Active Ingredient: Malathion
Human Health Risk Assessment and Mitigation
Documents and Activities
Back to Human Health Risk Assessment and Mitigation
Overview
- Name: Malathion
- DPR Chemical Code: 367
- Chemical Class: Organophosphate
- Pesticide Types Registered: Insecticide
- Fumigant: No
- California Restricted Material: No
- Toxic Air Contaminant (TAC): No
- Volatile Organic Compound (VOC) Regulations: No
- Potential Groundwater Contaminant: Yes
- Reevaluation: Not applicable
Risk Characterization Documents (RCDs) estimate the nature and likelihood of adverse health effects in humans who may be exposed to pesticides.
- February 1993 – Dietary Exposure Assessment (PDF)
- October 1987 – Exposure Assessment Document (PDF)
- July 1987 – Risk Characterization Document (PDF)
Other Documents
- October 2016 – Use Information and Air Monitoring Recommendation for the Organophosphate Pesticide Active Ingredients Chlorpyrifos, Diazinon, and Malathion: Seasonal Ambient Air Monitoring Studies in Kern County, Fresno and Tulare Counties, and Imperial County (PDF)
- February 2016 – Ambient Monitoring Report (PDF)
- April 2004 – Forensic Review and Sampling of PPE/Respiratory Protective Equipment Associated with Priority Investigation 3-RIV-04 (PDF)
- June 2003 – Human Subjects Protocol No. HS-03-021 (Influence of Moisture on the Transferability of Malathion Applied on Strawberries) (PDF)
- March 2003 – Report of Ambient Air Monitoring for Pesticides in Lompoc, California
- August 2002 – Rice Pesticides Monitoring Data, Final Update (PDF)
- June 2002 – Rice Pesticides Program Monitoring Data, First Update (PDF)
- November 2001 – Hand Residue Sampling Methods Validation: Project 9901 (PDF)
- February 1999 – Final Report for the 1998 Malathion Air Monitoring (PDF)
- 1998 – Hazard Assessment of the Insecticide Malathion to Aquatic Life in the Sacramento-San Joaquin River System (PDF)
- December 1997 – Environmental Monitoring Results of the Mediterranean Fruit Fly Eradication Program, Ventura County, 1994-95
- 1996 – Use of Spot Urine Sample Results in Physiologically Based Pharmacokinetic Modeling of Absorbed Malathion Doses in Humans (Published in Biomarkers for Agrochemicals and Toxic Substances) (PDF)
- September 1996 – Environmental Monitoring Results of the Mediterranean Fruit Fly Eradication Program, Riverside Count 1994
- June 1996 – Physiologically-Based Pharmacokinetic (PB-PK) Modeling for Dermal Absorptions of Pesticides (Malathion) in Man (PDF)
- August 1995 – Removal of Malathion Residues from Lettuce for Medfly Eradication Projects
- April 1995 – Validation of a Physiologically Based Pharmacokinetic (PB-PK) Model Used to Simulate Absorbed Malathion Doses in Humans (PDF)
- November 1994 – Estimating Malathion Doses in California's Medfly Eradication Campaign Using a Physiologically Based Pharmacokinetic Model (ACS Advances in Chemistry Series 241) (PDF)
- April 1991 – Situational Chemical Exposure Studies Provide Human Metabolism and Urine Clearance Data for Chlorpyrifos, Dimethoate, and Malathion (PDF)
- March 1991 – Environmental Monitoring of Malathion Aerial Applications Used to Eradicate Mediterranean Fruit Flies in Southern California, 1990 (PDF)
- May 1989 – Worker Exposure to Malathion, Sulfur, and Nuisance Dust During Date Harvest (PDF)
- April 1982 – A Characterization of Sequential Aerial Malathion Applications in the Santa Clara Valley of California, 1981 (PDF)
- September 1976 – Human Health and Safety Problems Occurring in California During 1975 Involving Employed Persons Using Malathion (PDF)
Enforcement Letters
- March 2010 – ENF 2010-04 – Updates to Volume 3, Restricted Materials and Permitting, Pesticide Use Enforcement Program Standards Compendium
- April 2007 – ENF 2007-015 – 2007 Rice Pesticides Program
- March 2006 – ENF 2006-008 – Rice Pesticides Program 2006
- March 2005 – ENF 2005-015 – Rice Pesticides Program 2005
- April 2004 – ENF 2004-006 – Rice Pesticides Program 2004
- March 2003 – ENF 2003-011 – Rice Pesticides Program 2003
- April 2002 – ENF 2002-012 – Rice Pesticides Program for 2002
- July 2001 – ENF 2001-034 – Unreported and Prohibited Use of Malathion and Bentazon (PDF)
- April 2001 – ENF 2001-017 – Rice Pesticides Program for 2001
- Pesticide Product Database
- Human Health Assessment Branch Memos
- Human Health Assessment Branch Publications, Posters/Abstracts and Presentations
- Worker Health and Safety Reports and Memos
- Environmental Monitoring Branch Publications
- Air Monitoring Network
- Pesticide Use Reporting (PUR)
- California Pesticide Illness Query (CalPIQ)
- Environmental Justice (EJ)
- OEHHA Proposition 65 Information
- U.S. EPA Pesticide Chemical Search
- PubChem-Chemical Information
For document retrieval, please submit a request at our Public Records Portal (NextRequest).
For content questions, contact:
Christine Herrera
Worker Health and Safety Branch
1001 I Street, P.O. Box 4015
Sacramento, CA 95812-4015
Phone: (916) 445-4261
E-mail: Christine.Herrera@cdpr.ca.gov
Brenna McNabb
Pesticide Registration Branch
1001 I Street, P.O. Box 4015
Sacramento, CA 95812-4015
Phone: (916) 445-0179
E-mail:
Brenna.McNabb@cdpr.ca.gov