Ofnæringsavløp

Ofnæringsavløp refers to wastewater that contains elevated levels of nutrients, primarily nitrogen and phosphorus. These nutrients often originate from sources such as agricultural runoff, sewage treatment plants, and industrial discharges. When ofnæringsavløp enters natural water bodies like lakes, rivers, and coastal areas, it can lead to eutrophication.

Eutrophication is a process where excessive nutrient enrichment stimulates the rapid growth of algae and aquatic plants. This bloom of plant life can deplete dissolved oxygen in the water as it decomposes, creating hypoxic or anoxic conditions. These low oxygen levels can be detrimental to fish and other aquatic organisms, potentially leading to fish kills and a significant alteration of the ecosystem's structure and function.

Preventing and managing ofnæringsavløp is a critical aspect of water quality protection. Strategies include improving agricultural practices to reduce fertilizer runoff, upgrading wastewater treatment facilities to remove nutrients more effectively, and implementing regulations to control industrial discharges. Reducing the nutrient load in wastewater helps to mitigate the harmful effects of eutrophication and preserve the health of aquatic ecosystems.