By the same authors

A spatially distributed assessment for pesticide exposure in surface waters via drainflow

Research output: Chapter in Book/Report/Conference proceedingConference contribution

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Publication details

Title of host publicationPESTICIDE BEHAVIOUR IN SOILS AND WATER
DatePublished - 2001
Pages265-270
Number of pages6
PublisherBRITISH CROP PROTECTION COUNCIL
Place of PublicationFARNHAM
EditorsA Walker
Original languageEnglish
ISBN (Print)1-901396-78-9

Abstract

There is no consensus on the approach to estimating exposure at higher tiers of environmental assessment. Step 1 calculations conducted for a novel herbicide did not exclude the potential for the compound to exhibit effects on higher aquatic plants following transport in drainflow. In a higher tier approach, a model was first validated against field data and then used for distributed modelling for 15 environmental scenarios with 30-year simulations for each. Predicted concentrations of the herbicide for the 15 scenarios were weighted according to their relative abundance within wheat-growing areas. The resulting 450 model outputs were ranked to assess risk and the probability of impact at the national scale.

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