What are the degradation products of TCE?
TCE degradation products of three dichloroethene (DCE) isomers, vinyl chloride (VC) and ethene were present. The plume was depleted of oxygen and methanogenic at certain depths.
What products contain trichloroethylene?
It is used primarily to make refrigerants and other hydrofluorocarbons and as a degreasing solvent for metal equipment. TCE is also used in some household products, such as cleaning wipes, aerosol cleaning products, tool cleaners, paint removers, spray adhesives, and carpet cleaners and spot removers.
What does trichloroethylene cause?
Trichloroethylene may cause irritation to the eyes and skin. Exposure to high concentrations can cause dizziness, headaches, sleepiness, confusion, nausea, unconsciousness, liver damage, and even death. Trichloroethylene is a known carcingen. Workers may be harmed from exposure to trichloroethylene.
What is the half life of trichloroethylene?
Most of the trichloroethylene used in the United States is released into the atmosphere by evaporation primarily from degreasing operations. Once in the atmosphere, the dominant trichloroethylene degradation process is reaction with hydroxyl radicals; the estimated half-life for this process is approximately 7 days.
Is chloroform a degradation product of PCE?
During the degradation of TCE and PCE via UV or UV/H2O2 some harmful intermediates such as haloacetic acids (HAAs) and chloroform may be formed. These compounds are known as disinfection byproducts (DBPs) in chlorination; therefore, they are strictly monitored during water treatment.
What is meant by reductive degradation?
The process of removing a halogen from a halogenated organic compound by a reductive reaction is referred to as reductive dehalogenation. Reductive reactions are ones in which electrons are transferred to the carbon-halogen bond, thereby lowering the oxidation state of the parent compound (example reactions below).
What is trichloroethylene commonly known as?
The IUPAC name is trichloroethene. Industrial abbreviations include TCE, trichlor, Trike, Tricky and tri. It has been sold under a variety of trade names. Under the trade names Trimar and Trilene, trichloroethylene was used as a volatile anesthetic and as an inhaled obstetrical analgesic in millions of patients.
What is the chemical formula for trichloroethylene?
C2HCl3Trichloroethylene / Formula
CAS Number: 79-01-6 Synonyms: 1,1,2-trichloroethylene, ethylene trichloride, trichlor, TCE Chemical Formula: C2HCl3 Molecular Weight: 131.40 Chemical Structure: Description: Trichloroethylene is a clear, colorless liquid at room temperatures.
Is trichloroethylene a neurotoxin?
In a few cases, trichloroethylene exposure has been associated with peripheral and cranial nerve damage. A decomposition product of trichloroethylene, dichloroacetylene, is neurotoxic and may be responsible for the cranial nerve effects.
What are the breakdown products of PCE?
Tetrachloroethylene is degraded by hydrolysis, and is persistent under aerobic conditions. It is degraded by reductive dechlorination under anaerobic conditions, with degradation products such as trichloroethylene, dichloroethylene, vinyl chloride, ethylene, and ethane.
Is chloroform a breakdown product?
Because it is a breakdown product of other chemicals (chlorinated hydrocarbons), chloroform in your body might also indicate that you have come into contact with those other chemicals.
What is trichloroethylene (TCE)?
Trichloroethylene (TCE) is a common groundwater contaminant of toxic and carcinogenic concern. Aerobic co-metabolic processes are the predominant pathways for TCE complete degradation.
Can trichloroethene be attenuated?
Natural attenuation of trichloroethene and its degradation products at a lake-shore site Subsurface contamination by trichloroethene (TCE) was detected at a Michigan National Priorities List (NPL) site in 1982.
What is the fate of acetaminophen in soil?
Acetaminophen is the most widely used human medicine. Trace levels of acetaminophen are frequently detected in treated wastewater and the impacted surface or groundwater resources. However, even though soil is a primary receiving compartment, the fate of acetaminophen in soil is poorly known, includ …
Is there a causal relationship between trichloroethylene and other similar chemicals?
with trichloroethylene and other similar chemicals; however, no causal relationship with trichloroethylenewith trichloroethylene and other similar chemicals; however, no causal relationship with trichloroethylene could be concluded. (1)