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ARS Home » Pacific West Area » Parlier, California » San Joaquin Valley Agricultural Sciences Center » Commodity Protection and Quality Research » Research » Research Project #439168

Research Project: Chlorate MRL Barrier to EU Export of California Dried Fruit and Tree Nut Exports

Location: Commodity Protection and Quality Research

Project Number: 2034-43000-043-029-T
Project Type: Trust Fund Cooperative Agreement

Start Date: Aug 11, 2020
End Date: Dec 31, 2022

Conduct research to trace the formation and degradation of chlorate residues throughout dried fruit and tree nut production and marketing channels.

Utilize a cooperative effort between USDA. Agricultural Research Service (USDA-ARS), Dried Fruit and Nut Association of California, California industry, and foreign counterparts to address chlorate residues on dried fruit and tree nut exports to European Union (EU). Elements of this USDA, Foreign Agricultural Service, Technical Assistance for Specialty Crops (TASC) activity will be conducted in phases: 1) the development of methods for chlorate residue analysis (i.e., How do we detect the residues? – as related having confidence in the Maximum Residue Level (MRL) proposed by the EU, Objective 2) the characterization of residues in dried fruit and tree nuts (How do the residues levels vary? – as related to an appropriate “ceiling” for an MRL), and Objective 3) identifying dynamics of residue formation and elimination in dried fruit and tree nuts (i.e., How long do the residues last? – as related to agrochemical-specific contributions to the MRL).