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Title: Reduction in aldrin and dieldrin concentrations in the Newlyn River
Author: R.P. Smith
Document Type: Monograph
Annotation: EA additional title info: environmental protection report
High levels of aidrin and dieldrin were found in river water and fish in the Newlyn River during 1988. These were linked to the use of aldrin as a pesticide for the control of the large narcissus fly in daffodil growing areas within the catchment. A reduction in pesticide contamination in the Newlyn River Catchment was expected following the ban on the use of aldrin in May 1989 and agreements with the land owner to change fanning practises and to minimise run-off of contaminated sediment. There has been a reduction in aldrin and dieldrin concentrations in river water, river sediments and freshwater fish since the initial work in 1988. Aldrin and dieldrin concentrations in the Newlyn River have remained within the Environmental Quality Standard (EQS) at all times during 1990. However aldrin and dieldrin concentrations in the Trereife Stream tributary still exceeded the EQS during 1990.
Publisher: National Rivers Authority
Publication Date: 1991
Publication Place: Exeter
Subject Keywords: RiversWater pollutionPesticidesInsecticidesCompliance
Geographic Keywords: EA South WestWest Cornwall and the Fal catchmentCornwall
Extent: 4; + figures and appendices
Total file downloads: 263

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