title: [Study on the optimization of monitoring indicators of drinking water quality during health supervision].
abstract: OBJECTIVE
  To optimize non-regular drinking water quality indices (except Giardia and Cryptosporidium) of urban drinking water.
  
  
  METHODS
  Several methods including drinking water quality exceed the standard, the risk of exceeding standard, the frequency of detecting concentrations below the detection limit, water quality comprehensive index evaluation method, and attribute reduction algorithm of rough set theory were applied, redundancy factor of water quality indicators were eliminated, control factors that play a leading role in drinking water safety were found.
  
  
  RESULTS
  Optimization results showed in 62 unconventional water quality monitoring indicators of urban drinking water, 42 water quality indicators could be optimized reduction by comprehensively evaluation combined with attribute reduction of rough set.
  
  
  CONCLUSIONS
  Optimization of the water quality monitoring indicators and reduction of monitoring indicators and monitoring frequency could ensure the safety of drinking water quality while lowering monitoring costs and reducing monitoring pressure of the sanitation supervision departments.
authors.forename: Bixiong
authors.initials: B
authors.lastname: Ye
authors.forename: Xueli
authors.initials: X
authors.lastname: E
authors.forename: Lan
authors.initials: L
authors.lastname: Zhang
mesh_terms: D003458:Cryptosporidium; D060766:Drinking Water; D005872:Giardia; D006801:Humans; D060753:Water Quality / Q000592:standards*; D014881:Water Supply
chemical_list: D060766:Drinking Water