PAN Pesticides Database - Chemicals

Picloram - 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 Picloram

Basic Identification Information About This Chemical
Chemical Name: Picloram
CAS Number: 1918-02-1
U.S. EPA PC Code: 005101
CA DPR Chem Code: 593
Molecular Weight: 241.46
Molecular Structure:
Use Type: Herbicide
Chem Class: Pyridinecarboxylic 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
Regulatory   Rangeland  
View All Crops and Sites
 
Other Names for this Chemical
About Chemical Synonyms
005101 (US EPA PC Code Text) , 00593 (CA DPR Chem Code Text) , 00593 (CA DPR Chem Code) , 1918-02-1 (CAS number) , 1918021 , 1918021 (CAS number without hyphens) , 2-Pyridinecarboxylic acid, 4-amino-3,5,6-trichloro- , 329 (PDP Code) , 4-Amino-3,5,6-trichloro-2-pyridinecarboxylic acid , 4-Amino-3,5,6-trichloropicolinic acid , 5101 (US EPA PC Code) , 593 (CA DPR Chem Code) , 593 (CA DPR Chem Code) , Amdon , Borolin , Grazon , K-Pin , Picloram , Picloram , Picloram (ANSI) , PICLORAM (PRESENT AS ACID) , Tordon
 
Products Containing This Chemical
Current and historic U.S. registered products
View U.S. Products All Products Currently Registered Products
 

Signs and Symptoms of Picloram 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 Picloram 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!

Route of Exposure

Symptoms

First Aid

Inhalation Burning sensation. Cough. Fresh air rest.
Skin Redness. Remove contaminated clothes. Rinse and then wash skin with water and soap.
Eyes Redness. Pain. First rinse with plenty of water for several minutes (remove contact lenses if easily possible) then take to a doctor.
Ingestion Burning sensation. Cough. Nausea. Refer for medical attention.
Notes for ICSC Information
Insufficient data are available on the effect of this substance on human health therefore utmost care must be taken. Carrier solvents used in commercial formulations may change physical and toxicological properties. Do NOT take working clothes home. Tordon Amdon ATCLP Borolin K-PIN Chloramp Grazon are trade names.
 

Toxicity Information for Picloram

  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
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
Picloram
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
No Consensus Value
Slightly Toxic

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
Picloram
IARC Carcinogens
U.S. NTP Carcinogens
California Prop 65 Known Carcinogens
U.S. EPA Carcinogens
TRI Carcinogen
3, Unclassifiable
Not Listed
Not Listed
E, Unlikely
Not Listed
 
Endocrine Disruption
Picloram
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
Picloram
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
Not Listed
Not Listed
Not Listed
Not Listed
 
Chemicals of Special Concern
Picloram
PAN Bad Actors
PAN Dirty Dozen list
Yes
Not Listed
 

Water Pollution Potential and Criteria for Picloram

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)
-
-
-
-
300.0
 
 

Water Standards and Criteria

U.S. National Drinking Water Standards and Health Criteria
g/L unless noted  
Maximum Contaminant Level (MCL) 500.0  
Maximum Contaminant Level Goal (MCLG) 500.0  
One Day Exposure Health Advisory Level 20,000  
Ten Day Exposure Health Advisory Level 20,000  
Lifetime Exposure Health Advisory Level  
Reference Dose 20.0 (g/kg/day)  
U.S. Drinking Water Equivalent Level 700.0  
Concentration with Lifetime Cancer Risk of 1 in 10,000  
Canada Drinking Water Standards and Criteria
g/L unless noted  
Maximum Acceptable Concentration (MAC) 190.0
Interim Maximum Acceptable Concentration (IMAC)
Aesthetic Objectives
Canadian Water Quality Guidelines for the Protection of Aquatic Life
g/L unless noted  
Fresh Water Guidelines 29 Notes: c
Salt Water Guidelines
Canadian Water Quality Guidelines for the Protection of Agricultural Water Uses
g/L unless noted  
Irrigation Water Guidelines
Livestock Water Guidelines 190
 

Regulatory Information for Picloram

International Regulatory Status

Registration in Selected Countries Registration in Selected Countries:
Picloram

 
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

No
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 Picloram

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 Development, Growth, Injury, Mortality, Population
Crustaceans Mortality
Fish Accumulation, Biochemistry, Growth, Mortality
Insects Mortality
Molluscs Development
Phytoplankton Behavior, Physiology, Population
Zooplankton Intoxication, Mortality, Reproduction
~ Un-Assigned Behavior, Development, Growth, 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 Slight to Moderate Toxicity
Zooplankton Slightly Toxic Slight Toxicity
~ Un-Assigned Slightly Toxic Slight Toxicity
View All Acute Summaries
 

Terrestrial Ecotoxicity

Summary of Acute Toxicity for Organism Group
Organism Group Average Acute Toxicity Acute Toxicity Range
HoneybeesSlightly ToxicSlightly 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 Picloram

CAS Number Relation Reason Chemical Name Chem Detail Registration Symptoms California Use Chem Use Type U.S. EPA Reg PAN Bad Actor
1918-02-1 Parent P Picloram View View View View Herbicide Yes Yes
Related 1 Picloram, alkanolamine salt View View View View Herbicide No Yes
Related 1 Picloram, diethanolamine salt View View View View Herbicide No Yes
26952-20-5 Related 1 Picloram, isooctyl ester View View View View Herbicide No Yes
Related 1 Picloram, isopropanolamine salt View View View View Herbicide No Yes
Related 1 Picloram, monoethanolamine salt View View View View Herbicide No Not Listed
2545-60-0 Related 1 Picloram, potassium salt View View View View Herbicide Yes Yes
Related 1 Picloram, triethanolamine salt View View View View Herbicide No Not Listed
35832-11-2 Related 1 Picloram, triethylamine salt View View View View Herbicide No Yes
6753-47-5 Related 1 Picloram, triisopropanolamine salt View View View View Herbicide Yes Yes
 
Working with the Information on this 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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