Ecological Assessment of Storm Impacts

Data Collection

3-Amino-1,2,4-Triazole

Basic Information

Synonym(s): Amino-s-triazole; Weedazole; weedazol super; weedazol t; Vorox; ramizol; 3,A-T; azaplant; weedar ads; weedazin; weedoclor; aminotriazol-spritzpulver; azaplant kombi; campaprim a 1544; elmasil; herbidal total; kleer-lot; orga-414; radoxone tl
Formula: C₂H₄N₄
Molecular Weight: 84.08
Boiling Point (°C): 200
Melting Point (°C): 159
Contaminant Type: 3-Amino-1,2,4-Triazole is an herbicide.
Notes: White crystals; bitter taste

Solubility (in water)

• Solubility: 280000 mg/l ^e
  Temperature (°C): 25
  

• Solubility: 280000 mg/l ^h
  Temperature (°C): 23
  

Half-Life (in soil unless otherwise noted)

• t1/2: 14 days ^h
  

• t1/2: 1-6 months ^f
  Environment: scientific judgement based upon estimated aqueous aerobic biodegradation half-life
  

Toxicity Effects

• Organism Type: Birds ^h
  Common Name: Mallard
  Scientific Name: Anas platyrhynchos
  Toxicity: 2000 mg/kg
  Test: LD50
  

• Organism Type: Crustaceans ^e
  Scientific Name: Acanthocyclops vernalis nauplii
  Toxicity: 22 mg/l
  Test: 96h EC50
  

• Organism Type: Crustaceans ^e
  Scientific Name: Caecidotea brevicauda
  Toxicity: 100 mg/l
  Test: 48h NOEC
  

• Organism Type: Crustaceans ^e
  Scientific Name: Cypridopsis vidua
  Toxicity: 32 mg/l
  Test: 48h LC50
  

• Organism Type: Crustaceans ^e
  Common Name: Daphnia
  Scientific Name: Daphnia magna
  Toxicity: 30 mg/l
  Test: 48h LC50
  

• Organism Type: Crustaceans ^e
  Scientific Name: Gammarus fasciatus
  Toxicity: 100 mg/l
  Test: 48h NOEC
  

• Organism Type: Crustaceans ^e
  Scientific Name: Gammarus fasciatus
  Toxicity: >10 mg/l
  Test: 96h EC50
  

• Organism Type: Crustaceans ^e
  Scientific Name: Orconectes nais
  Toxicity: 100 mg/l
  Test: 48h NOEC
  

• Organism Type: Crustaceans ^e
  Common Name: Mississippi grass shrimp
  Scientific Name: Palaemonetes kadiakensis
  Toxicity: 100 mg/l
  Test: 48h NOEC
  

• Organism Type: Fish ^e
  Common Name: Carp
  Scientific Name: Cyprinus carpio
  Toxicity: >1000 mg/l
  Test: 48h LC0
  

• Organism Type: Fish ^e
  Common Name: Green sunfish
  Scientific Name: Lepomis cyanellus
  Life Stage: Egg
  Toxicity: 50 mg/l
  Test: 72h EC0
  Notes: Fertilized eggs

• Organism Type: Fish ^e
  Common Name: Bluegill
  Scientific Name: Lepomis macrochirus
  Life Stage: Fry
  Toxicity: 25 mg/l
  Test: 12d LC0
  

• Organism Type: Fish ^e
  Common Name: Bluegill
  Scientific Name: Lepomis macrochirus
  Toxicity: 100 mg/l
  Test: 48h LC50
  

• Organism Type: Fish ^e
  Common Name: Bluegill
  Scientific Name: Lepomis macrochirus
  Toxicity: 10000 mg/l
  Test: 48h LC50
  

• Organism Type: Fish ^e
  Common Name: Bluegill
  Scientific Name: Lepomis macrochirus
  Toxicity: >100 mg/l
  Test: 48h NOEC
  

• Organism Type: Fish ^e
  Common Name: Coho salmon or silver salmon
  Scientific Name: Oncorhynchus kisutch
  Toxicity: 325 mg/l
  Test: 48h LC50
  

• Organism Type: Fish ^e
  Common Name: Chinook salmon or king salmon
  Scientific Name: Oncorhynchus tshawytscha
  Toxicity: 185 mg/l
  Test: 24h LC50
  

• Organism Type: Fish ^e
  Common Name: Chinook salmon or king salmon
  Scientific Name: Oncorhynchus tshawytscha
  Life Stage: Fingerlings
  Toxicity: 155 mg/l
  Test: 48h LC50
  

• Organism Type: Fish ^e
  Common Name: Guppy
  Scientific Name: Poecilia reticulata
  Toxicity: 14300 mg/l
  Test: 27h LC50
  

• Organism Type: Fish ^e
  Common Name: Guppy
  Scientific Name: Poecilia reticulata
  Toxicity: 600 mg/l
  Test: 48h LC0
  

• Organism Type: Fish ^e
  Common Name: Guppy
  Scientific Name: Poecilia reticulata
  Toxicity: 1500 mg/l
  Test: 48h LC100
  

• Organism Type: Fish ^e
  Common Name: Guppy
  Scientific Name: Poecilia reticulata
  Toxicity: 12500 mg/l
  Test: 96h LC50
  

• Organism Type: Fish ^e
  Scientific Name: Salmo iridens
  Toxicity: 400 mg/l
  Test: 24h LC0
  

• Organism Type: Fish ^e
  Scientific Name: Salmo iridens
  Toxicity: 1000 mg/l
  Test: 24h LC100
  

• Organism Type: Mammals ^h
  Common Name: Rat
  Scientific Name: Muridae (Family)
  Toxicity: 24600 mg/kg
  Test: LD50
  

• Organism Type: Mammals ^h
  Common Name: Mouse
  Scientific Name: Muridae (Family)
  Toxicity: 15000 mg/kg
  Test: LD50
  

• Organism Type: Mammals ^k
  Common Name: Rat
  Scientific Name: Muridae (Family)
  Toxicity: 1100-2500 mg/kg
  Test: LD50
  

• Organism Type: Molluscs ^e
  Common Name: Eastern oyster
  Scientific Name: Crassostrea virginica
  Life Stage: Larval
  Toxicity: 255 mg/l
  Test: 12d EC50
  Notes: 2-day larvae

• Organism Type: Molluscs ^e
  Common Name: Eastern oyster
  Scientific Name: Crassostrea virginica
  Life Stage: 2-cell
  Toxicity: 734 mg/l
  Test: 48h EC50
  

Soil Organic Carbon/Water Partition Coefficients

• Koc: 147 ml/g ^k
  Formulation: in sand
  pH Value: 5.6
  

• Koc: 202 ml/g ^k
  Formulation: in sandy loam
  pH Value: 6.1
  

• Koc: 111 ml/g ^k
  Formulation: in silty loam
  pH Value: 6.8
  

• Koc: 54 ml/g ^k
  Formulation: in silty loam
  pH Value: 7
  

• Koc: 1.73-2.31 ^k
  Formulation: log
  

Octanol-Water Partition Coefficients

• Log Kow: -1.5 ^e
  Formulation: calculated
  

• Log Kow: -0.15 ^k
  

Work Cited