1 , Ji Shoulian 2*   

  1. （1. Center for Disease Control and Prevention of Dali Prefecture, Dali, Yunnan 671000, China; 2. College of Public Health,
    Dali University, Dali, Yunnan 671000, China）
  • Received:2019-06-10 Revised:2019-06-21 Online:2020-02-15 Published:2020-02-15

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Abstract: Objective: To know the hygienic quality situation of drinking water of urban and rural residents in Dali Prefecture, and
provide a scientific basis for improving the safety of drinking water in the area. Methods: Sample data of water quality monitoring in
Dali Prefecture from 2014 to 2017 were obtained from National Drinking Water Quality Hygiene Monitoring Information System. The
statistical analysis was carried out under SPSS 20.0 statistical software. Results: Comparing the qualified rate of rural drinking water
with that of urban drinking water, the qualified rate of urban drinking water is higher than that of rural drinking water, and the
difference was statistically significant（P<0.05）. Comparing the qualified rate of different treatment methods, the difference was
statistically significant（P<0.05）. Comparing the qualified rate of different disinfection methods, the difference was statistically
significant（P<0.05）. In General, the water samples that were disinfected with bleaching powder, chorine dioxide and liquid chlorine
were more qualified than those that were not. Conclusion: The sanitary quality of drinking water in Dali Prefecture needs to be
improved, especially in rural areas.

Key words: Dali Prefecture, urban and rural, drinking water, disinfection, hygiene surveillance