2005—2009年上海市青浦区饮用水水质变化趋势分析

Trend Analysis of Drinking Water Quality in Qingpu District of Shanghai in 2005—2009

目的对上海市青浦区2005—2009年生活饮用水质量进行分析和评估,发现主要超标因素。方法按照国家标准每季度集中对辖区水厂进行生活饮用水采样分析,结果依据国标评价。结果 5年进行了404次水质监测,主要超标指标有浑浊度、耗氧量、氨氮、铁、锰。不同水源的出厂水之间有统计学差异,不同年份间水质有统计学差异。结论该区生活饮用水存在部分指标超标情况,不同水质指标存在比较明显的时间变化。

Objectives Analysis and evaluation on the quality of drinking water and its influencing factors in Qingpu district of Shanghai in 2005--2009. Methods The quality of drinking water analyzed by year and season was monitored and interpreted by the national standard. The data were entered into Excel 2003 and an electronic table was created, and the data were analyzed statistically by SPSS 13.0. Results The quality of drinking water was monitored for 404 times in 5 years, which basically met the requirement of national standards. The major factors exceeding standard limits were turbidity, oxygen consumption, ammonia nitrogen, iron and manganese. The quality of drinking water from different water sources was statistically varied by year and season. Conclusions Part indexes of drinking water quality were over the standard limits seriously with time variation.