Record Display for the EPA National Library Catalog


Main Title Interim Reregistration Eligibility Decision for Chlorpyrifos (includes Chlorpyrifos Facts).
CORP Author Environmental Protection Agency, Washington, DC. Office of Prevention, Pesticides and Toxic Substances.
Publisher Feb 2002
Year Published 2002
Report Number EPA/738/F-01/007;
Stock Number PB2003-106520
Additional Subjects Pesticides ; Organophosphates ; Risk assessment ; Registration ; Risk management ; Toxicity ; Occupational safety and health ; Residues ; Regulations ; Mitigation ; Safety standards ; Environmental impacts ; Exoposure ; Drinking water ; US EPA ; Health effects ; Chlorpyrifos ; Preregistration
Internet Access
Description Access URL
Library Call Number Additional Info Location Last
EJED POD Internet Only OCSPP Chemical Library/Washington,DC 04/28/2009
NTIS  PB2003-106520 Some EPA libraries have a fiche copy filed under the call number shown. 07/26/2022
Collation 278p
EPA has assessed the risks of chlorpyrifos and reached an Interim Reregistration Eligibility Decision (IRED) for this organophosphate (OP) pesticide. Provided that risk mitigation measures are adopted, chlorpyrifos fits into its own 'risk cup'-its individual, aggregate risks are within acceptable levels. Chlorpyrifos also is eligible for reregistration, pending a full reassessment of the cumulative risk from all OPs. Used on a variety of food and feed crops, golf courses, as a non-structural wood treatment, and as an adult mosquitocide, chlorpyrifos residues in food and drinking water do not pose risk concerns. With mitigation eliminating virtually all homeowner uses, chlorpyrifos fits into its own 'risk cup.' With other mitigation measures, chlorpyrifos worker and ecological risks also will be below levels of concern for reregistration. EPA's next step under the Food Quality Protection Act (FQPA) is to complete a cumulative risk assessment and risk management decision encompassing all the OP pesticides, which share a common mechanism of toxicity. The interim decision on chlorpyrifos cannot be considered final until this cumulative assessment is complete.