7. Diffuse source pollution

This section describes mechanisms for agricultural and non-agricultural diffuse source pollution.

Diffuse pollution represents a myriad of smaller, scattered, episodic sources that together have a significant effect. Examples of diffuse pollution include:

  • the cumulative effect of many individual activities, such as run-off from transport in urban environments or the poor management practice of soils and nutrients in the rural environment. Although individually they can be small and hard to detect, at a catchment scale they can have a significant impact on groundwater and surface water quality
  • the dispersal of pollutants over a larger area, for example, the leaching of nutrients through soil and underground drainage or run-off from land during rainfall events which erodes soil causing sediment, nutrients and pesticides to pollute surface waters or groundwater

There will be continued focus on taking an integrated approach to effectively tackling diffuse pollution using a mix of advice, incentives, industry led initiatives and regulation. This will include the ongoing development of catchment partnerships and the use of new and innovative techniques such as drone surveys and remote sensing using satellite imagery to inform integrated actions.

You can find further information on the website.