Review of the Environmental Protection Agency's draft IRIS assessment of tetrachloroethylene
Occupational exposure to specific chemical solvents, primarily trichloroethylene or tetrachloroethylene
, was associated with increased odds for developing Parkinson's disease in a case-control study of pairs of twins who were discordant for the condition.
Committee to Review EPA's Toxicological Assessment of Tetrachloroethylene
Some of the agents are commonly found in the environment, such as lead and lead compounds or diesel exhaust, whereas others, such as tetrachloroethylene
, are limited to occupational exposure.
(PCE) is widely used in industries as solvents, surface coatings, dry cleaning and degreasing agent.
Environmental Protection Agency's classification of tetrachloroethylene
, a dry-cleaning chemical, as a carcinogen.
When the US Navy operated the site from 1941 to 1974, toxic compounds--such as tetrachloroethylene
(TCE)--were used for the shipbuilding, repair, and maintenance operations.
The groundwater near the rail yard is contaminated with the chemicals trichloroethylene and tetrachloroethylene
, solvents used to clean oil off metal.
For the tetrachloromethane, tetrachloroethylene
and trichloromethane solvents, after several days at room temperature, the copper plating was no longer visible on the steel coupon surface, the submerged portion of the steel coupon became weak and the chlorinated solvent/oil solution turned into a gray, cloudy suspension (steel corrosion independent of copper plating).
Concentrations of trichloroethylene, chloroform, tetrachloromethane, and tetrachloroethylene
in surface water were analysed in the Kohtla River downstream from the outlet of Viru Keemia Grupp, in the Narva River downstream from the effluent of Narva, and in the mouth of the Plyussa River.
The scientists found volatile organic compounds in 33 of the 35 wells tested, including tetrachloroethylene
, which was once used in dry cleaning and manufacturing.
3]H) and tetrachloroethylene
(also known as perchloroethylene or PCE; [C.