2</sup>=93.166 ， p<0.05 ）；枯水期與豐水期總合格率分別為 77.10% 、 87.42% ，二者差異具有統(tǒng)計學意義（ χ<sup>2</sup>=11.317 ， p<0.05 ）；出廠水總合格率為 84.73% ，末梢水總合格率為 86.31% ，二者之間差異無統(tǒng)計學意義（ χ<sup>2</sup>=0.307 p>0.05 ）。各類監(jiān)測項目中，感官性狀和一般化學指標、毒理學指標、微生物指標總合格分別為 80.32% 、 91.94% 7 96.29% ，三者差異顯著( x<sup>2</sup>=90.02 ， p<0.05 ）。不合格指標共9項，其中硫酸鹽總不合格率最高（ 9.35% ）， ΔpH 值最低( 0.65% ），且不同年份不合格指標的總不合格率差異顯著（ χ<sup>2</sup>=114.558 ， p<0.05 )。結論：鎮(zhèn)原縣相關部門應優(yōu)化水處理工藝流程，加大監(jiān)測頻次與拓展監(jiān)測范圍，綜合運用凈化、改水、引水及高效利用自然降水等舉措，加強飲用水衛(wèi)生監(jiān)督管理，以穩(wěn)步提升農村飲用水質量。-龍源期刊網(wǎng)" />

特黄三级爱爱视频|国产1区2区强奸|舌L子伦熟妇aV|日韩美腿激情一区|6月丁香综合久久|一级毛片免费试看|在线黄色电影免费|国产主播自拍一区|99精品热爱视频|亚洲黄色先锋一区

2020一2024年慶陽市鎮(zhèn)原縣農村生活飲用水監(jiān)測結果分析

  • 打印
  • 收藏
收藏成功


打開文本圖片集

Analysis of Rural Drinking Water Monitoring Results in Zhenyuan County， Qingyang City from 2020 to 2024

LI Lingqiang （Centre for Disease Control and Prevention， Zhenyuan County， Qingyang 7445oo， China）

Abstract： Objective： To study the water quality of rural drinking water in Zhenyuan county from 2020 to 2024，and to lay a solid scientific foundation for improving the level of drinking water hygiene.Method： A total of l24 monitoring points were set up in 13 towns and 6 townships under the jurisdiction of Zhenyuan county，and the samples werecollcted，transported，preserved and monitoredaccording to the GB/T 575O series standards， and thewater samples were evaluated with reference to the GB 5749—2006.Result： From 2020 to 2024，a total of 620 drinking water samples were monitored， and the total pass rate was 82.26% ，with a significant difference in the pass rate between different years （χ2=93.166，p<0.05） ， the total pass rate in the dry season and the wet season were 77.10% and 87.42% ，respectively， and the difference between them was statistically significant （χ2=11.317 ， p< 0.05） ， and the total pass rate of factory water was 84.73% and 86.31% in the terminal water. There was no significant difference between the two groups （χ2=0.307，p>0.05） . Among the various monitoring items，the sensory traits，general chemical indexes， toxicological indexes and microbial indexes were 80.32% 91.94% and 96.29% respectively， with significant differences among the three （χ2=90.02，p<0.05） . There were 9 unqualified indexes， among which the total unqualified rate of sulfate was the highest （9.35%） ，the pH value was the lowest （0.65%） ，and the total unqualified rate of unqualified indexes in different years was significantly different （χ2=114.558 0 p<0.05 ） Conclusion： The relevant departments of Zhenyuan county should optimize the water treatment process， increase the frequency and scope of monitoring，and comprehensively use measures such as purification， water improvement， water diversion and efcient use of natural precipitation，so as to strengthen the supervision and management of

drinking water sanitation， so as to steadily improve the quality of drinking water in rural areas.

Keywords： drinking water; water quality monitoring; rate

水作為生命之本，其質量與人們的健康密切相關。（剩余3789字）

目錄
monitor