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Tenfell
Awarded contract
Published 30 Oct 2024

Assessment of drift exposures to edge of field surface waterbodies

Health and Safety Executive · North West

Key facts

Contract value
£26,500
Awarded
13 Oct 2024
Contract starts
13 Oct 2024
Contract ends
13 Apr 2025
Procedure
Single tender action (below threshold)
Buyer type
Central government

Awarded to

SupplierValue
Silsoe Spray Applications Unit Ltd£26,500

Description

A bespoke drift trial data set to validate the existing work developing the UK drift curve. There is a lack of available field data that assess drift exposures from in field applications. This trial will enable better understanding of the contribution of in-field spray applications to the overall drift exposures in edge of field surface water bodies (and off crop areas).

To support HSE's Aquatic Buffer Zone Review a project was undertaken to develop a UK spray drift exposure curve that was representative of UK practice in arable fields. The outcome of that previous project is a proposed UK drift curve which has been generated based upon available edge of field drift data and modelling output using the Silsoe Spray Drift Model (SiMOD) and this project follows on from that work.

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