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Dicamba - 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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Chemical ID
 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.
Poisoning Symptoms
 Signs and symptoms of poisoning, first aid, and links to treatment information for this chemical.
Toxicity
 Link to information on toxicity to humans, including carcinogenicity, reproductive and developmental toxicity, neurotoxicity, and acute toxicity.
Regulatory
 Links to world-wide registration status as well as regulatory information for the U.S. and California.
Water
 Water quality standards and physical properties affecting water contamination potential.
Ecotoxicity
 Toxicity to aquatic organisms.
Related Chems
 List of chemicals in the same family, including breakdown products, salts, esters, isomers, and other derivatives.
 

Chemical Identification and Use for Dicamba
Basic Identification Information About This Chemical
Chemical Name: Dicamba
CAS Number: 1918-00-9
U.S. EPA PC Code: 029801
CA DPR Chem Code: 200
Molecular Weight: 221.04
Molecular Structure:
Use Type: Herbicide
Chem Class: Benzoic acid
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
Landscape   Ornamental Turf   Right of Way   Unknown   Structural Pest Control  
View All Crops and Sites
 
Other Names for this Chemical
About Chemical Synonyms
00200 (CA DPR Chem Code Text) , 00200 (CA DPR Chem Code) , 029801 (US EPA PC Code Text) , 155 (PDP Code) , 1918-00-9 (CAS number) , 1918009 , 1918009 (CAS number without hyphens) , 2,5-Dichloro-6-methoxybenzoic acid , 2-Methoxy-3,6-dichlorobenzoic acid , 200 (CA DPR Chem Code) , 200 (CA DPR Chem Code) , 29801 (US EPA PC Code) , 3,6-Dichloro-2-methoxybenzoic acid , 3,6-Dichloro-o-anisic acid , Banex , Banlen , Banvel , Banvel 10G , Banvel D , Banvel XG , Benzoic acid, 3,6-dichloro-2-methoxy- , Compound B Dicamba , Dianat , Dicamba , Dicamba , Dicamba (ANSI) , DICAMBA (PRESENT AS ACID) , dicamba acide , Dicambe , Dikamba , MDBA , Mediben , o-Anisic acid, 3,6-dichloro- , VEL 58-CS-11 , Velsicol 58-CS-11 , Velsicol Compound "R"
 
Products Containing This Chemical
Current and historic U.S. registered products
View U.S. Products All Products Currently Registered Products
 

Signs and Symptoms of Dicamba 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.

Symptoms of Dicamba 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 Cough. Laboured breathing. Vomiting. Weakness. Fresh air rest. Refer for medical attention.
Skin Redness. Remove contaminated clothes. Rinse and then wash skin with water and soap.
Eyes Redness. Pain. Blurred vision. First rinse with plenty of water for several minutes (remove contact lenses if easily possible) then take to a doctor.
Ingestion (Further see Inhalation). Rinse mouth. Refer for medical attention.
Notes for ICSC Information
If the pesticide is present under the form of a formulation containing hydrocarbon solvents vomiting may not be induced. Carrier solvents used in commercial formulations may change physical and toxicological properties. Banvel Banex Dianat Fallowmaster Mediben Metambane Tracker Trooper and Velsicol are trade names. If the pesticide is formulated with an organic solvent also consult ICSC of the solvent used.
 

Toxicity Information for Dicamba

  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 Unclassifiable No Potential
 
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
 Dicamba
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		 III, Slightly Hazardous
Not Listed
Not Available

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
 Dicamba
IARC Carcinogens
U.S. NTP Carcinogens
California Prop 65 Known Carcinogens
U.S. EPA Carcinogens
TRI Carcinogen		 Not Listed
Not Listed
Not Listed
D, Unclassifiable, inadequate data
Not Listed
 
Endocrine Disruption
 Dicamba
Illinois EPA list
Keith list
Colborn list
Benbrook list
Danish Inert list
EU list		 Not Listed
Not Listed
Not Listed
Not Listed
Not Listed
Not Listed
 
Reproductive and Developmental Toxicity
 Dicamba
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
 Dicamba
PAN Bad Actors
PAN Dirty Dozen list		 Yes
Not Listed
 

Water Pollution Potential and Criteria for Dicamba

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) 		27,200
5.00
30.0
10.0
88.0 		 
 

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  
Ten Day Exposure Health Advisory Level  
Lifetime Exposure Health Advisory Level 4,000  
Reference Dose 500.0 (µg/kg/day)  
U.S. Drinking Water Equivalent Level 18,000  
Concentration with Lifetime Cancer Risk of 1 in 10,000  
Canada Drinking Water Standards and Criteria
 µg/L unless noted  
Maximum Acceptable Concentration (MAC) 120.0
Interim Maximum Acceptable Concentration (IMAC)
Aesthetic Objectives
Canadian Water Quality Guidelines for the Protection of Aquatic Life
 µg/L unless noted  
Fresh Water Guidelines 10 Notes: c,i
Salt Water Guidelines
Canadian Water Quality Guidelines for the Protection of Agricultural Water Uses
 µg/L unless noted  
Irrigation Water Guidelines .006
Livestock Water Guidelines 122
 

Regulatory Information for Dicamba

International Regulatory Status
Registration in Selected Countries Registration in Selected Countries:
Dicamba
 
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
Not Listed
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 Dicamba

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 Mortality
AquaticPlants Growth, Population
Crustaceans Mortality
Fish Mortality
Phytoplankton Enzyme(s), Physiology, Population, Reproduction
Zooplankton Intoxication, Morphology, Mortality
~ Un-Assigned Mortality
View All Aquatic Ecotoxicity Studies and References
 
Summary of Acute Toxicity for Organism Group
Organism Group Average Acute Toxicity Acute Toxicity Range
Amphibians Not Acutely Toxic Not Acutely Toxic
Crustaceans Not Acutely Toxic Not Acutely Toxic
Fish Slightly Toxic Not Acutely Toxic to Slightly Toxic
Zooplankton Slightly Toxic Not Acutely Toxic to Moderate Toxicity
View All Acute Summaries
 

Terrestrial Ecotoxicity
Summary of Acute Toxicity for Organism Group
Organism Group Average Acute Toxicity Acute Toxicity Range
HoneybeesSlightly ToxicSlightly to Moderately 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 Dicamba
CAS Number Relation Reason Chemical Name Chem Detail Registration Symptoms California Use Chem Use Type U.S. EPA Reg PAN Bad Actor
1918-00-9 Parent P Dicamba View View View View Herbicide Yes Yes
Related 5a 5-hydroxy-dicamba View View View View Herbicide, Breakdown product No Not Listed
8068-77-7 Related 13 Dicamba with 2,4-D View View View View Herbicide Yes Not Listed
8073-53-8 Related 13 Dicamba with 2,4-D & Silvex View View View View Herbicide No Not Listed
Related 1 Dicamba, aluminium salt View View View View Herbicide No Not Listed
Related 1 Dicamba, aminopropylmorpholine salt View View View View Herbicide No Not Listed
Related 1 Dicamba, butoxyethyl ester View View View View Herbicide No Not Listed
25059-78-3 Related 1 Dicamba, diethanolamine salt View View View View Herbicide Yes Not Listed
104040-79-1 Related 1 Dicamba, diglycolamine salt View View View View Herbicide Yes Not Listed
2300-66-5 Related 1 Dicamba, dimethylamine salt View View View View Herbicide Yes Yes
Related 15 Dicamba, dimethylamine salt, other related View View View View Herbicide No Not Listed
55871-02-8 Related 1 Dicamba, isopropylamine salt View View View View Herbicide Yes Not Listed
6597-78-0 Related 1 Dicamba, methyl ester View View View View Herbicide No Not Listed
53404-28-7 Related 1 Dicamba, monoethanolamine salt View View View View Herbicide No Not Listed
Related 15 Dicamba, monoethanolamine salt, other related View View View View Herbicide No Not Listed
Related 8 Dicamba, other related View View View View Herbicide No Not Listed
10007-85-9 Related 1 Dicamba, potassium salt View View View View Herbicide Yes Not Listed
1982-69-0 Related 1 Dicamba, sodium salt View View View View Herbicide Yes Yes
53404-29-8 Related 1 Dicamba, triethanolamine salt View View View View Herbicide No Not Listed
 
Working with the Information on this Page

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

Any underlined term with a book icon has additional information.

* 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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Citation: Kegley, S.E., Hill, B.R., Orme S., Choi A.H., PAN Pesticide Database, Pesticide Action Network, North America (San Francisco, CA, 2010), http:www.pesticideinfo.org.
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