EXPLANATION Residue aspects of disulfoton were reviewed by the JMPR in 1973, 1975, 1979, 1981, 1984, 1991 and 1994. At the 1996 CCPR MRLs set "at or about the limit of determination" were amended from 0.01 to 0.02 mg/kg after a recommendation from the Ad Hoc Working Group On Methods of Analysis (ALINORM 97/24 para. 52). Several delegations expressed concern at the high levels of estimated intakes relative to the ADI and it was noted that processing data were not available for refinement of the estimation of intake. The Committee requested revised intake calculations and decided to keep all other proposals at step 7C (ALINORM 97/24, paras. 53 and 54). In 1997, the CCPR was informed that additional data would be available for the 1998 JMPR and disulfoton MRLs were kept at Step 7B pending the 1998 evaluation. The present Meeting received new residue data on lima beans, cotton, lettuce and potatoes, as well as reports of recent processing studies on coffee, cotton seed, maize, sorghum and wheat. Processing data on potatoes were also submitted, although minimal information was provided on the field conditions and the analytical methods used. The Meeting received summaries of data reviewed in the previous monographs on disulfoton for the estimation of STMRs and refinement of the dietary intake calculations.
