Ecological Assessment of Storm Impacts

Data Collection

Betasan

Basic Information

Synonym(s): O,O-bis(1-methylethyl) S-(2-((phenylsulfonyl)amino)ethyl) phosphorodithioate; P-4461; Bensulide; Bensumec; Benzulfide; Disan; Betamec; Betamec 4; Betasan; Betasan 12.5 G; Betasan 4E; Exporsan; Prefar; Prefar 4E; Pre-san; R-4461; SAP
Formula: C₁₄H₂₄NO₄PS₃
Molecular Weight: 397.5
Melting Point (°C): 34.4
Contaminant Type: Betasan is an herbicide.
Notes: Used to control grasses and broad-leaf weeds in lawn

Solubility (in water)

• Solubility: 25 mg/l ^e
  

• Solubility: 25 mg/l ^g
  Temperature (°C): 20
  

Half-Life (in soil unless otherwise noted)

• t1/2: 4 months ^al
  Temperature (°C): 70-80
  Environment: moist loam soil
  

• t1/2: 6 months ^al
  Temperature (°C): 70-80
  Environment: moist loamy sand soil
  

Toxicity Effects

• Organism Type: Crustaceans ^ak
  Common Name: Daphnia
  Scientific Name: Daphnia magna
  Toxicity: 0.58 mg/l
  Test: 48h LC50
  

• Organism Type: Crustaceans ^ak
  Common Name: Water shrimp
  Scientific Name: Gammarus sp.
  Toxicity: 1.4 mg/l
  Test: 96h LC50
  

• Organism Type: Fish ^ak
  Common Name: Goldfish
  Scientific Name: Carassius auratus
  Toxicity: 1 mg/l
  Test: 96h LC50
  

• Organism Type: Fish ^ak
  Common Name: Goldfish
  Scientific Name: Carassius auratus
  Toxicity: 1-2 mg/l
  Test: 96h LC50
  

• Organism Type: Fish ^ak
  Common Name: Channel catfish
  Scientific Name: Ictalurus punctatus
  Toxicity: 379 µg/l
  Test: 96h LC50,S
  

• Organism Type: Fish ^ak
  Common Name: Bluegill
  Scientific Name: Lepomis macrochirus
  Toxicity: 0.8;1.4 mg/l
  Test: 96h LC50
  

• 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: 2650 mg/kg
  Test: LD50
  Formulation: 12.5G
  

• Organism Type: Mammals ^ak
  Common Name: Rat
  Scientific Name: Muridae (Family)
  Gender: Female
  Toxicity: 270 mg/kg bw
  Test: LD50
  

• Organism Type: Mammals ^g
  Common Name: Rat
  Scientific Name: Muridae (Family)
  Toxicity: 271-1470 mg/kg
  Test: LD50
  

• Organism Type: Mammals ^ak
  Common Name: Rat
  Scientific Name: Muridae (Family)
  Gender: Male
  Toxicity: 360 mg/kg bw
  Test: LD50
  

• Organism Type: Mammals ^g
  Common Name: Rat
  Scientific Name: Muridae (Family)
  Toxicity: 826-1778 mg/kg
  Test: LD50
  Formulation: 4-E
  

• Organism Type: Mammals ^g
  Common Name: Rat
  Scientific Name: Muridae (Family)
  Toxicity: >1000 mg/kg
  Test: LD50
  Formulation: 3.6G
  

Octanol-Water Partition Coefficients

• Log Kow: 4.2 ^e
  

• Log Kow: 4.2175 ^h
  Notes: Source did not specify type of partition coeffecient or if value was the log

Work Cited