Ecological Assessment of Storm Impacts

Data Collection

Thiobencarb

Basic Information

Synonym(s): 4-Chlorobenzyl diethylthiolcarbamate; 4-Chlorobenzyl N,N-diethylthiocarbamate; Bencarb; benthiocarb; diethylcarbamothioic acid S-[(4-chlorophenyl)methyl] ester; Bolero; Bolero 8E; Carbamic acid, diethylthio-, S-(p-chlorobenzyl)ester; IMC 3950; S-((4-chlor
Formula: C₁₂H₁₆ClNOS
Molecular Weight: 257.8
Boiling Point (°C): 126 - 129
Contaminant Type: Thiobencarb is an herbicide.

Solubility (in water)

• Solubility: 30 mg/l ^ak
  Temperature (°C): 20
  

Half-Life (in soil unless otherwise noted)

• t1/2: 2 days ^ak
  Temperature (°C): 18-22
  Environment: "Aerobic biodegration half-life at an initial concentration of 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 foll"
  

• t1/2: 0.71 days ^ak
  Temperature (°C): 40
  pH Value: 9
  Environment: "alkaline hydrolysis, in the dark"
  

• t1/2: 6-8 months ^ak
  Environment: anaerobic soil
  

• t1/2: 2-3 weeks ^ak
  Environment: aerobic soil
  

Toxicity Effects

• Organism Type: Crustaceans ^ak
  Common Name: Red-swamp crayfish
  Scientific Name: Procambarus clarkii
  Toxicity: 9.2 mg/l
  Test: 4d LC50
  

• Organism Type: Fish ^ak
  Common Name: Channel catfish
  Scientific Name: Ictalurus punctatus
  Toxicity: 2.3 - 6.1 mg/l
  Test: 96h LC50
  

• Organism Type: Fish ^ak
  Common Name: Bluegill
  Scientific Name: Lepomis macrochirus
  Toxicity: 1.6 - 3.4 mg/l
  Test: 96h LC50
  

• Organism Type: Fish ^ak
  Common Name: Inland silverside, tidewater silverside
  Scientific Name: Menidia beryllina
  Toxicity: 330 µg/l
  Test: 96h LC50
  

• Organism Type: Fish ^ak
  Common Name: Inland silverside, tidewater silverside
  Scientific Name: Menidia beryllina
  Toxicity: 28 µg/l
  Test: MATC Life Cycle
  

• Organism Type: Fish ^ak
  Common Name: Rainbow trout
  Scientific Name: Oncorhynchus mykiss
  Toxicity: 1.1 mg/l
  Test: 96h LC50
  

• Organism Type: Mammals ^g
  Common Name: Rat
  Scientific Name: Muridae (Family)
  Toxicity: 1130 mg/kg
  Test: LD50
  

• Organism Type: Molluscs ^ak
  Scientific Name: Melanopsis dufouri
  Toxicity: 52 - 83 mg/l
  Test: 4d LC50
  

Octanol-Water Partition Coefficients

• Log Kow: 3.42 ^ak
  

Work Cited