Ecological Assessment of Storm Impacts

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Data Collection

Clethodim

CAS Number: 99129-21-2

Basic Information

The chemical structure of Clethodim Synonym(s): 2-(1-(((3-chloro-2-propenyl)oxy)imino)propyl)-5-(2-(ethylthio)propyl)-3-hydroxy-2-cyclohexene-1-one; clethodim; (E)-2[1-[[(3-chloro-2-propenyl)oxy]imino]propyl]-5-{2-(ethylthio)propyl}-3-hydroxy-2-cyclohexene-1-one; RE-45601; Select;
Formula: C17H26ClNO3S
Molecular Weight: 359.91
Contaminant Type: Clethodim is an herbicide.

Solubility (in water)

  • Solubility: pH dependant g

Half-Life (in soil unless otherwise noted)

  • t1/2: 3 days h
  • t1/2: 3 days h
    Environment: most soils

Toxicity Effects

  • Organism Type: Birds g
    Common Name: Mallard
    Scientific Name: Anas platyrhynchos
    Toxicity: >6000 ppm
    Test: 96h LC50
  • Organism Type: Birds ah
    Common Name: Mallard
    Scientific Name: Anas platyrhynchos
    Toxicity: >6000 ppm
    Test: LD50
  • Organism Type: Birds g
    Common Name: bobwhite quail
    Scientific Name: Colinus virginianus
    Toxicity: >6000 ppm
    Test: 96h LC50
  • Organism Type: Crustaceans h
    Common Name: Daphnia
    Scientific Name: Daphnia magna
    Toxicity: 20.2 mg/l
    Test: 48h LC50
  • Organism Type: Crustaceans h
    Common Name: Daphnia
    Scientific Name: Daphnia magna
    Toxicity: 5.5 mg/l
    Test: NOAEC
  • Organism Type: Crustaceans h
    Common Name: Daphnia
    Scientific Name: Daphnia magna
    Toxicity: 5.5 mg/l
    Test: NOEC
  • Organism Type: Fish ah
    Common Name: Sunfish
    Toxicity: >120 mg/l
    Test: 96h LC50
  • Organism Type: Fish g
    Common Name: Sunfish
    Toxicity: >120 mg/l
    Test: 96h LC50
  • Organism Type: Fish h
    Common Name: Bluegill
    Scientific Name: Lepomis macrochirus
    Toxicity: 33 mg/l
    Test: 96h LC50
  • Organism Type: Fish h
    Common Name: Rainbow trout
    Scientific Name: Oncorhynchus mykiss
    Toxicity: 18 - 56 mg/l
    Test: 96h LC50
  • Organism Type: Fish ah
    Common Name: Rainbow trout
    Scientific Name: Oncorhynchus mykiss
    Toxicity: 18-56 mg/l
    Test: 96h LC50
  • Organism Type: Mammals h
    Common Name: Rat
    Scientific Name: Muridae (Family)
    Gender: Female
    Toxicity: 1360 mg/kg
    Test: LD50
  • Organism Type: Mammals h
    Common Name: Rat
    Scientific Name: Muridae (Family)
    Gender: Male
    Toxicity: 1630 mg/kg
    Test: LD50
  • Organism Type: Mammals h
    Common Name: Rat
    Scientific Name: Muridae (Family)
    Toxicity: >5000 mg/kg
    Test: LD50
  • Organism Type: Mammals h
    Common Name: Rat
    Scientific Name: Muridae (Family)
    Gender: Male
    Toxicity: 3610 mg/kg
    Test: LD50
    Formulation: Select 2 EC
  • Organism Type: Mammals ah
    Common Name: Rat
    Scientific Name: Muridae (Family)
    Gender: Female
    Toxicity: 2920 mg/kg
    Test: LD50
    Formulation: Select 2 EC

Soil Organic Carbon/Water Partition Coefficients

  • Koc: 0.05-0.23 h
    Formulation: Kd - over a range of five soils

Work Cited

g Meister, R. T., and C. Sine (Ed). 2003. Crop Protection Handbook, volume 89. Meister Publishing Company, Willoughby, OH.
h Extension Toxicology Network. Pages retrieved November, 2003 from http://ace.orst.edu/info/extoxnet/. Oregon State University, Corvallis, OR.
ah Meisterpro.com. Pages retrieved March, 2004 from www.meisterpro.com. MeisterPRO Information Services - a division of Meister Media Worldwide, Willoughby, OH.