Ecological Assessment of Storm Impacts

Data Collection

Clomazone

Basic Information

Synonym(s): 2-((2-chlorophenyl)methyl)-4,4-dimethyl-3-isoxazolidinone; Dimethazone; Dimethazone; Command; Command 4E; fenoxan; FMC 57020; Gamit
Formula: C₁₂H₁₄ClNO₂
Molecular Weight: 239.701
Boiling Point (°C): 275.4
Melting Point (°C): 25
Contaminant Type: Clomazone is an herbicide.

Solubility (in water)

• Solubility: 1100 mg/l ^h
  

Half-Life (in soil unless otherwise noted)

• t1/2: 28-84 days ^h
  Environment: Depends on soil type and the organic matter content.
  

Toxicity Effects

• Organism Type: Birds ^h
  Common Name: Mallard
  Scientific Name: Anas platyrhynchos
  Toxicity: >2510 mg/kg
  Test: LD50
  

• Organism Type: Birds ^h
  Common Name: bobwhite quail
  Scientific Name: Colinus virginianus
  Toxicity: >2510 mg/kg
  Test: LD50
  

• Organism Type: Crustaceans ^h
  Common Name: Daphnia
  Scientific Name: Daphnia magna
  Toxicity: 5.2 mg/l
  Test: 96h LC50
  

• Organism Type: Crustaceans ^h
  Common Name: Mysid shrimp
  Scientific Name: Mysidopsis bahia
  Toxicity: 0.566 mg/l
  Test: 96h LC50
  

• Organism Type: Fish ^h
  Common Name: Sheepshead minnow
  Scientific Name: Cyprinodon variegatus
  Toxicity: 40.6 mg/l
  Test: 96h LC50
  

• Organism Type: Fish ^h
  Common Name: Bluegill
  Scientific Name: Lepomis macrochirus
  Toxicity: 34 mg/l
  Test: 96h LC50
  

• Organism Type: Fish ^h
  Common Name: Atlantic silverside
  Scientific Name: Menidia menidia
  Toxicity: 6.26 mg/l
  Test: 96h LC50
  

• Organism Type: Fish ^h
  Common Name: Rainbow trout
  Scientific Name: Oncorhynchus mykiss
  Toxicity: 19 mg/l
  Test: 96h LC50
  

• Organism Type: Mammals ^h
  Common Name: Rat
  Scientific Name: Muridae (Family)
  Gender: Male
  Toxicity: 2077 mg/kg
  Test: LD50
  

• Organism Type: Mammals ^h
  Common Name: Rat
  Scientific Name: Muridae (Family)
  Gender: Male
  Toxicity: 2343 mg/kg
  Test: LD50
  Formulation: Command 4EC
  

• Organism Type: Mammals ^h
  Common Name: Rat
  Scientific Name: Muridae (Family)
  Gender: Female
  Toxicity: 1369 mg/kg
  Test: LD50
  

• Organism Type: Mammals ^h
  Common Name: Rat
  Scientific Name: Muridae (Family)
  Gender: Female
  Toxicity: 1406 mg/kg
  Test: LD50
  Formulation: Command 4EC
  

• Organism Type: Molluscs ^h
  Common Name: Eastern oyster
  Scientific Name: Crassostrea virginica
  Toxicity: 5.3 mg/l
  Test: 96h LC50
  

Work Cited