Picture map of Europe with pins indicating European capital cities

Open Access research with a European policy impact...

The Strathprints institutional repository is a digital archive of University of Strathclyde's Open Access research outputs. Strathprints provides access to thousands of Open Access research papers by Strathclyde researchers, including by researchers from the European Policies Research Centre (EPRC).

EPRC is a leading institute in Europe for comparative research on public policy, with a particular focus on regional development policies. Spanning 30 European countries, EPRC research programmes have a strong emphasis on applied research and knowledge exchange, including the provision of policy advice to EU institutions and national and sub-national government authorities throughout Europe.

Explore research outputs by the European Policies Research Centre...

The use of enantiomeric ratios to assess the fate of mecoprop in groundwater

Williams, GM and Harrison, I. and Noy, D J and Crowley, O. and Kalin, R M (2001) The use of enantiomeric ratios to assess the fate of mecoprop in groundwater. In: Pesticide behaviour in soils and water. British Crop Protection Council Symposium Proceedings . British Crop Protection Council, Farnham, pp. 211-216. ISBN 1901396789

Full text not available in this repository. Request a copy from the Strathclyde author

Abstract

Disposal of the chiral phenoxyacid herbicide mecoprop into landfills in the Lincolnshire Limestone has polluted an abstraction well 2.5 km away. Differences in the biological behaviour of the two mirror image structures of mecoprop (or enantiomers), means that changes in the enantiomeric ratio (ER) can help identify the extent of biodegradation down gradient of the landfill. Deposited as a racemic mixture (i.e. 50% of each enantiomer), there has been no change in the ER in the most polluted part of the landfill plume where conditions are sulphate reducing/methanogenic, indicating no degradation. In the iron and nitrate reducing zones of the plume (S)-mecoprop dominates suggesting either inversion of the (R)-mecoprop to (S)-mecoprop, or faster degradation of (R)-mecoprop. In the aerobic aquifer the gradual increase in the ER in favour of (R)-mecoprop suggests faster degradation of (S)-mecoprop. The persistence of mecoprop in the confined Lincolnshire Limestone further down dip is explained by degradation being inhibited by sulphate reducing conditions that develop naturally.