Speaking of tap water, everyone is familiar with it. It is something that many people use every day. They use it to wash their faces, brush their teeth, cook, wash clothes, etc. It is an indispensable thing in everyone's daily life. However, with the pollution of rivers by many heavy industries, agriculture, chemical products, etc., tap water has also been affected. So, what I want to share with you today is the harm of tap water to the human body. Tap water may contain some pathogenic microorganisms such as bacteria, viruses, parasites or insect eggs, and may also contain some chemical components that are harmful to the human body. The tap water in cities is basically disinfected with residual chlorine. Although it can remove bacteria and viruses in the water to a certain extent, long-term drinking of water containing residual chlorine will also cause varying degrees of harm to the human body. There are still many people who think that tap water is the best water, which is actually wrong, because tap water has three major hazards: First, it cannot balance the acidity and alkalinity of the human body; Second, the most important disinfectant in the production process of tap water is bleach, that is, chloride ions. As early as 1974, American and Dutch scholars discovered that chloroform compounds would be produced during the chlorination process of drinking water, and suspected that one of the compounds would cause cancer in humans. Third, more importantly, because tap water is treated and then delivered to our homes through pipes, there is serious secondary pollution such as excessive heavy metals in metal pipes, which will have a great impact on the human body. If you want to drink tap water, you should pay attention to the following 4 points: (1) The first bucket of tap water that flows out in the morning can be used as domestic water, but it is not suitable for drinking. Because the water stays in the tap pipes overnight, bacteria may multiply and a certain amount of metal elements may dissolve from the pipes. (2) Water generally boils for 3 minutes. Drinking water that has not been boiled or has been boiled for too long is harmful to the body. (3) Drinking water can be left for several hours before boiling (but not for more than one day). (4) Use water purifier products. The above tells you about the harm of tap water to the human body. I believe you will be surprised after reading it. The original idea that tap water is clean is overturned all of a sudden. However, people's lives cannot be separated from water, so when you drink tap water, you must remember to drink boiled water, not raw water, otherwise those harmful substances will directly enter your body. |
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