05 Jun 2008
Six kinds of water that don't be drunk
Unboiled water: The unboiled water contains harmful to human body bacterium, virus and parasite. Have drunk the unboiled water, it is very apt to cause acute gastroenteritis, virus hepatitis, typhoid fever, dysentery and parasite to infect. Especially all kinds of river, reservoir, well water all suffer pollution of waste liquid of the factory, life waste water and pesticide in various degree now, it is apter to cause disease to drink the unboiled water.
Aging water: Commonly called as " the stagnant water " ,That is not to store water moved for a long time. Often drink this kind of water, for minor, will make the metabolism of cell obviously slow down, influence the growth of the body; The middle-aged and elderly people will accelerate being old and feeble. In addition, the increasing day by day of a lot of local cancer of the esophagus, morbidity of gastric carcinoma, according to studying, may relate to drink the aging water for a long time. Relevant materials indicate noxious substance of aging water, will store increase of time and increase with water.
A thousand get away ink: Water is water boiled repeatedly if a thousand rolls. Because this kind of water is boiled too long, the volatile material in water, for instance the content of heavy metal compositions such as calcium, magnesium,etc. and inferior nitrate is very high, has drunk this kind of water for a long time, will interfere with the function of intestines and stomach of the human body, make people present temporary diarrhoea, abdominal distension. Inferior nitrate will also cause people's organism oxygen deficiency, the serious one can go into a coma, faint from fear, even die.
Water of the pot for steaming food: Water of the pot for steaming food steams having a pot of water left of the steamed bun, steamed stuffed bun,etc., especially through water of the pot for steaming food that is used repeatedly many times, inferior nitrate is dense. Often drink this kind of water, or use such boiled porridge, will cause inferior nitrate to be poisoned. In addition, pot for steaming food scale of water enter, behind the human body, will cause digest, nerve, secrete with water urine, hematopoiesis, circulation,etc. systematic pathological change make human body to be too early old and feeble often. This causes because of containing more harmful elements such as cadmium, mercury, arsenic, aluminium,etc. in the scale.
Water not opened: The running water which people drank, is all sterilized by the chlorine and sterilized dealing with. Can also isolate 13 kinds of harmful substances in water that the chlorine has been dealt with, among them hydrocarbon halide, chloroform is carcinogenesis and causing function lopsidedly. When the water temperature reaches 90 ¡æ, hydrocarbon content halide rises to 177 micrograms from original 53 micrograms per kilogram, exceed 2 times of the national drinking water sanitary standard. The expert points out, drink water not boiled, suffer from the possibility increase of bladder cancer, rectal cancer 2 1 % - 3 8 % . When the water temperature reaches 100 ¡æ, these two kinds of harmful substances will be reduced greatly with evaporation of water, such as continuing to seethe with excitement for 3 minutes, it will be safer to drink.
Water boiled again: Someone used to, boil, drink surplus warm boiled water of thermos and then again, the purpose is economized on water, economized on coal ' Angry) , on festival. But this kind " Save " Not worth choosing. Because water has been boiled and boiled again, make the moisture evaporate again, the content of the inferior nitrate will rise, drink the water often, inferior nitrate will gather in body, cause, poison.
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