Ecological Assessment of Storm Impacts

Data Collection

Spinosad #1

Basic Information

Synonym(s): Factor A; Lepicidin A; Spinosyn A
Formula: C₄₁H₆₅NO₁₀
Contaminant Type: Spinosad #1 is an insecticide.

Solubility (in water)

• Solubility: 89.4 mg/l ^g
  

• Solubility: 290 mg/l ^r
  pH Value: 5
  

• Solubility: 235 mg/l ^r
  pH Value: 7
  

• Solubility: 16 mg/l ^r
  pH Value: 9
  

Half-Life (in soil unless otherwise noted)

• t1/2: 82 days ^s
  Environment: On Commerce silt loam soil exposed to sunlight for up to 30 days
  

• t1/2: 9.4-17.3 days ^s
  Environment: Aerobic soil
  

Toxicity Effects

• Organism Type: Algae ^s
  Common Name: Blue-green algae
  Scientific Name: Anabaena flos-aquae
  Toxicity: 8.9 mg/l
  Test: EC50
  

• Organism Type: Algae ^s
  Common Name: Green algae
  Scientific Name: Selenastrum capricornutum
  Toxicity: >105.5 mg/l
  Test: EC50
  

• Organism Type: Birds ^s
  Common Name: Mallard
  Scientific Name: Anas platyrhynchos
  Toxicity: >1333 mg/kg
  Test: LD50
  

• Organism Type: Birds ^s
  Common Name: bobwhite quail
  Scientific Name: Colinus virginianus
  Toxicity: >1333 mg/kg
  Test: LD50
  

• Organism Type: Crustaceans ^s
  Common Name: Daphnia
  Scientific Name: Daphnia magna
  Toxicity: 14 mg/l
  Test: 48h EC50
  

• Organism Type: Crustaceans ^s
  Common Name: Common grass shrimp
  Scientific Name: Palaemonetes vulgaris
  Toxicity: >9.76 mg/l
  Test: 96h LC50
  

• Organism Type: Fish ^s
  Common Name: Sheepshead minnow
  Scientific Name: Cyprinodon variegatus
  Toxicity: 7.9 mg/l
  Test: 96h LC50
  

• Organism Type: Fish ^s
  Common Name: Bluegill
  Scientific Name: Lepomis macrochirus
  Toxicity: 5.94 mg/l
  Test: 96h LC50
  

• Organism Type: Fish ^s
  Common Name: Rainbow trout
  Scientific Name: Oncorhynchus mykiss
  Toxicity: 30 mg/l
  Test: 96h LC50
  

• Organism Type: Mammals ^s
  Common Name: Rat
  Scientific Name: Muridae (Family)
  Gender: Male
  Toxicity: 3738 mg/kg
  Test: LD50
  Formulation: 90.4% tech
  

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

• Organism Type: Mammals ^s
  Common Name: Rat
  Scientific Name: Muridae (Family)
  Gender: Female
  Toxicity: >5000 mg/kg
  Test: LD50
  Formulation: 90.4% tech
  

• Organism Type: Molluscs ^s
  Common Name: Eastern oyster
  Scientific Name: Crassostrea virginica
  Toxicity: 0.3 mg/l
  Test: 96h EC50
  

Octanol-Water Partition Coefficients

• Log Kow: 2.8 ^s
  Formulation: pH 5 buffer
  

• Log Kow: 5.2 ^s
  Formulation: pH 9 buffer
  

Work Cited