PAN Pesticides Database - Chemicals

Dioxin (2,3,7,8-TCDD) - 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 Dioxin (2,3,7,8-TCDD)

Basic Identification Information About This Chemical
Chemical Name: Dioxin (2,3,7,8-TCDD)
CAS Number: 1746-01-6
U.S. EPA PC Code: 600000 (US EPA PC Code for this chemical as an impurity)
CA DPR Chem Code: 4068
Molecular Weight: 321.96
Molecular Structure:
Use Type: Combustion byproduct , Impurity
Chem Class: Organochlorine
View Related Chemicals
 
Additional Resources About This Chemical Class and Use Type
 
Other Names for this Chemical
About Chemical Synonyms
(US EPA PC Code (US EPA PC Code for this chemical as an impurity)) , 1746-01-6 (CAS number) , 1746016 , 1746016 (CAS number without hyphens) , 2,3,7,8-TCDD (as impurity or contaminant) , 2,3,7,8-TCDD (as impurity or contaminant) , 2,3,7,8-TCDD Dioxin , 2,3,7,8-Tetrachlorodibenzo-1,4-dioxin , 2,3,7,8-Tetrachlorodibenzo-p -dioxin (TCDD) , 2,3,7,8-Tetrachlorodibenzo-p-dioxin , 2,3,7,8-Tetrachlorodibenzo-p-dioxin (TCDD) , 2,3,7,8-Tetrachlorodibenzo-para- dioxin (TCDD) , 2,3,7,8-Tetrachlorodibenzo-para-dioxin , 2,3,7,8-Tetrachlorodibenzo-para-dioxin (TCDD) , 2,3,7,8-Tetrachlorodibenzo[b,e][1,4]dioxin , 2,3,7,8-tetraclorodibenzo-p-dioxin , 4068 (CA DPR Chem Code) ) , 600000 (US EPA PC Code Text (US EPA PC Code for this chemical as an impurity)) , Dibenzo(b,e)(1,4)dioxin, 2,3,7,8-tetrachloro- , Dibenzo-p-dioxin, 2,3,7,8-tetrachloro- , Dibenzo-p-dioxin, 2,3,7,8-tetrachloro- , Dibenzo-p-dioxin, 2,3,7,8-tetrachloro- (6CI, 7CI, 8CI) , Dioxin , Dioxin (as impurity or contaminant) , Dioxin (2,3,7,8-TCDD) , DIOXIN (CA DPR Chem Code Text ) , Dioxin2378TCDD , Dioxins , Polychlorinated dibenzo-p-dioxins , TCDBD , TCDD
 
Products Containing This Chemical
Current and historic U.S. registered products
View U.S. Products All Products Currently Registered Products
 

Signs and Symptoms of Dioxin (2,3,7,8-TCDD) 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 Dioxin (2,3,7,8-TCDD) 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! AVOID ALL CONTACT!
General First Aid: IN ALL CASES CONSULT A DOCTOR!

Route of Exposure

Symptoms

First Aid

Inhalation Chloracne. Symptoms may be delayed. Fresh air rest. Refer for medical attention.
Skin MAY BE ABSORBED! Redness. Pain. (See Inhalation). Remove contaminated clothes. Rinse and then wash skin with water and soap. Refer for medical attention.
Eyes Redness. Pain. First rinse with plenty of water for several minutes (remove contact lenses if easily possible) then take to a doctor.
Ingestion (See Inhalation). Give a slurry of activated charcoal in water to drink. Induce vomiting (ONLY IN CONSCIOUS PERSONS!). Refer for medical attention.
Notes for ICSC Information
This chemical is only produced for research purposes but could be generated as a by-product from chemical processes or fires.
 

Toxicity Information for Dioxin (2,3,7,8-TCDD)

  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
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.

Detailed Toxicity Information

This Chemical
Parent Chemical 
Acute Toxicity 2
Dioxin (2,3,7,8-TCDD) Polychlorinated dibenzo-p-dioxins
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
Not Listed
Not Listed
Not Available
No Consensus Value
Highly Toxic

No
Not Listed
Not Listed
Not Available
No Consensus Value
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
Dioxin (2,3,7,8-TCDD) Polychlorinated dibenzo-p-dioxins
IARC Carcinogens
U.S. NTP Carcinogens
California Prop 65 Known Carcinogens
U.S. EPA Carcinogens
TRI Carcinogen
1, Known
Known
Yes
Not Listed
Not Listed
3, Unclassifiable
Not Listed
Yes
Not Listed
Not Listed
 
Endocrine Disruption
Dioxin (2,3,7,8-TCDD) Polychlorinated dibenzo-p-dioxins
Illinois EPA list
Keith list
Colborn list
Benbrook list
Danish Inert list
EU list
Not Listed
Yes
Yes
Not Listed
Not listed
Yes
Not Listed
Not Listed
Yes
Not Listed
Not listed
Not listed
 
Reproductive and Developmental Toxicity
Dioxin (2,3,7,8-TCDD) Polychlorinated dibenzo-p-dioxins
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
Not Listed
Not Listed
Not Listed
Not Listed
Yes
Not Listed
Not Listed
Not Listed
Not Listed
 
Chemicals of Special Concern
Dioxin (2,3,7,8-TCDD) Polychlorinated dibenzo-p-dioxins
PAN Bad Actors
PAN Dirty Dozen list
Yes
Yes
Not Listed
 

Water Pollution Potential and Criteria for Dioxin (2,3,7,8-TCDD)

Water Pollution Potential

This Chemical
Parent Chemical
  Dioxin (2,3,7,8-TCDD) Polychlorinated dibenzo-p-dioxins
PAN Ground Water Contaminant Rating Insufficient Data Insufficient Data
 

Water Standards and Criteria

This Chemical
Parent Chemical
U.S. National Drinking Water Standards and Health Criteria
g/L unless noted  
  Dioxin (2,3,7,8-TCDD) Polychlorinated dibenzo-p-dioxins
Maximum Contaminant Level (MCL) 0.0000  
Maximum Contaminant Level Goal (MCLG) 0  
One Day Exposure Health Advisory Level 0.0010  
Ten Day Exposure Health Advisory Level 0.0001  
Lifetime Exposure Health Advisory Level  
Reference Dose 0.0000 (g/kg/day)  
U.S. Drinking Water Equivalent Level 0.0000  
Concentration with Lifetime Cancer Risk of 1 in 10,000 0.0000  
U.S. National Water Quality Criteria
g/L unless noted  
  Dioxin (2,3,7,8-TCDD) Polychlorinated dibenzo-p-dioxins
Fresh Water Quality Criteria Continuous Exposure  
Fresh Water Quality Criteria Maximum Peak  
Salt Water Quality Criteria Continuous Exposure
Salt Water Quality Criteria Max
Human Consumption of Organisms from Water Source 0.0000 Notes: c
Human Consumption of Water and Organisms from Water Source 0.0000 Notes: c
Taste and Odor Criteria
 

Regulatory Information for Dioxin (2,3,7,8-TCDD)

International Regulatory Status

This Chemical
Parent Chemical 
 
UNEP Persistent Organic Pollutant (POP)
UNEP Prior Informed Consent Chemical (PIC)
WHO Obsolete Pesticide
Yes

Not Listed
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
No
Yes
No

No
Not Listed
HAPTAC, Indus
No
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 Dioxin (2,3,7,8-TCDD)

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

Terrestrial Ecotoxicity

Summary of Acute Toxicity for Organism Group

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

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 Dioxin (2,3,7,8-TCDD)

CAS Number Relation Reason Chemical Name Chem Detail Symptoms California Use Chem Use Type U.S. EPA Reg PAN Bad Actor
Parent P Polychlorinated dibenzo-p-dioxins View View View Impurity No Yes
1746-01-6 Related 15 Dioxin (2,3,7,8-TCDD) View View View Impurity No Yes
 
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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