Ecological Assessment of Storm Impacts

Data Collection

Propoxur

Basic Information

Synonym(s): 2-(1-methylethoxy)phenol methylcarbamate; 2-(1-methylethoxy)phenyl methylcarbamate; o-Isopropoxyphenyl Methylcarbamate; o-isopropoxyphenyl N-methylcarbamate; aprocarb; BAY 39007; BAY 9010; Baygon; Baygon
Formula: C₁₁H₁₅NO₃
Molecular Weight: 209.27
Melting Point (°C): 91
Contaminant Type: Propoxur is an insecticide.
Notes: Solid

Solubility (in water)

• Solubility: 1800 mg/l ^ak
  

• Solubility: 1.74 g/l ^k
  Temperature (°C): 10
  

• Solubility: 1.93 g/l ^k
  Temperature (°C): 20
  

• Solubility: 2.44 g/l ^k
  Temperature (°C): 30
  

Half-Life (in soil unless otherwise noted)

• t1/2: 11 days ^ak
  Temperature (°C): 23-26
  Environment: "In a greenhouse at constant light and initial conc. of 5-10 mg/kg soil, experiment time 50 days - in sandy soil"
  

• t1/2: 4 days ^ak
  Temperature (°C): 23-26
  Environment: "In a greenhouse at constant light and initial conc. of 5-10 mg/kg soil, experiment time 50 days - in organic-rich orchard soil"
  

• t1/2: 5 days ^ak
  Temperature (°C): 23-26
  Environment: "In a greenhouse at constant light and initial conc. of 5-10 mg/kg soil, experiment time 50 days - in agricultural soil"
  

• t1/2: 27 days ^ak
  Temperature (°C): 23-26
  Environment: "In a greenhouse at constant light and initial conc. of 5-10 mg/kg soil, experiment time 50 days - in soil from volcanic area"
  

• t1/2: 30 days ^ak
  Temperature (°C): 23-26
  Environment: "In a greenhouse at constant light and initial conc. of 5-10 mg/kg soil, experiment time 50 days - in field experiments (dissipation t1/2)"
  

• t1/2: 0.6 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: 14-50 days ^h
  

• t1/2: 1.6-28 days ^f
  Environment: Scientific judgement based upon estimated hydrolysis t1/2 at pH 9.0 (low t1/2) and estimated unacclimated aqueous aerobic biodegradation half-life (high t1/2)
  

Toxicity Effects

• Organism Type: Birds ^h
  Common Name: Mallard
  Scientific Name: Anas platyrhynchos
  Toxicity: 10.5 mg/kg
  Test: LD50
  

• Organism Type: Birds ^h
  Common Name: Canada Goose
  Scientific Name: Branta canadensis
  Toxicity: 6 mg/kg
  Test: LD50
  

• Organism Type: Birds ^h
  Common Name: California quail
  Scientific Name: Callipepla californica
  Toxicity: 26 mg/kg
  Test: LD50
  

• Organism Type: Birds ^h
  Common Name: House finches
  Scientific Name: Carpodacus mexicanus
  Toxicity: 4 mg/kg
  Test: LD50
  

• Organism Type: Birds ^h
  Common Name: bobwhite quail
  Scientific Name: Colinus virginianus
  Toxicity: 25.9 mg/kg
  Test: LD50
  

• Organism Type: Birds ^h
  Common Name: Japanese quail
  Scientific Name: Coturnix japonica
  Toxicity: 28 mg/kg
  Test: LD50
  

• Organism Type: Birds ^h
  Common Name: Grouse
  Scientific Name: Phasianidae (Family)
  Toxicity: 120 mg/kg
  Test: LD50
  

• Organism Type: Birds ^h
  Common Name: pheasant
  Scientific Name: Phasianidae (Family)
  Toxicity: 20 mg/kg
  Test: LD50
  

• Organism Type: Birds ^h
  Common Name: Mourning doves
  Scientific Name: Zenaida macroura
  Toxicity: 4 mg/kg
  Test: LD50
  

• Organism Type: Crustaceans ^ak
  Scientific Name: Gammarus fasciatus
  Toxicity: 50 µg/l
  Test: 96h LC50
  

• Organism Type: Crustaceans ^ak
  Scientific Name: Gammarus lacustris
  Toxicity: 34 µg/l
  Test: 96h LC50
  

• Organism Type: Crustaceans ^ak
  Common Name: Red-swamp crayfish
  Scientific Name: Procambarus clarkii
  Toxicity: 1.4 mg/l
  Test: 4d LC50
  

• Organism Type: Fish ^h
  Common Name: Bluegill
  Scientific Name: Lepomis macrochirus
  Toxicity: 6.6 mg/l
  Test: 96h LC50
  

• Organism Type: Fish ^h
  Common Name: Rainbow trout
  Scientific Name: Oncorhynchus mykiss
  Toxicity: 3.7 mg/l
  Test: 96h LC50
  

• Organism Type: Fish ^ak
  Common Name: Fathead minnow
  Scientific Name: Pimephales promelas
  Toxicity: 8.8 mg/l
  Test: 4d LC50
  

• Organism Type: Mammals ^k
  Common Name: Rat
  Scientific Name: Muridae (Family)
  Gender: Male
  Toxicity: 95 mg/kg
  Test: LD50
  

• Organism Type: Mammals ^k
  Common Name: Rat
  Scientific Name: Muridae (Family)
  Gender: Female
  Toxicity: 104 mg/kg
  Test: LD50
  

• Organism Type: Mammals ^h
  Common Name: Rat
  Scientific Name: Muridae (Family)
  Toxicity: 100 mg/kg
  Test: LD50
  

• Organism Type: Mammals ^h
  Common Name: Mouse
  Scientific Name: Muridae (Family)
  Toxicity: 100 mg/kg
  Test: LD50
  

• Organism Type: Mammals ^h
  Common Name: mule deer
  Scientific Name: Odocoileus hemionus
  Toxicity: 100-350 mg/kg
  Test: LD50
  

Soil Organic Carbon/Water Partition Coefficients

• Koc: 1.5 ^ak
  Formulation: log
  

• Koc: 93 ml/g ^k
  Formulation: Clayey loam
  pH Value: 6
  

• Koc: 53 ml/g ^k
  Formulation: Kanuma high clay
  pH Value: 5.7
  

• Koc: 3 ml/g ^k
  Formulation: Loamy sand
  pH Value: 6.6
  

• Koc: 76 ml/g ^k
  Formulation: Sandy loam
  pH Value: 7.7
  

• Koc: 42 ml/g ^k
  Formulation: Silty loam
  pH Value: 6.3
  

• Koc: 44 ml/g ^k
  Formulation: Silty loam
  pH Value: 6.1
  

• Koc: 10 ml/g ^k
  Formulation: Silty loam
  pH Value: 5.1
  

• Koc: 41 ml/g ^k
  Formulation: Tsukuba clay loam
  pH Value: 6.5
  

• Koc: 0.48-1.97 ^k
  Formulation: log
  

Octanol-Water Partition Coefficients

• Log Kow: 1.5; 1.52 ^ak
  

• Log Kow: 0.14 ^h
  Notes: Source did not specify type of partition coeffecient or if value was the log

• Log Kow: 1.45-1.56 ^k
  

Work Cited