This book is written to encourage for the benefit of Automobile and Environmental Engineering researchers. It gives thorough knowledge about the vehicular pollution and tail pipe emissions of various classes of vehicles. In this detailed calculation of emission factors are given. The pollution loads are calculated and their formula have been devised. The various units of emission and pollution load have also been given for the benefit of the researchers. The availability conventional fuels and CNG in India is also explained with respect to future requirements. This book is resourceful for the various studies of fuels like Petrol, Diesel, LPG and CNG. The case study of the South Indian City Gulbarga is referred here for various calculations of Pollution Loads which will enlighten the book users and researchers. This book also explains the effects of vehicular pollution on human health and remedial measures.