The task of forensic toxicologist is to find out the presence of toxic elements in your body and for this they depend on various components extracted from your body. While urine and blood are the two widely used components there are others that help equally well in determination of the presence and affects of toxic elements on your body.

Your hair is capable of indicating the medium and long term abuses of toxic elements in your body. It grows at around 1.5 cms per month and the cross sections of follicles provide the timing when the harmful substance was ingested in your body or blood flow. Normally darker and coarser hair contains more of such elements and it will be quite easy for the expert toxicology practitioner to find out them testing your hair size and patterns.

Oral fluids could be another component that could provide valuable evidences about the presence of toxic elements in your body. Ordinarily the saliva from your mouth is used for the test. They contain components that are found in your blood. With the rise in the drug use, the importance of oral fluid in forensic toxicology is on the rise.

The basic difference between use of the forensic toxicology and the environmental toxicology is that the later is basically concerned with the external impacts on your body while the former is concerned more on the internal impacts. In both cases you require real experts who can perfectly find out symptoms and harmful elements as it concerns your well being.