What kind of water to drink?

Water is the best natural solvent and in itall biochemical processes vital for a person take place. According to the doctors, to maintain the optimal water balance in the body, the average adult person should drink 1.5-2 liters of fluid per day.

A certain part of this norm we get with food, and the remainder - together with the water in its pure form. But is it really in the pure?

To date, we can choose which water to use: tap water or bottled water from the pump room or well. But in each of the options there are both advantages and disadvantages.

Tap water. Despite the fact that tap water in largecities has an unpleasant smell and a smack of chlorine, in fact it is practically the safest option. After all, the state of water is monitored by many different services, such as the Sanitary-Epidemic Station or Gospotrebstandart. The water is literally checked every hour for compliance with more than 80 indicators (according to the European standard).

Thus, the water at the water intake station,cleaned and disinfected, really clean and usable. However, after traveling through many kilometers of water pipelines, which are often in an emergency condition, the water becomes contaminated again. Strong chlorination is necessary just so that the water is not re-infected. To get rid of chlorine smell it is possible by boiling tap water and its subsequent upholding.

Home-made jug-type filters, as a rule, coal, also help to solvethe problem of chlorine taste and at the same time additionally purify water from mechanical impurities. Such filters are available and convenient - you only need to replace the cartridge in time. However, they can not purify water from all kinds of pathogens, so they can not be used to clean tap water.

Water in the pump room comes from an artesian well. Artesian aquifers lie between two water-resistant layers and are reliably protected from surface contamination. However, non-observance of sanitary norms when using the pump room leads to contamination and contamination of water. To ensure that the water from the pump room is usable, the state of the pump room should be strictly monitored.

Water from a well or spring can be very dangerous to health. It can be contaminated with pesticides, nitrogen or sulfur compounds contained in atmospheric precipitation, infected with pathogenic bacteria. Even boiling this kind of water may not solve the problem of pollution.

Bottled water currently advertised as the cleanestand safe. However, due to the lack of a legislative framework regulating the production of bottled water, the manufacturer can bottle any water that corresponds to the norms of tap water. Therefore, there is no guarantee that the water in the bottle is not the same tap water ...

When buying bottled water shouldbe sure to pay attention to the source from which this water is poured. Clean can only be water from deep wells - this water does not need to be subjected to additional cleaning. Therefore, if the manufacturer of bottled water does not indicate the location of the spill and the depth of the well, it is better not to risk health and not buy such water.

A separate article of bottled water is mineral water. Mineral water can be both natural andand artificial. Artificial mineral waters are cleansed, and after that they are enriched with mineral salts and carbon dioxide. It is better to use natural mineral water, which is saturated with minerals naturally.

It should be remembered that mineral waters aretable (the content of salts is 10 g / liter). To consume in unlimited quantities can only table mineral water, and therapeutic-table and medicinal water should be drunk only in accordance with the prescription of the doctor.

Regardless of whether we use tap water or bottled water, it must be remembered that drink only fresh water. Raw water can remain fresh up to 3days, after which it must necessarily boil. Water in a sealed plastic bottle can be stored 3-18 months from the date of the spill, in glass - up to 24 months.

Keep water properly, not allowing her greening. The appearance of a greenish shade or green deposits on the walls of the bottle indicates the rapid development of blue-green algae in the water - this water is not suitable for use.

To prevent greening of water, you can not leave a bottle of water in the sun, because it is under the influence of sunlight that the blue-green algae are actively multiplying.