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Pesticide residues in water - ADAS-SWRC hydrological studies in Brimstone III - PL0501

Description

In response to an EC directive, there is a need to reduce pesticide residues
leaching to drinking water. Residues of some pesticides applied to
agricultural land or used in urban areas contaminate potable water supplies
by leaching through soils and drainage systems to both surface waters and
groundwaters.

Current studies have identified the magnitude of the problem of pesticide
residue loss from agricultural soils through small scale plot or lysimeter
installations and larger catchment studies. Information on the processes
controlling pesticide movement, especially in cracking clay soils, and the
factors that influence this movement remain limited.

To improve guidelines for reducing diffuse pesticide residue losses from
agriculture, studies are needed which both improve our understanding of how
pesticide is transported through soils and identify the influence of
agricultural management on these processes.

The aim of this project is to monitor the combined effect of a range of
soil-physical treatments together with improved targeting of chemicals on the
transport of pesticide residues. The manipulative studies proposed will be
flexible so that scientific advances in our understanding of pesticides and
transport processes can be incorporated as a phased process throughout the
programme. A strategy will be established to link the developing database
from this study with other databases and modelling studies within a framework
of government and industry funded programmes.

The work will be used to support the UK and EC registration process through
regular communication with the appropriate bodies.
Objective
Overall objective

To provide guidelines on rational systems of pesticide use which support
sustainable agriculture but minimise pesticide residue leaching to surface
waters. To provide a database to support modelling studies which define the
risk of pesticide residue contamination of surface and groundwaters from
diffuse losses from agricultural soils.

Identifier Sites Objectives Start Completion
date date

Brimstone 1.To establish a range Apr. Oct.
Farm (SE) of soil physical and 1993 1997
crop targeting treatments
to identify systems
which will reduce
pesticide residue losses
from agricultural systems.

2. To develop a database to Sep. Aug.
support modelling studies 1993 1997
which define the risk of
contamination of surface
waters from diffuse
pesticide losses

3.To develop a strategy Sep. Sep.
for linking the 1993 1995.
database from this study
into other supporting
databases and to integrate
into a modelling programme

4.To transfer hydrological Dec. Oct.
and soil-physical data to 1993 1997
IACR RES to support
companion water quality
studies.
Project Documents
• Final Report : Pesticide residues in water - ADAS-SWRC hydrological studies in Brimstone III   (190k)
• Final Report - Annex : Pesticide residues in water - ADAS-SWRC hydrological studies in Brimstone III - Appendices 1 and 2   (440k)
• Final Report - Annex : Pesticide residues in water - ADAS-SWRC hydrological studies in Brimstone III - Appendix 3   (6603k)
• Final Report - Annex : Pesticide residues in water - ADAS-SWRC hydrological studies in Brimstone III - Appendix 4   (269k)
Time-Scale and Cost
From: 1993

To: 2002

Cost: £935,773
Contractor / Funded Organisations
ADAS UK Ltd.
Keywords
Environmental Effects              
Pest and Weed Control              
Pesticide use              
Plants and Animals              
Fields of Study
Pesticide Safety