NDLI: Evaluation of the sampling procedure adopted by the EU pesticide residue control programme to assess consumer exposure to high acute toxicity pesticides

Content Provider	Springer Nature Link
Author	Bettencourt da Silva, Ricardo J. N. João Li, Maria Ribeiro Santos, Júlia Camões, M. Filomena G. F. C.
Copyright Year	2002
Abstract	Food chemical control, particularly control involving the analysis of pesticide residues in fruits and vegetables, is routinely performed on composite samples. This sample design is adequate for the control of the majority of pesticides which have only long-term effects. However, from the viewpoint of consumer risk assessment, this sample design is inadequate for pesticides with relevant acute toxicity, when their residues occur in large food items the consumption of which may represent an important fraction of a single meal or an important fraction of the consumption in 24 h. This work presents the results of the Portuguese official pesticide residue control authority concerning the variability of methamidophos concentration in sweet pepper units, collected from the market, in the framework of the EU 1999 co-ordinated programme for the official control of pesticides in products of vegetable origin. The results were expressed with uncertainty and the conclusion was that the observed dispersion cannot be allocated to the method precision. The studied samples presented a variability factor (ratio between the maximum and the mean concentration of the units) ranging from 1.8 to 3.5 supporting the need to consider a variability factor representing the potential unit-to-unit variation in residues concentration for the purpose of consumer risk assessment.
Starting Page	195
Ending Page	201
Page Count	7
File Format	PDF
ISSN	09491775
Journal	Accreditation and Quality Assurance
Volume Number	7
Issue Number	5
e-ISSN	14320517
Language	English
Publisher	Springer-Verlag
Publisher Date	2014-01-17
Publisher Place	Berlin, Heidelberg
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Analytical Chemistry Food Science Biochemistry Commercial Law Ecotoxicology Marketing
Content Type	Text
Resource Type	Article
Subject	Chemistry Instrumentation Chemical Engineering Safety, Risk, Reliability and Quality

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