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明代医学家张仲景说:“水为何物?命脉也!”人类禁食可维持生命7～9天甚至几周,禁水只能维持3～5天,可见水比食物对人体更为重要。人虽然离不开水,但现在的水却让人担忧。世界卫生组织调查表明,80%的疾病和50%的儿童死亡率都与饮用水水质不良有关。工业的日渐发达,导致水资源受到严重污染,水质发生重大改变。人们常用“50年代淘米水洗菜,60年代浇水灌溉,70年代水质破坏,80年代鱼虾绝代,90年代致病致癌”的顺口溜来描绘水质污染的严重性。
Zhang Zhongjing, a medical scientist in the Ming Dynasty, said: “What is water? Lifeblood!” The human fast can maintain life for 7 to 9 days or even weeks. Water can only be maintained for 3 to 5 days. Visible water is more important to the human body than food. . Although people can not do without water, the current water is worrying. According to a World Health Organization survey, 80% of diseases and 50% of child mortality are related to poor drinking water quality. The growing industry has led to serious pollution of water resources and major changes in water quality. People often use the 50s wash rice, water irrigation in the 1960s, water damage in the 1970s, fish and shrimp in the 1980s, cancer in the 90s to depict the severity of water pollution.