Maximum Residue Limits (MRLs) are set by risk assessment bodies based on scientific reviews on residue data of field trial (or monitoring) and toxicological findings of pesticides. MRLs differ among countries for some crop/pesticide combinations, due to reasons such as: different GAP use patterns, residue data variations as of climate, geographic zone or crop species; also there are other factors such as risk analysis differentiations of: dietary data of national population, risk assessment model or policy, trade considerations etc. The speaker will concentrate on the introduction and comparison of crop grouping system for MRL setting used now in China and other countries/organizations, and on the representative crops for residue data evaluations. Experimental data of field trials on Leaf vegetables and Brassicas may give some examples for representative crop selection/extrapolation. Minor crop problems of herbs, mushrooms, and bean sprouts products in China will also be addressed and discussed.

Crop grouping system for setting maximum residue limits in China: Representative crops for residue data evaluation

248th National Meeting (2014)

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