DDT is a chemical which was first found in the year 1874 and was well studied since then. World Health Organization approves of DDT because it has proven to be the most effective when it comes to combating malaria. In conjunction with other preventive measures, it is able to decrease the transmission of malaria when sprayed in homes. When it was first introduced, it was perceived to be the most effective in reducing malaria. The WHO anti-malaria campaign was successful especially in parts such as Sri Lanka. Today, WHO recommends DDT as one of its top malaria insecticides. In support of the World Health Organization position statement on the use of DDT certain toxicology data has to be assessed first (Raloff, 2001). For a proposed substance to be used, the nature of the material and the cumulative estimated dietary intake (CEDI) must be considered. If a substance has a CEDI of less than 0.5 ppb, then no toxicology data is needed. However, all relevant data must be submitted if available. If the exposure is between 0.5 and 50 ppb, a bacterial mutagenicity assay and an in vitro cytogenetic damage or mouse lymphoma assay should be carried out. The rationale for conducting these two studies is to provide an indication as to whether a given substance is likely to be a carcinogen. Should the intake of the substance exceed 50 ppb but be less than 1 ppm, then a third toxicity test may be required. However, if the substance exceeds 1ppm, then a full range of toxicity studies will be required (Keller and Heckman, 2001). The four phases of disposition of toxic compounds within the body are based on excretion through the lungs, biliary, urinary and other excretion routes such as breast feeding. DDT has the ability to accumulate in fatty tissues and breast milk. A mother exposed to DDT is likely to give the infant a greater dose of the substance. The human body is unable to breakdown DDT therefore; this makes it a highly toxic substance to the human body. Foreign compounds are usually secreted into fluids such as sweat, semen, tears and other compounds may be secreted into the saliva or stomach. The body is unable to dispose of DDT. The human body has the ability to store DDT in tissues and bodily fluids but is unable to break it down and dispose of it. To begin with, DDT has raised some concerns about its toxic nature just like other pesticides have. It is believed to cause neurologic impairment, headaches, vomiting, tremors and other known effects. In addition, it is known to cause environmental problems. Its chemical sustainability enables it to accumulate in the environment through food chains, and in tissues of exposed organisms, including the people that live in treated houses. Research has shown that exposure to DDT might cause preterm birth and early weaning. It may also interrupt the semen quality, menstruation and gestational length. Other studies have shown that daughters of mothers who have been pre-exposed to DDT may have difficulty becoming pregnant and may also suffer from miscarriage. Due to its carcinogenicity, DDT is believed to cause cancer. Studies on the human populations have shown that DDT can cause cancer of such organs as liver and pancreas, and be a reason of the breast cancer. How