S. No.

PAHs

No. of rings

Abbreviation

Formula

1

Phenanthrene

3

Phe

C₁₄H₁₀

2

Anthracene

3

Ant

C₁₄H₁₀

3

Fluoranthene

4

Fla

C₁₆H₁₀

4

Pyrene

4

Pyr

C₁₆H₁₀

5

Benz [a] anthracene

4

Baa

C₁₈H₁₂

6

Chrysene

4

Cry

C₁₈H₁₂

7

Benzo [b] fluoranthene

5

Bbf

C₂₀H₁₂

8

Benzo [k] fluoranthene

5

Bkf

C₂₀H₁₂

9

Benzo [a] pyrene

5

Bap

C₂₀H₁₂

10

Dibenz [ah] anthracene

5

Dba

C₂₂H₁₄

11

Benzo [ghi] perylene

6

Bgh

C₂₂H₁₂

12

Indeno [1,2,3-cd] pyrene

6

Ind

C₂₂H₁₂

13

Coronene

6

Cor

C₂₄H₁₂