Ecological Assessment of Storm Impacts

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benzo(a)anthracene

CAS Number: 56-55-3

Basic Information

The chemical structure of benzo(a)anthracene Synonym(s): 1,2-Benzanthracene; 1,2-benzanthrene; 2,3-benzophenanthracene; 2,3-benzophenanthrene; B(A)A; benz[a]anthracene; Benz[a]anthracene ; Benzanthracene; benzanthrene; Benzo[a]anthracene; Benzo[b]phenanthrene; naphthanthracene; tetraphene
Formula: C18H12
 Molecular Weight: 228.293
 Boiling Point (°C): 437.6
 Melting Point (°C): 159.8
 Contaminant Type: benzo(a)anthracene is a polyclyclic aromatic hydrocarbon.
Notes: COLORLESS PLATES RECRYSTALLIZED FROM GLACIAL ACETIC ACID OR ALCOHOL

Solubility (in water)

  • Solubility: 1.40E-06 g/100ml d
  • Solubility: 0.010; 0.044 mg/l ak
    Temperature (°C): 24
     Formulation: practical grade
  • Solubility: 1.40E-02 mg/l ak

Half-Life (in soil unless otherwise noted)

  • t1/2: 0.28-1.86 years f
    Temperature (°C): 10-30
     Environment: Based upon aerobic soil die-away test data
  • t1/2: 5 years ak
    Temperature (°C): 20
     Environment: abiotic degradation in sandy loam in the dark at 700 mg/kg
  • t1/2: 3 years ak
    Temperature (°C): 20
     Environment: biodegradation in sandy loam in the dark at 700 mg/kg

Toxicity Effects

  • Organism Type: Crustaceans ak
    Common Name: Daphnia
     Scientific Name: Daphnia pulex
     Toxicity: 0.01 mg/l
     Test: 96h LC50

Soil Organic Carbon/Water Partition Coefficients

  • Koc: Log Koc: 5.3 ay

Octanol-Water Partition Coefficients

  • Log Kow: Kow: 398000 ao
  • Log Kow: 5.63 ay
  • Log Kow: 5.61 ak

Work Cited

d ChemFinder. Cambridge MA: CambridgeSoft Corporation. Retrieved November, 2003 from http://chemfinder.cambridgesoft.com
f Howard, P. H., R. S. Boethling, W. F. Jarvis, W. M. Meylan, and E. M. Michalenko. 1991. Handbook of Environmental Degradation Rates. Lewis Publishers., Chelsea, MI.
ak Verschueren, K. 2001. Handbook of Environmental Data on Organic Chemicals, 4th edition. John Wiley & Sons, Inc., New York.
ao Santodonato, J., P. Howard, D. Basu, S.D. Lee, Si Duk, and L. Grant. 1981. Health and ecological assessment of polynuclear aromatic hydrocarbons. Pages 1-364 in Journal of environmental pathology and toxicology, volume 5(1). Park Forest South, Ill. : Pathotox Publishers.
ay Nagpal, N. K. 1993. Ambient Water Quality Criteria For Polycyclic Aromatic Hydrocarbons (PAHs). Pages retrieved April 2005 from http://www.env.gov.bc.ca/wat/wq/BCguidelines/pahs/index.html. British Columbia Ministry of Environment.