I don't know when my parents got involved with the water bar. They will not only bomb the WeChat group with various rumors, but also be wary of our actions in their lives.
Drinking water is very particular. Never drink water overnight! ! Let go of overnight water! !
Thousands of boiled water causes cancer, so don't drink any more! After reading the forwarding family group! Stop drinking this water!
You must drink 8 glasses of water every day to ensure your health! Did you drink 8 glasses of water today?
Are all these rumors true?
In fact, boiled water does contain nitrite. Experiments have proved that the content of nitrite will increase from 00034mg/L to 0.0 12mg/L after boiling water is left for 24 hours.
But! No dose, toxicity is all hooliganism!
According to the standards of the World Health Organization, the daily allowable intake of nitrite is 0~0.07mg/kg. In other words, if you weigh 60kg, it is not a big problem to consume nitrite below 4.2m9 per day. At this dose, you should drink at least 350L of overnight water every day to affect your health.
4.2m 9+0.012mg/[= 350l.
Know 0
A barrel of water ~ 18.9L, calculated as 350L, is equivalent to drinking at least 19 barrels of overnight water every day. What is dry boiled water? Is it water that has been rolled 1000 times?
Boiling water refers to water that has been boiled many times. In the Jianghu circle of the elderly, it is widely rumored that the nitrite in dry boiled water exceeds the standard, which is harmful to health.
Once again: it is hooliganism to talk about toxicity without dose! The nitrite content in boiling water is actually very low!
After boiling for 5 times, the nitrite content is 0.028 mg/L;
After boiling 10 times, the nitrite content is 0.03 mg/l;
After boiling for 20 times, the nitrite content is 0.038 mg/L;
According to the report of Shanghai Preventive Medicine in 2007, the nitrite content of drinking fountains was only 1/43 of the national safety standard after 52 times of repeated heating. So as long as the water source is safe and hygienic, thousands of boiled water can be safely drunk. Just don't be afraid of anger.