PAN Pesticides Database - Chemicals

Diuron - Identification, toxicity, use, water pollution potential, ecological toxicity and regulatory information

Note: See Working with the Information on this Page section below for important notes about this data.

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Identifying information, including synonyms, ID numbers, use type, chemical classification, a link to a list of all products containing this chemical and a list of the top crops this pesticide is used on in California.
Signs and symptoms of poisoning, first aid, and links to treatment information for this chemical.
Link to information on toxicity to humans, including carcinogenicity, reproductive and developmental toxicity, neurotoxicity, and acute toxicity.
Links to world-wide registration status as well as regulatory information for the U.S. and California.
Water quality standards and physical properties affecting water contamination potential.
Toxicity to aquatic organisms.
List of chemicals in the same family, including breakdown products, salts, esters, isomers, and other derivatives.
 

Chemical Identification and Use for Diuron

Basic Identification Information About This Chemical
Chemical Name: Diuron
CAS Number: 330-54-1
U.S. EPA PC Code: 035505
CA DPR Chem Code: 231
Molecular Weight: 233.1
Molecular Structure:
Use Type: Herbicide
Chem Class: Urea
View Related Chemicals
 
Additional Resources About This Chemical Class and Use Type

See the Global Pesticide Resources page for many additional links.

Historical Use of this Chemical
Top five crops and sites for this pesticide in California
Right of Way   Oranges   Alfalfa for Forage   Landscape   Tangerines  
View All Crops and Sites
 
Other Names for this Chemical
About Chemical Synonyms
00231 (CA DPR Chem Code Text) , 00231 (CA DPR Chem Code) , 032 (PDP Code) , 035505 (US EPA PC Code Text) , 231 (CA DPR Chem Code) , 231 (CA DPR Chem Code) , 3-(3,4-Dichlorophenyl)-1,1-dimethylurea , 330-54-1 (CAS number) , 330541 , 330541 (CAS number without hyphens) , 35505 (US EPA PC Code) , Cekiuron , Crisuron , Dailon , DCMU , Di-on , Diater , Dichlorfenidim (USSR) , Direx 4L , Diurex , Diurol , Diurom , DiuromĘ , Diuron , Diuron , Diuron (ANSI) , Diur?o , Drexel Diuron 4L , Dynex , Karmex , Krovar, component of (with 012301) , N'-(3,4-Dichlorophenyl)-N,N-dimethylurea , Unidron , Urea, 3-(3,4-dichlorophenyl)-1,1-dimethyl- , Urea, N'-(3,4-dichlorophenyl)-N,N-dimethyl- , Ureabor, component of (with 011104) , Vonduron
 
Products Containing This Chemical
Current and historic U.S. registered products
View U.S. Products All Products Currently Registered Products
 

Signs and Symptoms of Diuron Poisoning

NOTE! There may be other diseases and chemicals that have similar symptoms.

If you have a poisoning emergency in the United States call 1-800-222-1222.
If the victim has collapsed or is unconscious, call 911.

Diuron is a Urea compound.

Report a Poisoning

Symptoms of Poisoning with Urea Compounds
Find Products Containing this Chemical

Systemic toxicity is unlikely unless large amounts have been ingested.
- Many substituted ureas are irritating to eyes, skin and mucous membranes.
- Coughing and shortness of breath.
- Nausea, vomiting, diarrhea, headache, confusion and electrolyte depletion.
- Protein metabolism disturbances, moderate emphysema, and weight loss with chronic exposure.

Source for Group Symptoms: Recognition and Management of Pesticide Poisoning, 5th edition, U.S. EPA, Chapter 13.

Treatment for Urea Poisoning

See: Recognition and Management of Pesticide Poisoning, 5th edition, U.S. EPA, Chapter 13, page 123.

 
 

Toxicity Information for Diuron

  Note: Information for many chemicals is incomplete and may not be fully representative of effects on humans. Why?

Summary Toxicity Information

PAN Bad Actor
Chemical
1
Acute
Toxicity
2
Carcinogen Cholinesterase
Inhibitor
Ground
Water Contaminant
Developmental or
Reproductive Toxin
Endocrine
Disruptor
Slight
No
Suspected
 
Indicates high toxicity in the given toxicological category. Indicates no available weight-of-the-evidence summary assessment. For additional information on toxicity from scientific journals or registration documents, see the "Additional Resources for Toxicity " section of the chemical detail page.
1. PAN Bad Actors are chemicals that are one or more of the following: highly acutely toxic, cholinesterase inhibitor, known/probable carcinogen, known groundwater pollutant or known reproductive or developmental toxicant. NOTE! Because there are no authoritative lists of Endocrine Disrupting (ED) chemicals, EDs are not yet considered PAN Bad Actor chemicals.
2. The acute toxicity reported on this page is of the pure chemical ingredient only and may not reflect the acute toxicity of individual pesticide products. To view acute toxicity of individual products, click on 'View Products' link in the 'Chemical Identification' section above.

Additional Resources about the Toxicity of this Chemical

See the Global Pesticide Resources page for many additional links.

Detailed Toxicity Information

Acute Toxicity 2
Diuron
WHO Acute Hazard
TRI Acute Hazard
Material Safety Data Sheets
Acute rating from U.S. EPA product label
U.S. NTP Acute Toxicity Studies
      View Studies
Cholinesterase Inhibitor
U, Unlikely to be Hazardous
Not Listed
Not Available
Slightly Toxic
No NTP Studies

No
2. The acute toxicity reported on this page is of the pure chemical ingredient only and may not reflect the acute toxicity of individual pesticide products. To view acute toxicity of individual products, click on 'View Products' link in the 'Chemical Identification' section above.
 
Cancer Information
Diuron
IARC Carcinogens
U.S. NTP Carcinogens
California Prop 65 Known Carcinogens
U.S. EPA Carcinogens
TRI Carcinogen
Not Listed
Not Listed
Yes
Known/Likely
Not Listed
 
Endocrine Disruption
Diuron
Illinois EPA list
Keith list
Colborn list
Benbrook list
Danish Inert list
EU list
Not listed
Not listed
Not listed
Not listed
Not listed
Yes
 
Reproductive and Developmental Toxicity
Diuron
CA Prop 65 Developmental Toxin
U.S. TRI Developmental Toxin
CA Prop 65 Female Reproductive Toxin
CA Prop 65 Male Reproductive Toxin
U.S. TRI Reproductive Toxin
Not Listed
Yes
Not Listed
Not Listed
Not Listed
 
Chemicals of Special Concern
Diuron
PAN Bad Actors
PAN Dirty Dozen list
Yes
Not Listed
 

Water Pollution Potential and Criteria for Diuron

Water Pollution Potential

PAN Ground Water Contaminant Rating Known
 
Physical Property Data Related to Water Contamination Potential
Water Solubility (Avg, mg/L)
Adsorption Coefficient (Koc)
Hydrolysis Half-life (Avg, Days)
Aerobic Soil Half-life (Avg, Days)
Anaerobic Soil Half-life (Avg, Days)
36.0
499.0
1,290
372.0
995.0
 
 

Water Standards and Criteria

U.S. National Drinking Water Standards and Health Criteria
µg/L unless noted  
Maximum Contaminant Level (MCL) 0  
Maximum Contaminant Level Goal (MCLG)  
One Day Exposure Health Advisory Level 1,000  
Ten Day Exposure Health Advisory Level 1,000  
Lifetime Exposure Health Advisory Level  
Reference Dose 3.00 (µg/kg/day)  
U.S. Drinking Water Equivalent Level 100.0  
Concentration with Lifetime Cancer Risk of 1 in 10,000 200.0  
Canada Drinking Water Standards and Criteria
µg/L unless noted  
Maximum Acceptable Concentration (MAC) 150.0
Interim Maximum Acceptable Concentration (IMAC)
Aesthetic Objectives
 

Regulatory Information for Diuron

International Regulatory Status

Registration in Selected Countries Registration in Selected Countries:
Diuron

 
UNEP Persistent Organic Pollutant (POP)
UNEP Prior Informed Consent Chemical (PIC)
WHO Obsolete Pesticide
Not Listed
Not Listed
Not Listed
 

U.S. and California Regulatory Status

U.S. EPA Registered
U.S. EPA Hazardous Air Pollutant
U.S. EPA Minimum Risk Pesticide (25b list)

CA Registered
CA Groundwater Contaminant
CA Toxic Air Contaminant
Yes
Not Listed
No

Yes
Known
Not Listed
 

Maximum Tolerance and Residue Levels

Codex Alimentarius
   (UN FAO Maximum Residue Limits)
U.S. Maximum Tolerance Levels
European Union Maximum Residue Levels
Go to web site

Go to web site

Go to web site
 

Ecotoxicity for Diuron

Note! Information for many chemicals is incomplete and may not be fully representative of effects on the environment. Why? Click on underlined terms for definitions and additional information.

Aquatic Ecotoxicity

All Toxic Effects for Organism Group
Organism Group Effects Noted
Amphibians Biochemistry, Development, Growth, Hormone(s), Mortality, Population, Reproduction
Annelida Growth, Mortality, Reproduction
AquaticPlants Biochemistry, Cell(s), Enzyme(s), Growth, Mortality, Physiology, Population
Cnidaria Biochemistry, Population
Crustaceans Behavior, Mortality, Physiology
Echinoderms Development, Reproduction
Fish Accumulation, Behavior, Biochemistry, Enzyme(s), Growth, Histology, Mortality, Physiology, Reproduction
Insects Behavior, Development, Growth, Mortality
MarineBenthicCommunity Development
Molluscs Accumulation, Cell(s), Development, Genetics, Growth, Intoxication, Morphology, Mortality
NematodesandFlatworms Population
Phytoplankton Accumulation, Biochemistry, Cell(s), Ecosystem Process, Enzyme(s), Genetics, Growth, Mortality, Physiology, Population, Reproduction
TerrestrialPlants Growth
Zooplankton Accumulation, Development, Growth, Intoxication, Mortality, Physiology, Population, Reproduction
~ Un-Assigned Biochemistry, Development, Enzyme(s), Growth, Mortality, Physiology, Population, Reproduction
View All Aquatic Ecotoxicity Studies and References
 
Summary of Acute Toxicity for Organism Group
Organism Group Average Acute Toxicity Acute Toxicity Range
Amphibians Slightly Toxic Slight Toxicity
Crustaceans Moderately Toxic Slight to Moderate Toxicity
Fish Slightly Toxic Slight to High Toxicity
Insects Moderately Toxic Moderate Toxicity
Molluscs Slightly Toxic Slight to Moderate Toxicity
Zooplankton Moderately Toxic Slight to High Toxicity
~ Un-Assigned Moderately Toxic Moderate to High Toxicity
View All Acute Summaries
 

Terrestrial Ecotoxicity

Summary of Acute Toxicity for Organism Group
Organism Group Average Acute Toxicity Acute Toxicity Range
HoneybeesNot AcutelyT ToxicNot AcutelyT Toxic
Note: Population-level effects on honeybees may occur even if a pesticide has low acute toxicity. For example, certain pesticides interfere with honeybee reproduction, ability to navigate, or temperature regulation, any of which can have an effect on long-term survival of honeybee colonies. The neonicotinoids, pyrethroids and keto-enol pesticides are some types of pesticides causing one or more of these effects.
Honeybee Chronic Toxicity

Sorry, no honeybee chronic toxicity data available for this chemical. Try related chemicals.

Related Chemicals for Diuron

CAS Number Relation Reason Chemical Name Chem Detail Registration Symptoms California Use Chem Use Type U.S. EPA Reg PAN Bad Actor
330-54-1 Parent P Diuron View View View View Herbicide Yes Yes
96-76-1 Related 5a 3,4-dichloro aniline View View View View Breakdown product No Not Listed
Related 5a 3,4-Dichloromethylphenyl urea View View View View Breakdown product No Not Listed
2327-02-8 Related 5a 3,4-Dichlorophenyl urea View View View View Breakdown product No Not Listed
Related 5a m-CPDMU View View View View No Not Listed
 
Working with the Information on this Page

Click on underlined terms for definitions or go to the Pesticide Tutorial overview page.

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* Data marked with an asterisk indicates that this chemical is not explicitly listed on the corresponding list. Instead, it belongs to a group of chemicals that IS designated on the list. For example, if an agency assigns a classification of reproductive toxicant to "mercury compounds", that classification is applied to all mercury compounds in the PAN Pesticide database, which are then marked with an asterisk.

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