HEPTACHLOR         JMPR 1975

    Explanation

         At the CCPR meeting 1975 (ALINORM 76/24, para. 135) the view was
    expressed that the practical residue limit of 0.05 mg/kg which was
    suggested for sugar beets by the Joint Meeting in 1970 * was
    inconsistent with the simultaneously established practical residue
    limits of 0.2 mg/kg and 0.15 mg/kg for meat and milk and milk products
    (fat basis), respectively.

         In support of this view it was agreed that new data should be
    presented to the Meeting. Such data have not been received.

    APPRAISAL

         Considering the question raised at the CCPR Meeting in 1975, the
    Meeting confirmed that the residue limits for heptachlor in sugar
    beets, meat and milk and milk products are based on data from a
    substantial number of studies on the carry-over from feed to animal
    products made in the years 1964-69. The limits are interrelated and,
    in the opinion of the Meeting, adequately reflect the reviewed data.

         The intention of the practical residue limit in sugar beets is to
    discourage any direct uses of heptachlor in connection with sugar beet
    culture, but at the same time to provide for the presence of residues
    which might occur from unintentional uptake from soils previously
    treated in crop rotations. In the course of time since these
    recommendations were made, several uses of heptachlor may have been
    phased out, and the risks of unintentional uptake my have diminished
    to the extent that the present practical residue limit of 0.05 mg/kg
    in sugar beets could possibly be lowered.

         As however, in the opinion of the Meeting, such lowering would
    not provide any further protection of significance and no further data
    to support a decrease have come forward, the Meeting agreed to
    maintain the limit until such data were provided.

    References

    ALINORM 76/24, 1975.





              

    * This recommendation was erroneously omitted in ref. FAO/WHO, 1971a,
    but was installed after the 1971 Meeting (FAO/WHO, 1972a).
    

    See Also:
       Toxicological Abbreviations
       Heptachlor (EHC 38, 1984)
       Heptachlor (HSG 14, 1988)
       Heptachlor (ICSC)
       Heptachlor (PIM 578)
       Heptachlor (FAO Meeting Report PL/1965/10/1)
       Heptachlor (FAO/PL:CP/15)
       Heptachlor (FAO/PL:1967/M/11/1)
       Heptachlor (FAO/PL:1968/M/9/1)
       Heptachlor (FAO/PL:1969/M/17/1)
       Heptachlor (AGP:1970/M/12/1)
       Heptachlor (WHO Pesticide Residues Series 4)
       Heptachlor (Pesticide residues in food: 1991 evaluations Part II Toxicology)
       Heptachlor (CICADS 70, 2006)