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Nutrient Neutrality - Overview

Nutrient pollution is a big environmental issue for our rivers. Increased level of nutrients can harm wildlife. 

In 2019, Natural England issued advice to Winchester that requires new “overnight accommodation” (e.g. houses, hotels, care homes, etc) to mitigate for any increase in nutrients pollution coming from the development site for 100 years. Within the Winchester district, all areas must consider nitrate impact. For certain areas, phosphorous also needs to be considered. 

One of the impacts of building a new home is an increase in nutrient pollution entering the environment. This pollution can come from increased use of wastewater treatment works and runoff from roads and gardens. Nutrient (Total Nitrogen and Phosphorus) pollution can have a significant impact on lakes, rivers, ponds, and the sea through a process called eutrophication. Eutrophication causes excessive algae growth which can damage the environment. High levels of nutrients and signs of eutrophication have been found across the Solent.

We're committed to balancing both the need for new homes while protecting the environment. 

Nutrient Neutrality
Nutrient Illustration 

 

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