Nitrate is mainly produced through intensive agricultural cultivation. Liquid manure contains a lot of ammonium, ammonia and other organic nitrogen compounds.
A new study already found an increased risk of colorectal cancer at nitrate concentrations below the threshold. Even at 16.75 milligrams per liter, the risk increases by 20 percent. Even at even lower nitrate levels, researchers at the University of Aarhus found a connection between nitrate in drinking water and intestinal cancer. Because nitrate converts to nitrite. And this reacts in the stomach with vital food components to so-called nitrosamines, which are considered carcinogenic.
Intestine specialist Stephan Vavricka from the Centre for Gastroenterology and Hepatology in Zurich believes this connection is well possible. He knows from his own research that nitrate can be carcinogenic.
Nitrate itself as a substance is not toxic. The problem is that when nitrate is metabolized in the body, certain carcinogenic compounds are formed. – Stephan Vavricka, intestinal specialist
The Brussels authority set the federal government a final deadline of two months on Thursday before the case could land again before the European Court of Justice and face fines in the millions. This was announced by the German State Secretary for the Environment, Jochen Flasbarth.
Groundwater is not the same as groundwater. Experts distinguish between near-surface and deep groundwater. The deep groundwater does not have to be particularly deep, it can be found between 40 and 250 metres underground. Its special feature is that it regenerates only slowly.
If you pollute the surface groundwater through excessive agriculture, you simply drill deeper. As a result, pollutants from the near-surface groundwater can seep into the depths and contaminate the deep groundwater.
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