Estimating dislodgeable foliar residues and turf transferrable residues in occupational and residential postapplication exposure assessments . : H113-13/2014-2E-PDF

Dislodgeable foliar residues (DFR) and turf transferrable residues (TTR) are measurements of pesticide residue on foliage and turf that can be transferred to human skin and clothing. They are used by Health Canada’s Pest Management Regulatory Agency (PMRA) when determining postapplication human exposure and risk to pesticides. The United States Environmental Protection Agency (USEPA) recently revised their DFR and TTR default values based on a large, robust database of studies. The PMRA has similarly updated the Canadian default DFR and TTR values for use when chemical-specific DFR or TTR studies are not available; these are presented in this document.

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