Hygienic status of fresh-purified drinking water supply in Chongqing city

ObjectiveTo explore hygienic status of fresh-purified drinking water supply in Chongqing city for solving potential health problems.MethodsTrained health supervisors surveyed hygienic situation related to fresh-purified drinking water supply in 18 counties of Chongqing city using a questionnaire.Water samples were collectd with stratified random sampling.Chi-square test was adopted in data analyses.ResultsThere were totally 826 fresh-purified drinking water equipments surveyed in the study,of which 732(88.62%) had valid hygiene cercification.There was a significant difference in the ratio of the equipment with valid hygiene certification between the water supply equipments used in schools and residential areas(P<0.05).A total of 62 water samples were tested and the qualification rate of the samples was 80.65%.The diference in qualification rate of the water samples from the equipments in schools and residential areas had no statistcal significance(P>0.05).ConclusionThe health authorities should take reasonable measures and different management models in effective management of fresh-purified drinking water supply in Chongqing city.