in breath followed by urine and the least amount of TeCA was recovered in feces. 20%-30% were retained in skin and carcass. Inhalation exposure: The experiment on the health effects following inhalation exposure was performed on human volunteers for adsorption and excretion studies and on animals for distribution and metabolism. A bulb containing 38C1-labeled TeCA was inserted into their mouths and the volunteers inhaled deeply, held their breath for 20 seconds, and exhaled. The excretion of the radiolabeled TeCA was measured. a) Adsorption: The results of the study showed that 97% TeCA was adsorbed in a single breath. b) Distribution: After exposure to mice and rats via inhalation adverse effects were observed in liver and kidney indicating a systemic distribution of TeCA to these tissues. c) Metabolism: Following 6 hours of inhalation exposure the level of radioactively labeled TeCA was measured at a concentration of 7.73% non metabolized in expired air. 72 hours later 1.78% was measured. d) Excretion: One hour after exposure 3% of inhaled TeCA was measured in excreted breath and 0.015% in urine. Dermal exposure: To measure the health effects following dermal exposure were performed 1mL of TeCA was applied to the skin of mice and guinea pigs. a) Adsorption: Within one half hour the dose was absorbed into the skin. b) Distribution: No experiments available. c) Metabolism: No experiments available d) Excretion: The half-life of TeCA in blood was shown to be approximately two hours. Health effects 1,1,2,2-tetrachloroethane (TeCA) has a vast array of effects spread throughout the whole body. Effects have been investigated on different systems on both humans and animals, stated respectively. Gastrointestinal Effects 4 studies on humans after TeCA exposure determined gastrointestinal distress in the participants. Two humans exposed to 2.9 ppm TeCA for 30 minutes showed symptoms of vomiting and nausea. These symptoms also caused weight loss. A study by Horiuchi et al. showed that a monkey frequently exposed to 1.9 ppm TeCA got anorexic and developed regular diarrhea. Hematological Effects Workers in an artificial silk factory that had regularly inhaled TeCA, showed elevated white blood cell levels and slight anemia. In 1962, a study showed that of the investigated rats exposed to 9000 ppm TeCA for 29 days had decreased red blood cells and hemoglobin levels. Hepatic Effects Autopsies on humans who died due to TeCA exposure showed that some humans developed hepatic failure from the TeCA, they showed jaundice and