Ecological Assessment of Storm Impacts

Data Collection

Para-Dichlorobenzene

Basic Information

Synonym(s): 1,4-Dichlorobenzene; PARA; para-Dichlorobenzene; p-dichlorobenzol; p-chlorophenyl chloride; Paracide; Paradow; Paramoth; paranuggets; Para-zene; Dichlorobenzene, 1,4- ; Dichlorocide; dichloricide; DCB; Evola; globol; PDB; PDCB; persia-perazol; santochlor
Formula: C₆H₄Cl₂
Molecular Weight: 147.01
Boiling Point (°C): 173.4
Melting Point (°C): 53.1
Contaminant Type: Para-Dichlorobenzene is an insecticide.
Notes: Colorless solid with a mothball-like odor

Solubility (in water)

• Solubility: 49 mg/l ^ak
  Temperature (°C): 22
  

• Solubility: 79 mg/l ^ak
  Temperature (°C): 25
  

Half-Life (in soil unless otherwise noted)

• t1/2: 1-6 months ^f
  Environment: Scientific judgement based upon unacclimated aerobic screening test data and aerobic soil grad sample data
  

Toxicity Effects

• Organism Type: Crustaceans ^ak
  Common Name: Daphnia
  Scientific Name: Daphnia magna
  Toxicity: 0.5 mg/l
  Test: 21d NOEC
  

• Organism Type: Crustaceans ^ak
  Common Name: Daphnia
  Scientific Name: Daphnia magna
  Toxicity: 1.5 mg/l
  Test: 24h EC0
  

• Organism Type: Crustaceans ^ak
  Common Name: Daphnia
  Scientific Name: Daphnia magna
  Toxicity: 3.2 mg/l
  Test: 24h EC50
  

• Organism Type: Crustaceans ^ak
  Common Name: Daphnia
  Scientific Name: Daphnia magna
  Toxicity: 0.7 mg/l
  Test: 48h EC50
  

• Organism Type: Crustaceans ^ak
  Common Name: Daphnia
  Scientific Name: Daphnia magna
  Toxicity: 2.2 mg/l
  Test: 48h LC50
  

• Organism Type: Crustaceans ^ak
  Common Name: Daggerblade grass shrimp
  Scientific Name: Palaemonetes pugio
  Toxicity: 129 mg/l
  Test: 48h LC50
  

• Organism Type: Crustaceans ^ak
  Common Name: Daggerblade grass shrimp
  Scientific Name: Palaemonetes pugio
  Toxicity: 69 mg/l
  Test: 96h LC50
  

• Organism Type: Fish ^ak
  Common Name: Zebra danio
  Scientific Name: Brachydanio rerio
  Toxicity: 0.44 mg/l
  Test: 14d NOEC
  

• Organism Type: Fish ^ak
  Common Name: Zebra danio
  Scientific Name: Brachydanio rerio
  Toxicity: 4.8 mg/l
  Test: 48h LC50
  

• Organism Type: Fish ^ak
  Common Name: Zebra danio
  Scientific Name: Brachydanio rerio
  Toxicity: 2.1 mg/l
  Test: 96h LC50
  

• Organism Type: Fish ^ak
  Common Name: Sheepshead minnow
  Scientific Name: Cyprinodon variegatus
  Toxicity: 7.4 mg/l
  Test: 96h LC50
  

• Organism Type: Fish ^ak
  Common Name: Sheepshead minnow
  Scientific Name: Cyprinodon variegatus
  Toxicity: 5.6 mg/l
  Test: 96h NOEC
  

• Organism Type: Fish ^ak
  Common Name: Orfe
  Scientific Name: Idus idus, or Leuciscus idus
  Toxicity: 50 mg/l
  Test: 72h LC0
  

• Organism Type: Fish ^ak
  Common Name: Flagfish
  Scientific Name: Jordanella floridae
  Life Stage: Fry
  Toxicity: >0.35 mg/l
  Test: 96h LC50
  Formulation: fry survival
  

• Organism Type: Fish ^ak
  Common Name: Flagfish
  Scientific Name: Jordanella floridae
  Life Stage: Fry
  Toxicity: >0.35 mg/l
  Test: 96h LC50
  Formulation: fry growth
  

• Organism Type: Fish ^ak
  Common Name: Flagfish
  Scientific Name: Jordanella floridae
  Life Stage: Egg
  Toxicity: >0.84 mg/l
  Test: 96h LC50
  Formulation: egg hatchability
  

• Organism Type: Fish ^ak
  Common Name: Flagfish
  Scientific Name: Jordanella floridae
  Life Stage: Larval
  Toxicity: 0.26 mg/l
  Test: 96h LC50
  Formulation: larval survival
  

• Organism Type: Fish ^ak
  Common Name: Fathead minnow
  Scientific Name: Pimephales promelas
  Toxicity: 35 mg/l
  Test: 24h LC50
  

• Organism Type: Fish ^ak
  Common Name: Fathead minnow
  Scientific Name: Pimephales promelas
  Toxicity: 34 mg/l
  Test: 48h LC50
  

• Organism Type: Fish ^ak
  Common Name: Fathead minnow
  Scientific Name: Pimephales promelas
  Toxicity: 34 mg/l
  Test: 96h LC50
  

• Organism Type: Fish ^ak
  Common Name: Guppy
  Scientific Name: Poecilia reticulata
  Toxicity: 4 mg/l
  Test: 14d LC50
  

Soil Organic Carbon/Water Partition Coefficients

• Koc: 3.22 ^ak
  Formulation: log
  

• Koc: 850 ^ak
  Formulation: "for Fullerton soil, 0.06% organic carbon"
  

• Koc: 665 ^ak
  Formulation: "for Apison soil, 0.11% organic carbon"
  

• Koc: 280 ^ak
  Formulation: for Dormont soil 1.2% organic carbon
  

Octanol-Water Partition Coefficients

• Log Kow: 3.39 ^ak
  Formulation: at 20C
  

Work Cited