Ecological Assessment of Storm Impacts

Data Collection

Trifluralin

Basic Information

Synonym(s): Agreflan; agriflan 24; Benezeneamine, 2,6-dinitro-N,N-dipropyl-4-(trifluoromethyl)-; Crisalin; Elancolan; Elanocolan; L-36352; Lilly 36,352; N,N-di-n-propyl-2,6-dinitro-4-trifluoromethylaniline
Formula: C₁₃H₁₆F₃N₃O₄
Molecular Weight: 335.282
Boiling Point (°C): 139
Melting Point (°C): 48.5
Contaminant Type: Trifluralin is an herbicide.
Notes: Yellow crystals.

Solubility (in water)

• Solubility: <1 mg/l ^g
  Temperature (°C): 27
  

• Solubility: 4 mg/l ^e
  Temperature (°C): 27
  

Half-Life (in soil unless otherwise noted)

• t1/2: 3 weeks ^e
  Environment: In irrigated soils in Texas
  

• t1/2: 5 weeks ^e
  Environment: In irrigated soils in Tennessee
  

• t1/2: 50 days ^e
  Environment: Under greenhouse conditions in sandy loam soil
  

• t1/2: 126-190+ days ^e
  Environment: Two sandy loam soils following application in May in Novia Scotia
  

Toxicity Effects

• Organism Type: Algae ^e
  Scientific Name: Chlorococcum spp.
  Toxicity: 2.5 mg/l
  Test: 10d EC50, growth
  Formulation: Technical acid
  

• Organism Type: Algae ^e
  Scientific Name: Chlorococcum spp.
  Toxicity: 500 mg/l
  Test: 10d EC50, O2 evol
  Formulation: Technical acid
  

• Organism Type: Algae ^e
  Scientific Name: Dunaliella tertiolecta
  Toxicity: 5 mg/l
  Test: 10d EC50, growth
  Formulation: Technical acid
  

• Organism Type: Algae ^e
  Scientific Name: Dunaliella tertiolecta
  Toxicity: >500 mg/l
  Test: 10d EC50, O2 evol
  Formulation: Technical acid
  

• Organism Type: Algae ^e
  Scientific Name: Isochrysis galbana
  Toxicity: 2.5 mg/l
  Test: 10d EC50, growth
  Formulation: Technical acid
  

• Organism Type: Algae ^e
  Scientific Name: Isochrysis galbana
  Toxicity: 400 mg/l
  Test: 10d EC50, O2 evol
  Formulation: Technical acid
  

• Organism Type: Algae ^e
  Scientific Name: Phaeodactylum tricornutum
  Toxicity: 2.5 mg/l
  Test: 10d EC50, growth
  Formulation: Technical acid
  

• Organism Type: Algae ^e
  Scientific Name: Phaeodactylum tricornutum
  Toxicity: >500 mg/l
  Test: 10d EC50, O2 evol
  Formulation: Technical acid
  

• Organism Type: Crustaceans ^e
  Scientific Name: Cypridopsis vidua
  Toxicity: 250 µg/l
  Test: 48h LC50
  

• Organism Type: Crustaceans ^e
  Common Name: Daphnia
  Scientific Name: Daphnia magna
  Toxicity: 560 µg/l
  Test: 48h LC50
  

• Organism Type: Crustaceans ^e
  Common Name: Daphnia
  Scientific Name: Daphnia pulex
  Toxicity: 240 µg/l
  Test: 48h LC50
  

• Organism Type: Crustaceans ^e
  Scientific Name: Gammarus fasciatus
  Toxicity: 1000 µg/l
  Test: 96h LC50
  

• Organism Type: Crustaceans ^e
  Scientific Name: Gammarus lacustris
  Toxicity: 2200 µg/l
  Test: 96h LC50
  

• Organism Type: Crustaceans ^e
  Scientific Name: Orconectes nais
  Toxicity: 50000 µg/l
  Test: 48h LC50
  

• Organism Type: Crustaceans ^e
  Common Name: Mississippi grass shrimp
  Scientific Name: Palaemonetes kadiakensis
  Toxicity: 1200 µg/l
  Test: 48h LC50
  

• Organism Type: Crustaceans ^e
  Common Name: Red-swamp crayfish
  Scientific Name: Procambarus clarkii
  Toxicity: 13-26 mg/l
  Test: 4d LC50
  

• Organism Type: Crustaceans ^e
  Scientific Name: Simocephalus serrulatus
  Toxicity: 450 µg/l
  Test: 48h LC50
  

• Organism Type: Fish ^e
  Common Name: Sheepshead minnow
  Scientific Name: Cyprinodon variegatus
  Toxicity: 190 µg/l
  Test: 96h LC50
  

• Organism Type: Fish ^e
  Common Name: Sheepshead minnow
  Scientific Name: Cyprinodon variegatus
  Toxicity: 190 µg/l
  Test: 96h LC50,FT
  

• Organism Type: Fish ^e
  Common Name: Sheepshead minnow
  Scientific Name: Cyprinodon variegatus
  Toxicity: 2.5 µg/l
  Test: MATC
  

• Organism Type: Fish ^e
  Common Name: Carp
  Scientific Name: Cyprinus carpio
  Toxicity: 1 µg/l
  Test: 48h LC50
  

• Organism Type: Fish ^e
  Common Name: Channel catfish
  Scientific Name: Ictalurus punctatus
  Toxicity: 417 µg/l
  Test: 96h LC50,S
  

• Organism Type: Fish ^e
  Common Name: Bluegill
  Scientific Name: Lepomis macrochirus
  Toxicity: 0.019 mg/l
  Test: 48h LC50
  

• Organism Type: Fish ^e
  Common Name: Rainbow trout
  Scientific Name: Oncorhynchus mykiss
  Toxicity: 0.011 mg/l
  Test: 48h LC50
  

• Organism Type: Fish ^e
  Common Name: Fathead minnow
  Scientific Name: Pimephales promelas
  Toxicity: 1.9 µg/l
  Test: MATC
  

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

• Organism Type: Mammals ^g
  Common Name: Rat
  Scientific Name: Muridae (Family)
  Toxicity: 3700 mg/kg
  Test: LD50
  Formulation: Tretox 480
  

Octanol-Water Partition Coefficients

• Log Kow: 5.1 ^e
  

Work Cited