Abstract:
Objective To investigate the microbial contamination situation in drinking water serving for students in Minhang District of Shanghai, and explore appropriate measures of drinking water hygiene management.
Methods A total of 128 drinking water samples and 128 water tap wipe samples of water dispensers were collected from 36 schools in Minhang District of Shanghai by stratified random sampling to investigate the management of school drinking water.
Results Of the 353 primary and secondary schools in Minhang District, 199 schools (56.37%) provided barreled water. The qualification rate of total bacterial count (TBC) in the school drinking water samples was only 53.91%, and the maximum value was 4 480 cfu/mL; the qualification rate of TBC for the water tap wipe samples were 47.66%, and the maximum value was 6 000 cfu/mL. The water taps of water dispensers showing disinfection records in the latest month reported a significantly higher qualification rate of TBC than those none (χ2=5.29, P<0.05). Compared with the samples from the primary and secondary schools, the qualification rate of TBC in the samples from the water taps in kindergartens was significantly higher (χ2=6.18, P<0.05), while that in the drinking water samples was significantly low er (χ2=60.27, P<0.05).
Conclusion The findings indicate a serious microbial pollution issue in the drinking water serving schools of Minhang District, Shanghai. Monitoring and management of microbial contamination in school drinking water should be strengthened.
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