Objective To find out the current situation of the location selection and surface hygiene of the automatic water vending machine,and to provide recommendations for improving the hygienic status.Method All of the 236 automatic water vending machines in Pudong New Area were randomly selected as survey objects,and the location,rain shelter,surface hygiene,outlet protective door,hygiene situation of the drainage notch and surrounding wall were surveyed.
Results There were 17.37% of the automatic water vending machines located within 10 m away from pollution source.There was splashed water on the ground around 11.44% of the automatic water vending machines because of poor drainage,2.54% of the automatic water vending machines did not installed with protective door and 8.47% of the automatic water vending machines with protective door damaged.There was a variety of dirty stains on the machine surface among 30.93% of those machines surveyed,and 2.12% of their covers were damaged.The detection rate for total bacteria,mold,coliform of the samples from the water vending machine outlet pipe mouth was 78.81%,39.41%,48.30%,and for top wall and inner wall of the notch were 75.85%,81.78%,90.68% and 21.19%,5.93%,15.25% respectively.Meanwhile,maintenance to keeping clean and neat of the surrounding circumstances,adequate protective door for the operationable notch,and consolidate outlet casing pipe to prevent the facility against pollution are paramount important.
Conclusion The water vending corporation should strengthen management of the equipment,maintain the machine surface clean,regularly clean and sterilize the water notch and outlet.At the same time,it is also very important to keep the surrounding circumstance neat,install notch protective door and outlet casing pipe,and keep the equipment in an adequate and clean manner.
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