Besides its positive and beneficial utilization, it bears some harmful and toxic aspects as well, which may produce serious health complications due to its release especially in water and air from mentioned and other sources. The possible health problems include irritation of skin, eyes, nose and throat, dizziness, headache, unconsciousness, tinnitus, breathing difficulties and others [2]. It has also been reported as a nephrocarcinogenic reagent [3]. According to other report [4] mononuclear compounds such as benzene metabolites, caffeic acid and otoluidine should express their carcinogenicity through oxidative
DNA damage.