The use and the production of organochlorine pesticides (OCPs) e.g. HCB, HCH, the drins, DDT etc has been banned for a long time in EC countries. However, these compounds are highly stable and therefore they are still present in the environment. As a consequence they can be detected in soils and in plants growing on land which has been treated even years ago. Finally, these pesticides bioaccumulate in the food chain. In developing countries, origin of the basic material for animal feed, chlorinated pesticides are still in use. OCPs from third world could enter the food chain through imports of raw materials. As a consequence, it is necessary to detect them in food or animal feed imported from such countries.
The OCP contents in animal feed have been regulated by an EC Directive 74/63 which has been recently modified. A certified reference material is needed to improve the quality of the determination of the OCPs in feed. The candidate CRM consists in animal feed enriched with chlorinated pesticides to reach a value around the Maximum Residue Limits set in the modified EC Directive.
The material is under production, the homogeneity and stability studies started in 1991. Certification could be achieved in 1992
Funding SchemeCSC - Cost-sharing contracts
3552 AS Utrecht
1000 Lausanne 26
3720 BA Bilthoven
750 07 Uppsala
3700 AG Zeist