PAH   Molecular Weight   Structure Melting Point (°C) Water Solubility
(mg litre-1)
  Log Kow
Naphthalene 128.2 79 – 82 320 3.5
Acenaphthene 152.2 95 5.3 3.95
Acenaphthylene 152.2 72-82 3.93 3.94
Fluorene 166.2 115 - 16 1.85 4.28
Phenanthrene 178.2 99 1.24 5.62
Anthracene 178.2 218 0.64 5.33
Fluoranthene 202.3 110 0.25 4.62
Pyrene 202.3 156 0.14 4.47
Banzo[a]anthracene 228.3 158 0.01 5.30
Chrysene 228.3 255 0,002 5.30
Benzo[b]fluoranthene 252.3 168 - 5.74
Benzo[k]fluoranthene 252.31 215 - 6.06
Benzo[a]pyrene 252.3 179 0.0038 5.74
Benzo[ghi]perylene 276.3 273 0.00026 6.20
Dibenzo[ah]anthracene 278.35 262 0.0005 6.84
Indeno
[1,2,3-c,d]pyrene
276.3 163 Insoluble 6.20
Table 1: Physical and chemical properties of selvected PAHs.