tap water is absolutely useful and recommendable in Germany the most strongly controlled food and thus as drinking water. In other countries the quality of drinking water is frequently worse due to the dressing and monitoring lacking. Straight one in popular vacation areas such as France, Spain and Portugal varies the quality tap water of “as drinking water suitably” to “with the consumption in large quantities health-endangering”. For cooking the tap water is however always suitable in Europe.
An important criterion for the evaluation of tap water is the local water hardness. This varies depending upon area in that the drinking water wells lies. The water hardness has influence on “calcifying the pipes” and naturally also when washing on the necessary quantity of detergents and/or. Water softener.
There are partly qualitative problems with the tap water in areas with intensive conventional agricultural use. By to strong liquid manure discharge of the farmers it can come in these areas to a too high nitrate pollution of the water, which then z. B. for babies and infants as well as for becoming and satisfying mothers to be dangerous can. To some old buildings there is still lead pipe, which can perhaps lead then to increased lead values in the water.
Table of contents
the drinking water regulations
the quality of the tap water in Germany by an European Union regulation (conversion until 2013) and the German drinking water regulation TVO is regulated. The WHO likewise specified a standard for drinking water. In these regulations among other things, those become minimum number of the materials in the drinking water, which can be examined, and the pertinent permissible limit values (e.g. in µg/l) fixed, as well as the frequency of the measurements which can be accomplished.
Clean and pure drinking water has a value after a large medical camp clearly under 80 µS/cm, how it has for example move or pure spring water. The European Union standard requires to keep a value up to the year 2013 of 400 µS/cm. The standard of the WHO permits a maximum value of 750 µS/cm. The German drinking water regulation against it permits a limit value of 2500 µS/cm. In particular after „the turn “1990 were doubled this value from 1000 µS/cm to 2000 µS/cm. 2001 were increased then again this value to 2500 µS/cm. Relatively seen, the drinking water departed always „better “, there by the increase of the limit value from last 2500 µS/cm, these always far from the respective actual value of the individual regions. Additionally the drinking water regulations require that a certain number of the materials possible in the water for their limit values must be examined. In the water can approx. 1500 materials to be found. The WHO requires, which 200 materials, because of their effect for the health, must be examined. After TVO minimum 33 materials in the water must be examined for their limit values.
With a simple conductance - one knows measuring instrument a measurement of its drinking water and/or. Mineral water accomplish. This measuring instrument measures the conductivity in µS/cm (micro Siemens per centimeter) the water. Thus conclusions on the foreign matter portion in the drinking water can be pulled.
factors, those the quality of drinking water affect
the largest danger proceed from the used water pipes. Until 1990 were used in Germany for large Wasserleitungsrohre of asbestos cement tubes. Until 1960 was used in houses still lead pipes. Lead can cause most diverse disease pictures with humans. In particular babies and children are endangered through such a loaded drinking water. Theoretically medicines can arrive in the context of the water circulation also again into the drinking water. In particular babies and children can be endangered by drinking water loaded with copper, a delivery from the pipe to the drinking water are however hardly possible.
To yield of liquid manure by the agriculture it comes into Germany to increased nitrate pollutions Legionellen
The drinking water loading materials, also germs, know with the employment of a molecular filtration plant and/or. Osmose plant to be removed. These devices are used for a long time in the Pharma and food industry, it are also devices for private households available.
handling-linguistic and regional designations
- cock water, cock water, cock water
- crane water, crane water, crane water
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