The study discussed in this book aims to help the decision makers at the regulatory body in Kuwait to take the right actions in order to control the adverse effects due to exposure to hazardous chemicals on the health of the workers and the public. The study deals with monitoring and analysis of toxic and carcinogenic volatile organic compounds such as Benzene, Ethylbenzene, Toluene, o,m,p-xylene, Styrene and MTBE which are commonly exist at typical microenvironments in Kuwait.