Ecological Assessment of Storm Impacts

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Data Collection

Dicamba

CAS Number: 1918-00-9

Basic Information

The chemical structure of Dicamba Synonym(s): 2,5-Dichloro-6-methoxybenzoic acid; 2-Methoxy-3,6-dichlorobenzoic acid; 3,6-Dichloro-o-anisic acid; 3,6-Dichloro-2-methoxybenzoic acid; Banex; Banlen; Banval; Banvel; Banvel 10G; Banvel 4E; Banvel 5G
Formula: C8H6Cl2O3
 Molecular Weight: 221.04
 Melting Point (°C): 87 - 108
 Contaminant Type: Dicamba is an herbicide.

Solubility (in water)

  • Solubility: 1 % c
    Formulation: Veteran 10G
  • Solubility: >7900 mg/l e
    Temperature (°C): 25

Half-Life (in soil unless otherwise noted)

  • t1/2: 1-4 weeks b

Toxicity Effects

  • Organism Type: Crustaceans b
    Common Name: Crustaceans
     Toxicity: 100-180 mg/l
     Test: 96h LC50
  • Organism Type: Crustaceans e
    Scientific Name: Cypridopsis vidua
     Toxicity: 100 mg/l
     Test: 48h NOEC
  • Organism Type: Crustaceans e
    Common Name: Daphnia
     Scientific Name: Daphnia magna
     Toxicity: 100 mg/l
     Test: 48h NOEC
  • Organism Type: Crustaceans g
    Common Name: Daphnia
     Scientific Name: Daphnia magna
     Toxicity: 1600 mg/l
     Test: 96h LC50
    Formulation: Banvel
  • Organism Type: Crustaceans e
    Scientific Name: Gammarus fasciatus
     Toxicity: 100 mg/l
     Test: 48h NOEC
  • Organism Type: Crustaceans e
    Scientific Name: Gammarus lacustris
     Toxicity: 3.9 mg/l
     Test: 96h LC50
  • Organism Type: Crustaceans e
    Scientific Name: Orconectes nais
     Toxicity: 100 mg/l
     Test: 48h NOEC
  • Organism Type: Crustaceans e
    Common Name: Mississippi grass shrimp
     Scientific Name: Palaemonetes kadiakensis
     Toxicity: 100 mg/l
     Test: 48h NOEC
  • Organism Type: Fish b
    Common Name: Fish
     Toxicity: 180 mg/l
     Test: 96h LC50
  • Organism Type: Fish e
    Common Name: Bluegill
     Scientific Name: Lepomis macrochirus
     Toxicity: 20 mg/l
     Test: 48h LC50
  • Organism Type: Fish g
    Common Name: Bluegill
     Scientific Name: Lepomis macrochirus
     Toxicity: >1000 mg/l
     Test: 96h LC50
    Formulation: Banvel
  • Organism Type: Fish g
    Common Name: Rainbow trout
     Scientific Name: Oncorhynchus mykiss
    Toxicity: >1000 mg/l
     Test: 96h LC50
    Formulation: Banvel
  • Organism Type: Mammals g
    Common Name: Rat
     Scientific Name: Muridae (Family)
     Toxicity: 2629 mg/kg
     Test: LD50
     Formulation: Banvel
  • Organism Type: Mammals g
    Common Name: Rat
     Scientific Name: Muridae (Family)
     Toxicity: 3512 mg/kg
     Test: LD50
     Formulation: Clarity
  • Organism Type: Mammals g
    Common Name: Rat
     Scientific Name: Muridae (Family)
     Toxicity: 6764 mg/kg
     Test: LD50
     Formulation: Banvel SGF
  • Organism Type: Molluscs v
    Common Name: Eastern oyster
     Scientific Name: Crassostrea virginica
     Toxicity: 1 mg/l
     Test: 96h EC50

Soil Organic Carbon/Water Partition Coefficients

  • Koc: 0.4 - 2 b

Octanol-Water Partition Coefficients

  • Log Kow: 2.21 p
  • Log Kow: 2.5 e

Resource Map: Click below to open in a new window to view or print.
Potential applications of this contaminant in the St. Johns Water River Management District

Work Cited

b AQUIRE (AQUatic toxicity Information REtrieval) database (As part of the ECOTOX Database). Pages retreived February, 2003 from http://www.epa.gov/ecotox/. USEPA, Washington, DC.
c C&P Press. 2002. EPR Professional Annual CD. Crop Protection Reference. Chemical and Pharmacuetical Press, Inc., New York, NY.
e Verschueren, K. 1996. Handbook of Environmental Data on Organic Chemicals, 3rd edition. John Wiley & Sons, Inc., New York.
g Meister, R. T., and C. Sine (Ed). 2003. Crop Protection Handbook, volume 89. Meister Publishing Company, Willoughby, OH.
p Syracuse Research Corporation Databases. Pages retrieved November, 2003 from: http://esc.syrres.com. Syracuse Research Corporation, North Syracuse, NY.
v OPP (Office of Pesticide Programs). 1995. Environmental Effects Database (EEDB). Pages retreived from http://www.epa.gov/ecotox/ in ECOTOX, 2001. Environmental Fate and Effects Division, US EPA, Washington, DC.