Cypermethrin- Possibility of contaminated meat

Tuesday 30 November 1999

It has recently been reported that a form of cypermethrin may have been used illegally as a sheep dip and there are fears that meat from lambs reared in several farms could be contaminated with cypermethrin.

The form of cypermethrin approved for the use as a sheep dip contains high cis cypermethrin and a binding agent to ensure it is effective for long periods. A full risk assessment to the sheep, environment, consumers and the farmers was made prior to this approval being given.

The use of this product will include recommended strengths of solution and the withdrawal period, during which time the animals cannot be slaughtered for human consumption.

The cypermethrin approved for arable use has not been subject to any risk assessment associated with use as a sheep dip. Hence, the risk to the sheep, environment, consumers and the farmers is unknown. The withdrawal period would also be unknown, creating a risk that illegal levels of cypermethrin could be present in meat offered for human consumption.

Analytical Services

The analysis of cypermethrin is routinely conducted within the Residue Analysis Department using fully validated procedures.

The analysis is conducted using Gas chromatography with Mass Selective Detection (GC.MSD) Results are available within 10 working days after receipt of samples – faster turnarounds are possible with prior notice.

Further details are available on request, contact sales@eclipsescientific.co.uk