Research and analysis
Identification and quantification of groundwater nitrate pollution from non-agricultural sources. literature review
A focused literature review of studies of nitrogen loading and groundwater pollution from non-agricultural sources of nitrogen.
Identification and Quantification of Groundwater Nitrate Pollution From Non-Agricultural Sources. Literature Review
Ref: LIT 0600 PDF, 7.69MB, 106 pages
This file may not be suitable for users of assistive technology. Request an accessible format.
If you use assistive technology (such as a screen reader) and need a version of this document in a more accessible format, please email email@example.com. Please tell us what format you need. It will help us if you say what assistive technology you use.
Nitrate has been identified as, and remains, a major water quality issue in the UK, and it originates as a diffuse pollutant in all of the major aquifers and many of the minor aquifers of England and Wales. Considerable scientific effort has been devoted to understanding and quantifying the behaviour of nitrogen inputs from normal agricultural practices, and their transport to groundwater. However, there are other potential sources of nitrate which can affect groundwater. Some of these activities are completely non-agricultural, whilst others are non-arable agricultural, and most are poorly characterised and quantified at present.
Under the Nitrate Directive, review of existing Nitrate Vulnerable Zones (NVZs) and new candidate NVZs will be carried out every four years. Scientifically robust yet relatively simple methods need to be used for establishing a balanced perspective of the contributions from non-agricultural, non-arable agricultural and arable agricultural activities.