PAN Pesticides Database - Chemicals

Atrazine - 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 Atrazine

Basic Identification Information About This Chemical
Chemical Name: Atrazine
CAS Number: 1912-24-9
U.S. EPA PC Code: 080803
CA DPR Chem Code: 45
Molecular Weight: 215.68
Molecular Structure:
Use Type: Herbicide
Chem Class: Triazine
View Related Chemicals
 
Additional Resources About This Chemical Class and Use Type
Historical Use of this Chemical
Top five crops and sites for this pesticide in California
Corn   Sudangrass for Forage   Corn for Forage   Corn, Field, Dent   Uncultivated Agricultural Area  
View All Crops and Sites
 
Other Names for this Chemical
About Chemical Synonyms
(US EPA PC Code ) , 080803 (US EPA PC Code Text ) , 1,3,5-Triazine-2,4-diamine, 6-chloro-N-ethyl-N'-(1-methylethyl)- , 1-Chloro-3-ethylamino-5-isopropylamino-2,4,6-triazine , 1912-24-9 (CAS number) , 1912249 , 1912249 (CAS number without hyphens) , 2-Chloro-4-(ethylamino)-6-(isopropylamino)-s-triazine , 2-Chloro-4-(propylamino)-6-ethylamino-s-triazine , 3-(N-Butyl-N-acetyl)aminopropionic acid , 305 (PDP Code) , 45 (CA DPR Chem Code) ) , 6-Chloro-N-ethyl-N'-(1-methylethyl)-1,3,5-triazine-2,4-diamine , 6-chloro-N2-ethyl-N4-isopropyl-1,3,5-triazine-2,4-diamine , A 361 , AAtram, component of (with 019101) , AAtram, component of (with 019101) , AAtrex , Aktikon , Aktikon PK , Aktinit A , Aktinit PK , Argezin , Atazinax , Atranex , Atrataf , Atratol , Atrazin , Atrazina , Atrazine , Atrazine (ANSI) , ATRAZINE (CA DPR Chem Code Text ) , ATRAZINE (PLUS RELATED ACTIVE TRIAZINES) , Atrazine plus related active triazines , Azinotox 500 , Candex , Cekuzina-T , component of Lumax herbicide , Crisazina , Cyazine , Farmco Atrazine , Fenamin , Fenatrol , G 30027 , Gesaprim , Griffex , Guardsman herbicide (080803+129051) , Hungazin , Hungazin PK , Inakor , Oleogesaprim , Primatol A , Primaze , Radazine , s-Triazine, 2-chloro-4-(ethylamino)-6-(isopropylamino)- , Shell Atrazine Herbicide , Strazine , Sutazine +, component of (with 041405) , Sutazine +, component of (with 041405) , Triazine A 1294 , Vectal SC , Weedex , Weedex A , Wonuk , Zeazin , Zeazine
 
Products Containing This Chemical
Current and historic U.S. registered products
View U.S. Products All Products Currently Registered Products
 

Signs and Symptoms of Atrazine 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.

Atrazine is a Triazine compound.

Report a Poisoning

Symptoms of Poisoning with Triazine Compounds
Find Products Containing this Chemical

Acute systemic toxicity is unlikely unless large amounts have been ingested.
- Irritation of eyes, skin and respiratory tract.

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

Treatment for Triazine Poisoning

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

 
Symptoms of Atrazine 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 ALL CONTACT! AVOID EXPOSURE OF ADOLESCENTS AND CHILDREN!
General First Aid: IN ALL CASES CONSULT A DOCTOR!

Route of Exposure

Symptoms

First Aid

Inhalation Refer for medical attention.
Skin Rinse and then wash skin with water and soap.
Eyes Redness. First rinse with plenty of water for several minutes (remove contact lenses if easily possible) then take to a doctor.
Ingestion Rinse mouth. Refer for medical attention.
Notes for ICSC Information
Temperature of decomposition unknown in literature. Carrier solvents used in commercial formulations may change physical and toxicological properties. Aatrex Actinite Aktikon Argezin Atazinax Atrafaf Atratol Atred Candex Cekuzine-T Chromozin Crisatrina Crisazine Cyazin Fenamin Fenatrol Gesaprim Griffex Hungazin Inakor Oleogesaprim Pitezin Primatol Radazin Strazine Vectal Weedex Wonuk Zeapos and Zeazine are trade names.
 

Toxicity Information for Atrazine

  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.

Detailed Toxicity Information

Acute Toxicity 2
Atrazine
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
Not Acutely Toxic to 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
Atrazine
IARC Carcinogens
U.S. NTP Carcinogens
California Prop 65 Known Carcinogens
U.S. EPA Carcinogens
TRI Carcinogen
3, Unclassifiable
Not Listed
Not Listed
Not Likely
Yes
 
Endocrine Disruption
Atrazine
Illinois EPA list
Keith list
Colborn list
Benbrook list
Danish Inert list
EU list
Known
Yes
Yes
Yes
Not listed
Yes
 
Reproductive and Developmental Toxicity
Atrazine
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
Atrazine
PAN Bad Actors
PAN Dirty Dozen list
Yes
Not Listed
 

Water Pollution Potential and Criteria for Atrazine

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)
33.0
93.0
30.0
146.0
159.0
 
 

Water Standards and Criteria

U.S. National Drinking Water Standards and Health Criteria
g/L unless noted  
Maximum Contaminant Level (MCL) 3.00  
Maximum Contaminant Level Goal (MCLG) 3.00  
One Day Exposure Health Advisory Level  
Ten Day Exposure Health Advisory Level  
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) 5.00
Interim Maximum Acceptable Concentration (IMAC)
Aesthetic Objectives
WHO Water Quality Criteria
Concentration (μg/l unless otherwise noted) 2.0
Canadian Water Quality Guidelines for the Protection of Aquatic Life
g/L unless noted  
Fresh Water Guidelines 1.8 Notes: i
Salt Water Guidelines
Canadian Water Quality Guidelines for the Protection of Agricultural Water Uses
g/L unless noted  
Irrigation Water Guidelines 10 (interim)
Livestock Water Guidelines 5 (interim)
 

Regulatory Information for Atrazine

International Regulatory Status

 
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
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 Atrazine

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, Biochemistry, Cell(s), Development, Enzyme(s), Feeding Behavior, Genetics, Growth, Histology, Hormone(s), Immunological, Morphology, Mortality, No Effect Coded, Physiology, Population, Reproduction
Annelida Accumulation, Enzyme(s), Mortality, Population
AquaticPlants Accumulation, Biochemistry, Cell(s), Development, Ecosystem Process, Enzyme(s), Genetics, Growth, Histology, Morphology, Mortality, Physiology, Population, Reproduction
Cnidaria Growth, Physiology, Population, Reproduction
Crustaceans Accumulation, Behavior, Biochemistry, Enzyme(s), Growth, Mortality, Physiology, Population
Fish Accumulation, Avoidance, Behavior, Biochemistry, Cell(s), Development, Enzyme(s), Feeding Behavior, Genetics, Growth, Histology, Hormone(s), Intoxication, Morphology, Mortality, Physiology, Population, Reproduction
Insects Accumulation, Behavior, Biochemistry, Development, Enzyme(s), Feeding Behavior, Genetics, Growth, Intoxication, Morphology, Mortality, Physiology, Population
MarineBenthicCommunity Population
Molluscs Accumulation, Avoidance, Behavior, Biochemistry, Cell(s), Development, Enzyme(s), Genetics, Growth, Immunological, Intoxication, Morphology, Mortality, Population, Reproduction
NematodesandFlatworms Population
Phytoplankton Accumulation, Behavior, Biochemistry, Cell(s), Ecosystem Process, Enzyme(s), Genetics, Growth, Histology, Intoxication, Mortality, No Effect Coded, Physiology, Population, Reproduction
TerrestrialPlants Accumulation, Population
Zooplankton Accumulation, Behavior, Biochemistry, Development, Enzyme(s), Feeding Behavior, Genetics, Growth, Intoxication, Mortality, Physiology, Population, Reproduction
~ Un-Assigned Accumulation, Behavior, Biochemistry, Cell(s), Development, Ecosystem Process, Growth, Morphology, Mortality, Physiology, Population, Reproduction
~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
Amphibians Slightly Toxic Not Acutely Toxic to Slightly Toxic
Annelida Slightly Toxic Slight to Moderate Toxicity
AquaticPlants Highly Toxic Highly Toxic
Crustaceans Slightly Toxic Not Acutely Toxic to Very High Toxicity
Fish Slightly Toxic Slight to High Toxicity
Insects Slightly Toxic Slight to High Toxicity
Molluscs Slightly Toxic Not Acutely Toxic to Moderate Toxicity
Phytoplankton Highly Toxic Highly Toxic
Zooplankton Slightly Toxic Slight to High Toxicity
~ Un-Assigned 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
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 Atrazine

CAS Number Relation Reason Chemical Name Chem Detail Symptoms California Use Chem Use Type U.S. EPA Reg PAN Bad Actor
1912-24-9 Parent P Atrazine View View View Herbicide Yes Yes
3397-62-4 Related 5a 4,6-Bis(amino)-2-chloro-s-triazine View View View Breakdown product No Not Listed
1007-28-9 Related 5a 4-Amino-2-chloro-6-ethylamino-s-triazine View View View Breakdown product No Not Listed
Related 5a Atrazine dealkylated View View View Breakdown product No Yes
Related 5a Atrazine mercapturate View View View Breakdown product No Not Listed
Related 8 Atrazine, other related View View View Herbicide No Not Listed
Related 5a Deethyl hydroxyatrazine View View View Breakdown product No Not Listed
6190-65-4 Related 5a Deethyl-atrazine View View View Breakdown product No Not Listed
Related 5a Deisopropyl atrazine View View View Breakdown product No Not Listed
Related 5a Deisopropyl hydroxyatrazine View View View Breakdown product No Not Listed
Related 5a Desethyl-desisopropyl atrazine View View View Breakdown product No Not Listed
Related 5a Diaminochlorotriazine View View View Breakdown product No Not Listed
Related 5a Didealkyl atrazine View View View Breakdown product No Not Listed
Related 5a Didealkyl hydroxyatrazine View View View Breakdown product No Not Listed
2163-68-0 Related 5a Hydroxyatrazine View View View Breakdown product No Not Listed
 
Working with the Information on this Page

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