The latest hygienic standard for drinking water in China is GB5749-2006, which requires all indicators to be implemented from July 20 12 to July 1 year. This standard refers to the latest standards of WHO, and compares the sanitary standards of drinking water in developed areas such as Europe, Japan and the United States with other countries, and it is also relatively advanced in the coverage of drinking water safety indicators and chemical pollution indicators.
Therefore, I suggest that you should not be misled by some commercial marketing behaviors in some societies, nor have you heard any industry experts or public figures have been making similar voices against the government's inaction in the safety of public drinking water in China.
However, as many people have said, there are still many problems in environmental protection and risk pre-control of public drinking water sources in local governments in China, and incidents leading to tap water pollution often break out because drinking water sources are not found or treated in time; Many urban water supply pipeline systems and secondary water tanks are aging or polluted; Moreover, there are differences in the process treatment level of water supply companies in different places. Most tap water is disinfected with chlorine, and there is residual chlorine in the water (to prevent pipeline microbial pollution).
Once microbial pollution or chemical pollution occurs in tap water, it changes quickly and in a large range, which is a safety problem that will cause a short-term concentrated outbreak; When microbial pollution or chemical pollution in water is detected, many people may have been infected.
Therefore, in many parts of our country, drinking tap water is a safety risk.
The government and hospitals recommend drinking cold boiled water, which is economical and cost-effective. At the same time, because the tap water is boiled and cooled for 30 minutes, the residual chlorine in the remaining water can be basically removed.