Ecological Assessment of Storm Impacts

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Data Collection

Paraquat

CAS Number: 4685-14-7

Basic Information

The chemical structure of Paraquat Synonym(s): 1,1'-Dimethyl-4,4'-bipyridinium ion; Orthoparaquat; Paraquat dication; Paraquat ion; Grammoxone; methyl viologen (2+); N,N'-dimethyl-gamma,gamma'-bipyridylium; Prelude; Starfire 1.5
Formula: C12H14Cl2N2
 Molecular Weight: 186.256
 Contaminant Type: Paraquat is an herbicide.

Toxicity Effects

  • Organism Type: Algae e
    Scientific Name: Chlorococcum spp.
     Toxicity: >5000 mg/l
     Test: 10d EC50, growth
  • Organism Type: Algae e
    Scientific Name: Chlorococcum spp.
     Toxicity: 50 mg/l
     Test: 10d EC50, O2 evol
  • Organism Type: Algae e
    Scientific Name: Dunaliella tertiolecta
     Toxicity: 2500 mg/l
     Test: 10d EC50, growth
  • Organism Type: Algae e
    Scientific Name: Dunaliella tertiolecta
     Toxicity: 20 mg/l
     Test: 10d EC50, O2 evol
  • Organism Type: Algae e
    Scientific Name: Isochrysis galbana
     Toxicity: 5000 mg/l
     Test: 10d EC50, growth
  • Organism Type: Algae e
    Scientific Name: Isochrysis galbana
     Toxicity: 5 mg/l
     Test: 10d EC50, O2 evol
  • Organism Type: Algae e
    Scientific Name: Phaeodactylum spp.
     Toxicity: 3500 mg/l
     Test: 10d EC50, growth
  • Organism Type: Algae e
    Scientific Name: Phaeodactylum spp.
     Toxicity: 10 mg/l
     Test: 10d EC50, O2 evol
  • Organism Type: Crustaceans e
    Common Name: Daphnia
     Scientific Name: Daphnia pulex
     Toxicity: 3.7 mg/l
     Test: 48h LC50
  • Organism Type: Crustaceans e
    Scientific Name: Gammarus lacustris
     Toxicity: 11 mg/l
     Test: 96h LC50
  • Organism Type: Crustaceans e
    Scientific Name: Simocephalus serrulatus
     Toxicity: 4 mg/l
     Test: 48h LC50
  • Organism Type: Fish e
    Common Name: Rainbow trout
     Scientific Name: Oncorhynchus mykiss
    Toxicity: 62 mg/l
     Test: 48h LC50
  • Organism Type: Fish e
    Common Name: Shortfin molly
     Scientific Name: Poecilia mexicana
     Toxicity: 12 mg/l
     Test: 24h LC50,S
  • Organism Type: Fish e
    Common Name: Guppy
     Scientific Name: Poecilia reticulata
    Toxicity: 11 mg/l
     Test: 96h LC50,S
  • Organism Type: Fish e
    Common Name: Scissor-tailed rasbora
     Scientific Name: Rasbora trilineata
     Toxicity: 7 mg/l
     Test: 96h LC50,S
  • Organism Type: Fish e
    Common Name: Brown trout
     Scientific Name: Salmo trutta
     Toxicity: 82 mg/l
     Test: 48h LC50,S
  • Organism Type: Mammals g
    Common Name: Rat
     Scientific Name: Muridae (Family)
     Toxicity: 150 mg/kg
     Test: LD50

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

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.