PAN Pesticides Database - Chemicals

Linuron - 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 Linuron

Basic Identification Information About This Chemical
Chemical Name: Linuron
CAS Number: 330-55-2
U.S. EPA PC Code: 035506
CA DPR Chem Code: 361
Molecular Weight: 249.1
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
Carrots   Celery   Asparagus   Outdoor Propagation Nursery   Outdoor Flower Nursery  
View All Crops and Sites
 
Other Names for this Chemical
About Chemical Synonyms
00361 (CA DPR Chem Code Text) , 00361 (CA DPR Chem Code) , 035506 (US EPA PC Code Text) , 1-Methoxy-1-methyl-3-(3,4-dichlorophenyl)urea , 129 (PDP Code) , 3-(3,4-Dichlorophenyl)-1-methoxy-1-methylurea , 330-55-2 (CAS number) , 330552 , 330552 (CAS number without hyphens) , 35506 (US EPA PC Code) , 361 (CA DPR Chem Code) , 361 (CA DPR Chem Code) , Afalon , Cephalon , DuPont 326 , Garnitan , H 326 , HOE 2810 , Linex 4L , Linex 50% DF , Linorox , Linurex , Linurom , LinuromĘ , Linuron , Linuron , Linuron (ANSI) , Linur?o , Lorox , Lorox DF , Lorox L , Methoxydiuron , N-(3,4-Dichlorophenyl)-N'-methoxy-N'-methylurea , Premalin , Sarclex , Urea, 1-(3,4-dichlorophenyl)-3-methoxy-3-methyl- , Urea, 3-(3,4-dichlorophenyl)-1-methoxy-1-methyl- , Urea, N'-(3,4-dichlorophenyl)-N-methoxy-N-methyl-
 
Products Containing This Chemical
Current and historic U.S. registered products
View U.S. Products All Products Currently Registered Products
 

Signs and Symptoms of Linuron 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.

Linuron 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.

 
Symptoms of Linuron Exposure from the International Chemical Safety Cards (ICSC)

Report a Poisoning

View full ICSC Cards: English   Español   Française   Chinese   Dutch   Finnish   German   Hungarian   Japanese   Swahili   Thai   Urdu  
NOTE! PREVENT DISPERSION OF DUST! AVOID EXPOSURE OF ADOLESCENTS AND CHILDREN!

Route of Exposure

Symptoms

First Aid

Inhalation Fresh air rest.
Skin Rinse skin with plenty of water or shower.
Eyes First rinse with plenty of water for several minutes (remove contact lenses if easily possible) then take to a doctor.
Ingestion Rinse mouth. Rest. Refer for medical attention.
Notes for ICSC Information
If the substance is formulated with solvent(s) also consult the card(s) (ICSC) of the solvent(s). Carrier solvents used in commercial formulations may change physical and toxicological properties. Afalon Garnitan Linex Linorox Linurex Lorex Sarclex and Scarclex are trade names.
 

Toxicity Information for Linuron

  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 Possible No Potential
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
Linuron
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
Linuron
IARC Carcinogens
U.S. NTP Carcinogens
California Prop 65 Known Carcinogens
U.S. EPA Carcinogens
TRI Carcinogen
Not Listed
Not Listed
Not Listed
C, Possible
Not Listed
 
Endocrine Disruption
Linuron
Illinois EPA list
Keith list
Colborn list
Benbrook list
Danish Inert list
EU list
Not listed
Not listed
Yes
Not listed
Not listed
Yes
 
Reproductive and Developmental Toxicity
Linuron
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
Yes
Yes
Not Listed
Not Listed
Yes
 
Chemicals of Special Concern
Linuron
PAN Bad Actors
PAN Dirty Dozen list
Yes
Not Listed
 

Water Pollution Potential and Criteria for Linuron

Water Pollution Potential

PAN Ground Water Contaminant Rating Potential
 
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)
77.0
341.0
262.0
22.0
102.0
 
 

Water Standards and Criteria

Canadian Water Quality Guidelines for the Protection of Aquatic Life
µg/L unless noted  
Fresh Water Guidelines 7.0 Notes: c
Salt Water Guidelines Insufficien
Canadian Water Quality Guidelines for the Protection of Agricultural Water Uses
µg/L unless noted  
Irrigation Water Guidelines .071
Livestock Water Guidelines
 

Regulatory Information for Linuron

International Regulatory Status

Registration in Selected Countries Registration in Selected Countries:
Linuron

 
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
Potential
In Evaluation
 

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 Linuron

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

CAS Number Relation Reason Chemical Name Chem Detail Registration Symptoms California Use Chem Use Type U.S. EPA Reg PAN Bad Actor
330-55-2 Parent P Linuron View View View View Herbicide Yes Yes
 
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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