广东省某市区2007-2010年生活饮用水水质调查

罗皓; 杜进林

广东省某市区2007-2010年生活饮用水水质调查

罗皓,
杜进林

The Quality of Drinking Water in a City of Guangdong in 2007-2010

Luo Hao,
Du Jinlin

摘要

摘要:
目的了解广东省某市区近4年生活饮用水水质状况。
方法对2007-2010年广东省某市区的8家水厂每月进行水质抽检, 按照《生活饮用水标准检验方法》(GB/T 5750-2006) 和《生活饮用水卫生标准》(GB 5749-2006) 进行采样、检验和评价。
结果 2007-2010年该市生活饮用水水质平均合格率为91.92%, 合格率逐年下降; 2010年合格率比其他年份的合格率明显降低(χ²等于66.03, P等于0.000), 水质合格率由高到低依次是管网末梢水、出厂水、二次供水, 各项目检测合格率较低的主要是浑浊度、铁、游离性余氯和菌落总数。
结论该市生活饮用水水质卫生质量有待提高, 尤其应加强对二次供水的监管。

Abstract:
Objectives To investigate the quality of drinking water in a city of Guangdong in 2007-2010.
Methods The quality of drinking water was examined and evaluated according to the Standards for Drinking Water Quality (GB 5749-2006) and Standard Examination Methods for Drinking Water (GB/T 5750-2006).
Results The average qualified rate of drinking water in 2007-2010 was 91.92%, and the qualification was decreased within these years. The average qualified rate in 2010 was significantly lower than the previous years (χ²=66.03, P=0.000). The qualified rate of water sources from high to low was peripheral water pipe network, finished water from the factory and the water from secondary water supply.
Conclusions The quality of drinking water in the city should be improved; especially the monitoring and management of secondary water supply should be strengthened.

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