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1995年,《中国科学报》公布的“全国生活饮用水水质和水性疾病”调查表明:饮用水质差已成为威胁12亿人口健康的尖锐问题。参加这项调查的专家指出,肿瘤病、各种慢性病患病人数的增长,与饮用水关系甚密。 目前,影响饮用水质量的主要原因是水源污染和管网污染。尽管各地水厂的技术足以保证其自来水基本符合卫生标准,但来自管网和二次供水输送过程的污染,仍严重影响着饮用
In 1995, the “National Drinking Water Quality and Waterborne Diseases” survey published in the China Science Journal showed that the poor quality of drinking water has become a critical issue that threatens the health of 1.2 billion people. Experts participating in the survey pointed out that the number of patients suffering from oncology and various chronic diseases has a close relationship with drinking water. At present, the main reasons that affect the quality of drinking water are water pollution and pipe network pollution. Although the technology of the local water plants is sufficient to ensure that their tap water is basically in compliance with the hygiene standards, the pollution from the pipe network and the secondary water supply process still seriously affects the drinking.