How can i contaminate soil sample with TCE artificially? what is the procedure i have to follow?

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J. C. Tarafdar

@ Belay, Soil contamination or soil pollution as part of land degradation is caused by the presence of xenobiotics (human-made) chemicals or other alteration in the natural soil environment. It is typically caused by industrial activity, agricultural chemicals or improper disposal of waste. Trichloroethylene appears as a clear colorless volatile liquid having a chloroform-like odor. Denser than water and is slightly soluble in water. It can be used as solvent.

C.A. (Kees) Kan

It heavily depends on the amount of soil you want to contaminate and the experiment you want to do with that contaminated soil. So be more specific in your question.