OPEX

(GLP)


Operator, Worker, Bystander & Residential Exposure (GLP, TOX Area)

OPEX studies:
Objective: To estimate the inhalation or dermal exposure of operators and workers and risk to bystanders during the agricultural uses of pesticides by passive inhalation or absorption monitoring.
GUIDELINES:
  • OECD Series on Testing and Assessment No. 9 Guidance document on the conduct of studies of occupational exposure to pesticides during agricultural application, Paris 1997. OCDE/GD(97)148.

DFR studies

The purpose of this type of studies is to determine the levels of residues that can be dislodged from crop foliage after applications of pesticides.
This information will be used with generic worker activity transfer coefficients to calculate potential human exposure while harvesting leafy vegetables involving contact with treated foliage.
GUIDELINES:
  • OECD Series on Testing and Assessment No. 9 Guidance document on the conduct of studies of occupational exposure to pesticides during agricultural application, Paris 1997. OCDE/GD(97) 148.
  • U.S. EPA Series 875.2100 Occupational and Residential Exposure Test Guidelines. Foliar Dislodgeable Residue Dissipation.

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