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水是生命之源。常言说人可三天不吃,但不可一日无水。人体重量的65％左右是水分,儿童则高达80％。饮水不仅仅是为了解渴,它对维持人体的酸碱平衡、渗透压,调节体温及食物的消化、吸收和废弃物排泄方面,都有着重要的生理作用。同时,水含有维持人体生长发育和生理机能的必需微量元素,如钾、钠、钙、镁、碘、氟等。因此,保证供给量足质优的饮用水,对于增强人体健康有着重要的意义。如果饮用不良或水源受到污染,就会引起一些疾病的发生,常见
Water is the source of life. The saying goes that people can not eat for three days, but not one day water. About 65% of body weight is water, children up to 80%. Drinking water is not just for thirst, it has an important physiological role in maintaining the body’s acid-base balance, osmotic pressure, regulating body temperature and digestion, absorption and waste excretion of food. At the same time, water contains the necessary trace elements to maintain the body’s growth and physiological function, such as potassium, sodium, calcium, magnesium, iodine, fluorine and so on. Therefore, to ensure adequate supply of drinking water of sufficient quality is of great importance to human health. If drinking bad or water pollution, it will cause some diseases, common