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Brimstone III - Pesticide residues in water - PL0503

The fundamental problem to be addressed is fully described in the associated ADAS ROAME from which it is clear that the measurement of pesticide residues in samples of drainage water is a cornerstone of this work. ADAS aim to monitor the combined effect of a range of soil-physical treatments together with improved targeting of chemicals on the transport of pesticide residues using the Brimstone Farm facility which will be managed by IACR/RES (who will also be undertaking soil degradation and lysimeter studies). The effects of different treatments can only be assessed by measurement of the concentration of pesticides in samples of drainage water and consequently it is essential that these measurements are completely reliable. It is equally important that modelling studies are supported with reliable data.

Consequently CSL needs to validate all the procedures which produce the final measurements, these include sample handling and storage as well as those associated with the analytical measurements. The analytical quality control measures will be designed so as to give the greatest possible confidence in the measurements. In the past the number of analyses possible within the resources available has been the principle limiting factor in experiments such as these. Therefore it is important to find ways of increasing analytical productivity so as to maximise the amount of data generated.
To analyse the largest number of samples possible (within the agreed resources) for all of the required pesticides so as to produce the best possible body of data from the experiments. To do this it will be necessary to influence the experiment and treatment designs (particularly the choice of pesticides applied) to facilitate the analyses without compromising any other aspects of the experiments.

To deploy new techniques and technologies to improve the quantity and quality of the analytical data produced. However, new procedures can be deployed only after they have been fully developed and validated and they may be applicable to a restricted range of pesticides.

To advise on experimental design, especially sampling, and its effects on the statistical analysis of results and thereby on the reliability of the conclusions drawn from the field experiments.

To interpret the analytical data produced by other collaborators and other workers in the field, including an assessment of the analytical quality of the measurements made.

To contribute appropriately to the preparation of publications.

To complete the analysis of samples from the final hydrological year of sampling.
Project Documents
• Final Report : Brimstone III - Pesticide residues in water   (9k)
• Final Report : Pesticide Residues in Water - Analytical Support Brimstone Farm Study (Executive Summary). Support Project to PL0501   (16k)
Time-Scale and Cost
From: 1993

To: 2001

Cost: £575,531
Contractor / Funded Organisations
Central Science Laboratory
Fields of Study
Pesticide Safety