Ecological Assessment of Storm Impacts

Data Collection

Oxadiazon

Basic Information

Synonym(s): Oxydiazon
Formula: C₁₅H₁₈Cl₂N₂O₃
Molecular Weight: 345.225
Melting Point (°C): 88 - 90
Contaminant Type: Oxadiazon is an herbicide.

Solubility (in water)

• Solubility: .7 mg/l ^e
  Temperature (°C): 20
  

Half-Life (in soil unless otherwise noted)

• t1/2: 2.5 days ^e
  Temperature (°C): 18-22
  Notes: Aerobic biodegration half-life at an initial concentration of 0.2 ppm, using a mixture of nonacclimated sludge, field soil, and river sediment as inoculum, in a stirred flask, the major bacterial types in the activated sludge have been characterized as follows: Flavobacterium 35%; Alcaligenes 30%; Corynebacterium 20%; Pseudomonas 15%

• t1/2: 1-2 months ^e
  Environment: With rice, varies according to crop and climate
  

• t1/2: 3-6 months ^e
  Environment: With fruit orchards, varies according to crop and climate
  

Toxicity Effects

• Organism Type: Fish ^e
  Common Name: Carp
  Scientific Name: Cyprinus carpio
  Toxicity: 3.2 mg/l
  Test: 48h LC50
  

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

Octanol-Water Partition Coefficients

• Log Kow: 4.8 ^e
  

Work Cited