PESTICIDE RESIDUES IN FOOD - 1983
Sponsored jointly by FAO and WHO
EVALUATIONS 1983
Data and recommendations of the joint meeting
of the FAO Panel of Experts on Pesticide Residues
in Food and the Environment and the
WHO Expert Group on Pesticide Residues
Geneva, 5 - 14 December 1983
Food and Agriculture Organization of the United Nations
Rome 1985
FENTHION
RESIDUES
Explanation
The codex Committee on Pesticide Residues requested the Meeting to
reconsider the definition of the residue. The original data submitted
to the 1971 Meeting 1/ were studied for this purpose. The major
metabolite in plants is the sulphoxide of the parent compound. Its
sulphone and the sulphoxide and sulphone of the oxygen analogue are
present at much lower levels. In contrast to plant samples, the
sulphoxide of the oxygen analogue is the major metabolite (ca. 97
percent) in milk. No information was available on the proportion of
different metabolites in meat and many of the plant commodities.
Consequently, the definition of the residue cannot be charged.
1/ See Annex 2 for FAO and WHO documentation.