Ecological Assessment of Storm Impacts

Data Collection

Sulfometuron-Methyl

Basic Information

Synonym(s): Benzoic acid 2-[[[[(4,6-dimethyl-2-pyrimidinyl)amino]carbonyl]amino]sulfonyl]-, methyl ester; DPX-T5648; methyl 2-[[[[(4,6-dimethyl-2-pyrimidinyl)amino]carbonyl]amino]sulfonyl]benzoate; Oust; Oust 75DF; Oust weed killer; sulfometuron; Sulfometuron-Me; Sul
Formula: C₁₅H₁₆N₄O₅S
Molecular Weight: 364.4
Melting Point (°C): 203 - 205
Contaminant Type: Sulfometuron-Methyl is an herbicide.

Solubility (in water)

• Solubility: ~10 ppm ^g
  pH Value: 5.5
  

• Solubility: 300 ppm ^g
  Temperature (°C): 25
  pH Value: 7
  

• Solubility: 8-10 mg/l ^k
  Temperature (°C): 25
  pH Value: 5
  

• Solubility: 70-300 mg/l ^k
  Temperature (°C): 25
  pH Value: 7
  

Half-Life (in soil unless otherwise noted)

• t1/2: ~4 weeks ^k
  

Toxicity Effects

• Organism Type: Fish ^k
  Common Name: Bluegill
  Scientific Name: Lepomis macrochirus
  Toxicity: >12.5 mg/l
  Test: 96h LC50
  

• Organism Type: Fish ^k
  Common Name: Rainbow trout
  Scientific Name: Oncorhynchus mykiss
  Toxicity: >12.5 mg/l
  Test: 96h LC50
  

• Organism Type: Mammals ^g
  Common Name: Rat
  Scientific Name: Muridae (Family)
  Toxicity: >5000 mg/kg
  Test: LD50
  

Soil Organic Carbon/Water Partition Coefficients

• Koc: 120 ml/g ^k
  Formulation: Fallsington sandy loam
  pH Value: 5.6
  

• Koc: 122 ml/g ^k
  Formulation: Flanagan silt loam
  pH Value: 6.5
  

• Koc: 71 ml/g ^k
  Formulation: Myakka sand
  pH Value: 6.3
  

• Koc: 1.85-2.09 ^k
  Formulation: log
  

Work Cited