Active Ingredient: Methidathion
Human Health Risk Assessment and Mitigation
Documents and Activities

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Overview


Risk Characterization Documents (RCDs) estimate the nature and likelihood of adverse health effects in humans who may be exposed to pesticides.

NOTE: REGISTRATION OF METHIDATHION WAS CANCELLED BY US EPA IN 2014

  • Toxic Air Contaminant (TAC) Assessment
    • May 2007 – Director's Proposed Decision (PDF)
    • April 2007 – Scientific Review Panel's Findings (PDF)
    • February 2007 – Executive Summary (PDF)
    • February 2007 – Volume I: Health Risk Assessment (PDF)
    • February 2007 – Volume II: Exposure Assessment (PDF)
    • February 2007 – Volume III: Environmental Fate (PDF)
    • November 2006 – Office of Environmental Health Hazard Assessment's Findings (PDF)

Other Documents

  • August 2006 – Alternate Methidathion Application Air Concentration Estimates (PDF)
  • September 2002 – Effects of Mitigation Measures Proposed in Methidathion IRED on Exposure Estimates (PDF)
  • May 1994 – Airborne Concentrations of Methidathion and Methidaoxon in Central Tulare County from Sampling Conducted in June and July 1991
  • September 1988 – A Summary of Occupational Illnesses and Injuries Due to Coincidental Pesticide Exposure as Reported by Physicians in California in 1986 (PDF)
  • February 1984 – A Degradation Study of Dislodgeable Methidathion Residue on Orange Foliage in Fresno County (PDF)
  • February 1984 – A Degradation Study of Dislodgeable Methidathion Residue on Orange Foliage in Tulare County, California During May - June 1983 (PDF)
  • December 1983 – Potential Exposure of Loader/applicators to Methidathion (Supracide) During Applications to Citrus in Riverside County, California, in 1982 (PDF)
  • 1976 – A Study of Foliar Residues Following Application of Supracide to Orange Trees, Riverside County, June 1975, and Kern County, July 1975 (PDF)

For content questions, contact:

Ann Schaffner
Worker Health and Safety Branch
1001 I Street, P.O. Box 4015
Sacramento, CA 95812-4015
Phone: (916) 445-4222
E-mail: Ann.Schaffner@cdpr.ca.gov

Kara James
Pesticide Registration Branch
1001 I Street, P.O. Box 4015
Sacramento, CA 95812-4015
Phone: (916) 324-3523
E-mail: Kara.James@cdpr.ca.gov