北海市农林场集中式供水工程卫生学状况调查

目的调查北海市农林场集中式供水工程卫生学现状，了解农林场居民的饮用水质安全状况。方法对北海市6个农林场共64个集中式供水工程进行了生活饮用水卫生学调查，并对水质影响因素进行分析研究。结果该市农林场集中式供水工程水质总合格率为3．13％，其中，银海区、铁山港区、合浦县所属农林场水质合格率分别为2．70％、0．00％、5．26％。供水水质总体合格状况无地域差异，影响水质的主要指标是pH值，其次是大肠菌群和细菌总数的微生物指标，县区农林场水质pH值和微生物指标合格率比较差异均有统计学意义（P〈0．05）。结论各农林场饮水工程普遍缺乏必要的卫生防护，集中供水工程水质净化消毒设施缺乏，供水水质合格率低，存在较为严重的介水疾病传播风险。

Hygiene Status of Centralized Water Supply in Agriculture and Forestry Fields in Beihai

Objective To explore the hygiene status of centralized water supply in the agriculture and forestry fields and understand residents＇ drinking water quality in Beihai city . Methods 64 centralized water supply projects in 6 fields were carried out with hygiene investigation, and water quality was analyzed. Results The total qualified rate of water quality was 3. 13% , the qualified rates of water quality in the fields of Yinhai district, Tieshan port district and Hepu county were 2.70% , 0. 00% and 5.26% , respectively. The overall qualification situation of water supply had no geographical difference. The main indicators of affecting water quality was pH, coliform bacteria and total bacterial count, the differences between qualified rates of pH and microbial indexes were significant （ P 〈 0. 05 ） among 6 fields. Conclusion Water projects for the fields are lack of necessary sanitary protection, water purification facilities and disinfection. Low qualified rate of water quality possibly cause the spread of water - borne diseases.