自来水中难免会含有有机污染物,但这些物质很多是可挥发性的可通过加热随水蒸气挥发掉,从而达到清除污染物的目的。但在日常生活中,人们在用热水壶烧水时不是水刚开就停火,就是烧开后沸腾很久。其实这些做法都不科学。水刚开就停火,一是不能起到充分的杀毒灭菌作用;二是不能将 Water will inevitably contain organic pollutants, but many of these substances are volatile and can be heated with the evaporation of water vapor to achieve the purpose of removing pollutants. However, in daily life, when people use hot water kettles to boil water, they stop boiling water just after they start to boil, boil for a long time after boil. In fact, these practices are not scientific. Water just opened a cease-fire, one can not play a full anti-virus sterilization; the second is not to be