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目的:通过对2004~2008年永清县生活饮用水的检测结果分析,了解永清县生活饮用水水质近况及主要不合格项的分布情况,提出整改建议。方法:采用国家标准检验方法和卫生标准进行分析和评价。结果:2004~2008年共检样品1267份,合格1002份,合格率为79.1%。各年度的合格率差异有非常显著性(2χ=51.22,P<0.01);2χ分割两两比较,相邻年度间差异无显著性,而相隔年度间差异明显;城区共检水样487份,合格率为90.7%,乡村共检780份,合格率为71.8%,二者差异有非常显著性(2χ=65.07,P<0.01);理化指标城区合格率为97.3%,乡村合格率为76.2%,二者差异有非常显著性(2χ=101.58,P<0.01);微生物指标城区合格率为97.3%,92.6%,乡村合格率为78.6%,二者差异有非常显著性(2χ=57.25,P<0.01)。结论:永清县城区生活饮用水水质明显优于乡村,重点加大乡村水质的监督管理力度和改水力度。
OBJECTIVE: To analyze the current drinking water quality in Yongqing County from 2004 to 2008, understand the current status of drinking water quality and the distribution of the main unqualified items in Yongqing County, and put forward suggestions for rectification. Methods: The national standard test methods and health standards for analysis and evaluation. Results: A total of 1267 samples were obtained from 2004 to 2008, with a pass of 1002, with a pass rate of 79.1%. There was a significant difference in the passing rate among all the years (2χ = 51.22, P <0.01). There was no significant difference between 2 years and 2 years, The pass rate was 90.7%, and the number of rural areas was 780. The pass rate was 71.8%. The difference between the two was significant (2χ = 65.07, P <0.01). The qualified rate of urban physical and chemical indicators was 97.3% and that of rural areas was 76.2% (2χ = 101.58, P <0.01). The pass rate of microbial index was 97.3% in urban area, 92.6% in rural area, and the pass rate in rural area was 78.6%. There was a significant difference between the two (2χ = 57.25, P <0.01). Conclusion: The quality of drinking water in urban areas of Yongqing County is obviously superior to that of rural areas, with emphasis on the supervision and management of rural water quality and water intensity.