Nitrates, lead and co .: Many wonders if they can safely drink tap water – is it really healthy? You should know that.
Drink tap water or better-bottled water?
In the supermarkets, there is a large selection of mineral water in bottles – from different sources, with or without taste, with little or no carbonic acid. Who has the choice is in agony — the alternative to water from the bottle: tap water drink. But there is still uncertainty whether you can drink tap water and whether it is also suitable for baby food.
Difference between drinking water and mineral water
Where does it come from tap water? Seventy percent of it is made up of groundwater, spring water, rivers, lakes, and dams. Because of the high risk of foreign substances in the water goes along, the water is treated in the waterworks. The quality of the drinking water is strictly controlled in Germany. The basis for the monitoring is the Drinking Water Ordinance. This contains specifications for the preparation and the condition of the drinking water. For example, one requirement is that it was pure and fit for human consumption.
Mineral water comes from water that is in a sheltered, underground source has leaked. This source must be protected from contamination, for example by a layer of clay. Also, the water must be originally pure and bottled at the source become. However, there is no specification as to how much minerals must be present. Even waters with less than 50 mg of minerals per liter may be called natural mineral water.
How does nitrate get into the water?
Now messages about nitrate in the water make it unsettled if it is harmless. But where does the nitrate in the water come from? One of the main reasons is nitrogen-containing Fertilizers, such as mineral fertilizers, manure from piggeries or Substrates of Biogas plants. Nitrates are salts of nitric acid that are water-soluble and easily seep into the soil – which does not consume the plants or is not degraded in the soil, gets into the ground and surface waters with the rain.
But with it the nitrate not harmful to us, the water companies have to ensure that the limit of 50 milligrams per liter is not exceeded – and they have to Check the water regularly.
Drink tap water: healthy or harmful?
In addition to nitrate, heavy metals also lead to uncertainty. Landlords are obliged to remove old pipes from lead so that heavy metals cannot get into the water. The risk, however, exists only in unrenovated old buildings. Also, under the Drinking Water Ordinance, homeowners must commission a sampling and examination of Legionella once every three years – the are water-borne bacteria that are responsible for the so-called Legionnaire’s disease (pneumonia).
According to the Federal Environmental Agency, the drinking water samples in Germany the quality specifications to 99.9 percent. Generally, there are more requirements for tap water than for mineral water, at limits for pesticides and uranium. Also, mineral waters do not always contain more minerals. An earlier test from Stiftung Warentest also shows that mineral waters are not healthier than tap water – the latter, however, is much cheaper (see our article to Dear tap water instead of mineral water ).
Conclusion: Thanks to the treatment pollutants are filtered out, and the water is strictly controlled before it enters our supply system, therefore Water from the pipe harmless to health and Also suitable for the preparation of baby food. If you want to be sure when it comes to baby food, you can buy mineral water, which is given primarily for baby food. But whether mineral or tap water: so that germs have no chance, both must be boiled before.
Tip: Here you will learn why water-drinking keeps us healthy and eight warning signs that you are drinking very little with water.