Nitratrückständen

Nitratrückständen, often translated as nitrate residues, refers to the presence of nitrate compounds in various substances, particularly food and water. Nitrates are naturally occurring chemicals found in soil, water, and plants. They are also used in fertilizers and as food preservatives.

In agriculture, nitrogen is essential for plant growth. Fertilizers containing nitrates are widely applied to crops. When plants absorb nitrates, they convert a portion into plant proteins, but some can remain in plant tissues. This can lead to elevated levels of nitrates in vegetables like lettuce, spinach, and beetroot.

In drinking water, nitrates can originate from agricultural runoff, sewage, and natural deposits. High levels of nitrates in drinking water are a concern, especially for infants. In the body, nitrates can be converted to nitrites, which can interfere with the blood's ability to carry oxygen, leading to a condition called methemoglobinemia, also known as "blue baby syndrome."

The European Union has established maximum permitted levels for nitrates in both food and drinking water to protect public health. Monitoring and regulation are in place to ensure these levels are not exceeded. Consumers can reduce their intake by choosing a varied diet and being aware of vegetables that tend to accumulate higher levels of nitrates.