Information on Methidathion
Find information on the registration status, continuous evaluation and mitigation measures in California to regulate this active ingredient. An active ingredient is the chemical that makes a pesticide work on a target pest.
Active Ingredient: Methidathion
Type of Pesticide: No actively registered products
California Registration: No
EPA Registration: No
Fumigant: No
California Restricted Material: Yes
Toxic Air Contaminant (TAC): Yes
Volatile Organic Compound (VOC): No
Potential Groundwater Contaminant: No
Reevaluation Status: None
Chemical Class: Organophosphate
DPR Chemical Code: 1689
Risk Evaluation and Mitigation Documents
Historic Documents
- 2016 – A Comparison of ToxCast Test Results with In Vivo and other In Vitro Endpoints for Neuro, Endocrine, and Developmental Toxicities: A Case Study Using Endosulfan and Methidathion
- 2014 – A Comparison of ToxCast In Vitro Testing with In Vivo Endpoints for Endocrine and Developmental Toxicities: A Case Study Using Endosulfan and Methidathion
- May 2007 – Director's Proposed Decision
- April 2007 – Scientific Review Panel's Findings
- February 2007 – Executive Summary
- February 2007 – Volume I: Health Risk Assessment
- February 2007 – Volume II: Exposure Assessment
- February 2007 – Volume III: Environmental Fate
- November 2006 – Office of Environmental Health Hazard Assessment's Findings
- August 2006 – Alternate Methidathion Application Air Concentration Estimates
- September 2002 – Effects of Mitigation Measures Proposed in Methidathion IRED on Exposure Estimates
- 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
- February 1984 – A Degradation Study of Dislodgeable Methidathion Residue on Orange Foliage in Fresno County
- February 1984 – A Degradation Study of Dislodgeable Methidathion Residue on Orange Foliage in Tulare County, California During May - June 1983
- December 1983 – Potential Exposure of Loader/applicators to Methidathion (Supracide) During Applications to Citrus in Riverside County, California, in 1982
- 1976 – A Study of Foliar Residues Following Application of Supracide to Orange Trees, Riverside County, June 1975, and Kern County, July 1975