Can Coronene and/or Benzo(a)pyrene/Coronene ratio act as unique markers for vehicle emission?

Can Coronene and/or Benzo(a)pyrene/Coronene ratio act as unique markers for vehicle emission?

Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Environmental Pollution - Volume 184, January 2014, Pages 650-653

Guofeng Shen, Yuanchen Chen, Siye Wei, Xiaofang Fu, Aijun Ding, Haisuo Wu, Shu Tao,