2006年潍坊市农村饮用水卫生状况调查

[目的]了解农村生活饮用水的卫生状况，进一步做好农村改水工作，制定农村饮水安全工程规划。[方法]2006年3～5月，对潍坊市农村生活饮用水供水状况进行普查和水质抽样检测。[结果]全市农村人口603．78万人，饮水不安全的占47．72％；4项供水指标不达标的372．11万人（占61．63％），其中水质不达标的占78．56％，水量不达标的占7．55％，方便程度不达标的占8．74％，保证率不达标的占5．15％。抽查680个集中式供水工程，67．79％无净水设备直接供水。抽检水样2416份，合格率为47．19％。集中式供水合格率为68．24％，分散式供水合格率为38．94％（P〈0．01）；地下水合格率为59．67％，地表水合格率为26．56％（P〈O．01）；深层地下水合格率为74．06％，浅层地下水合格率为48．34％（P〈0．01）。抽检水样细菌总数、色度、浑浊度、亚硝酸盐氮、氨氮、硝酸盐氮、氯化物超标率分别为26．49％、21．48％、16．68％、15．60％、15．36％、15．12％、12．29％。[结论]潍坊市农村饮用不安全水人口较多，水质检测合格率较低。

Investigation on Hygienic State of Drinking Water in Rural Areas of Weifang City in 2006

[Objective]To understand the hygienic state of drinking water in the countryside in order to improve the water quality and to set up a security system in Weifang city.[Methods]Investigation on water supply in rural areas and sample examination for water quality were carried out from March to May 2006.[Results]Of the 6 037 800 population in rural areas,47.72% of them had no safe drinking water.4 indexes of water supply did not meet the quality standard(61.63% with the population of 3 721 100) in which unqualified water accounted for 78.56%.The quantity of water which did not up to the standard accounted for 7.55%.8.74% of the water supply was not convenient and 5.15% of them had no ensurence.Of 680 randomly selected central water supply systems,67.79% of them had no water purifying equipments.Of 2 416 samples,only 47.19% of them was up to the standard.The qualified rate of central water supply was 68.42%,separate water supply was 38.94%(P<0.01),ground water was 59.67%,surface water was 26.56%(P<0.01),deep ground water was 74.06% and shallow ground water was 48.34%(P<0.01).The superstandard rate of the total amount of bacteria,color scale,opacity,nitrite nitrogen,ammonia nitrogen,nitrite nitrogen and chloride was 26.49%,21.48%,16.68%,15.60%,15.36%,15.12%,12.29% respectively.[Conclusion]Large numbers of population in rural areas in Weifang had no safe drinking water.The qualified rate of drinking water is low.