PAN Pesticides Database - Chemicals

Simazine - 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 Simazine

Basic Identification Information About This Chemical
Chemical Name: Simazine
CAS Number: 122-34-9
U.S. EPA PC Code: 080807
CA DPR Chem Code: 531
Molecular Weight: 201.66
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
Oranges   Wine Grapes   Table and Raisin Grapes   Almonds   Walnuts  
View All Crops and Sites
 
Other Names for this Chemical
About Chemical Synonyms
(US EPA PC Code ) , 080807 (US EPA PC Code Text ) , 1,3,5-Triazine-2,4-diamine, 6-chloro-N,N'-diethyl- , 122-34-9 (CAS number) , 122349 , 122349 (CAS number without hyphens) , 149 (PDP Code) , 2-Chloro-4,6-bis(ethylamino)-s-triazine , 531 (CA DPR Chem Code) ) , 6-Chloro-N,N'-diethyl-1,3,5-triazine-2,4-diamine , 6-chloro-N2,N4-diethyl-1,3,5-triazine-2,4-diamine , Amizine , Chlorobis ethyl amino triaznine , G 27692 , Gesapun , Primatol S , Princep , s-Triazine, 2-chloro-4,6-bis(ethylamino)- , Simazin , Simazina , Simazine , Simazine (ANSI) , SIMAZINE (CA DPR Chem Code Text ) , Simazine plus related active triazines , Terraklene, component of (with 061601) , Terraklene, component of (with 061601)
 
Products Containing This Chemical
Current and historic U.S. registered products
View U.S. Products All Products Currently Registered Products
 

Signs and Symptoms of Simazine 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.

Simazine 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 Simazine 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 Fresh air rest.
Skin Remove contaminated clothes. Rinse and then wash skin with water and soap.
Eyes First rinse with plenty of water for several minutes (remove contact lenses if easily possible) then take to a doctor.
Ingestion Rinse mouth. Give plenty of water to drink. Rest. Refer for medical attention.
Notes for ICSC Information
The substance is combustible but no flash point is available in literature. 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.
 

Toxicity Information for Simazine

  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.

Detailed Toxicity Information

Acute Toxicity 2
Simazine
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
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
Simazine
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
Not Listed
 
Endocrine Disruption
Simazine
Illinois EPA list
Keith list
Colborn list
Benbrook list
Danish Inert list
EU list
Not Listed
Yes
Not Listed
Not Listed
Not Listed
Yes
 
Reproductive and Developmental Toxicity
Simazine
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
Yes
 
Chemicals of Special Concern
Simazine
PAN Bad Actors
PAN Dirty Dozen list
Yes
Not Listed
 

Water Pollution Potential and Criteria for Simazine

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)
6.00
340.0
28.0
110.0
71.0
 
 

Water Standards and Criteria

U.S. National Drinking Water Standards and Health Criteria
g/L unless noted  
Maximum Contaminant Level (MCL) 4.00  
Maximum Contaminant Level Goal (MCLG) 4.00  
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) 10.0
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 10
Salt Water Guidelines
Canadian Water Quality Guidelines for the Protection of Agricultural Water Uses
g/L unless noted  
Irrigation Water Guidelines 0.5 (interim
Livestock Water Guidelines 10 (interim)
 

Regulatory Information for Simazine

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 Simazine

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 Biochemistry, Hormone(s), Mortality, Reproduction
Annelida Mortality, Population
AquaticPlants Accumulation, Biochemistry, Cell(s), Ecosystem Process, Growth, Histology, Injury, Mortality, Physiology, Population
Crustaceans Intoxication, Mortality, Population
Fish Accumulation, Behavior, Biochemistry, Development, Feeding Behavior, Growth, Histology, Hormone(s), Intoxication, Morphology, Mortality, Physiology, Population, Reproduction
Insects Behavior, Mortality, Population
Molluscs Growth, Intoxication, Mortality, Population
Phytoplankton Accumulation, Biochemistry, Cell(s), Ecosystem Process, Enzyme(s), Physiology, Population
TerrestrialPlants Ecosystem Process
Zooplankton Accumulation, Growth, Intoxication, Mortality, Physiology, Population, Reproduction
~ Un-Assigned Biochemistry, Intoxication, Mortality, Physiology, Population
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
Annelida Not Acutely Toxic Not Acutely Toxic
Crustaceans Slightly Toxic Not Acutely Toxic to Moderate Toxicity
Fish Slightly Toxic Not Acutely Toxic to Moderate Toxicity
Insects Slightly Toxic Slight Toxicity
Molluscs Not Acutely Toxic Not Acutely Toxic
Phytoplankton Highly Toxic Moderate to High Toxicity
Zooplankton Slightly Toxic Not Acutely Toxic to Slightly Toxic
~ Un-Assigned Moderately Toxic 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 Simazine

CAS Number Relation Reason Chemical Name Chem Detail Symptoms California Use Chem Use Type U.S. EPA Reg PAN Bad Actor
122-34-9 Parent P Simazine View View View Herbicide Yes Yes
Related 5a Deethyl-simazine View View View Breakdown product No Not Listed
Related 5a Deethylhydroxysimazine View View View Breakdown product No Not Listed
Related 5a Hydroxysimazine View View View Breakdown product No Not Listed
673-04-1 Related 2 Simetone 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.

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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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