环境与职业医学2017，Vol.34Issue(12)：1072-1075,4.DOI:10.13213/j.cnki.jeom.2017.17330
烟台市农村地区集中式生活饮用水硝酸盐污染现状
Nitrate pollution of centralized drinking water system in rural areas of Yantai City
徐建军 1徐迎春 1王松松 1于桂梅1
作者信息
- 1. 烟台市疾病预防控制中心公共卫生监测与评价科,山东烟台264003
- 折叠
摘要
Abstract
[Objective] To investigate nitrate pollution of drinking water distributed by centralized treatment systems in rural areas of Yantai City,and analyze pollution sources.[Methods] According to Standard sampling and testing methods for drinking water (GB/T 5750-2006),10 644 samples of finished water and tap water from 3 705 small centralized water supplies in 12 agricultural counties/county-level cities/districts of Yantai City were collected in all dry seasons and wet seasons during the period of 2014-2016.Excel 2003 and SPSS 11.5 were used for statistical analysis on the monitoring results of nitrate.[Results] The average concentration of nitrate in drinking water in selected rural areas of Yantai was 26.31 mg/L.According to the limits of nitrate ≤ 20 mg/L in Drinking water health standards (GB 5749-2006),the unqualified rate of nitrate was 46.91％.There was no difference in the qualified rates of nitrate between dry season (46.93％) and wet season (46.89％) (x2=0.0015,P＞0.05),nor between finished water (46.92％) and tap water (46.89％) (x2=0.0008,P ＞ 0.05).The rural areas with high unqualified rates of nitrate were concentrated in midwest of Yantai.[Conclusion] A heavy nitrate pollution of drinking water is identified in rural areas of Yantai city,showing a regional distribution.关键词
烟台市/农村/生活饮用水/硝酸盐/污染Key words
Yantai City/rural area/drinking water/nitrate/pollution分类
医药卫生引用本文复制引用
徐建军,徐迎春,王松松,于桂梅..烟台市农村地区集中式生活饮用水硝酸盐污染现状[J].环境与职业医学,2017,34(12):1072-1075,4.
