What are the breakdown products of PCE?

The dechlorination or degradation process produces daughter products as it works toward non-regulated non-toxic compounds. The primary daughter products include trichloroethylene (TCE), cis-1,2-dichloroethylene (cis-DCE), trans-1,2-dichloroethylene (trans-DCE), and vinyl chloride (VC).

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.

Is PCE a hydrocarbon?

Chlorinated hydrocarbons such as perchloroethylene (PCE) and trichloroethylene (TCE) are widely used industrial solvents and degreasing agents that have entered and contaminated the environment (e.g., soil and groundwater) through leakage in storage tanks and irresponsible disposal practices in the past.

How does PCE break down in the air?

In air, PCE breaks down very slowly, and as a result, can travel a long distance. It does not easily degrade in soil either, but over time, can break down into other chemicals such as vinyl chloride. In groundwater or soil, it can also volatilize into a gas and enter buildings through tiny cracks in the foundation. How can PCE Affect my Health?

What kind of chemical is PCE and what does it do?

What is PCE? PCE is a manufactured chemical used mostly as a cleaning agent. PCE is a colorless, nonflammable liquid with a faint, sweet odor. It is also a volatile organic compound, which means it can turn into a gas. What is PCE Used for? PCE is used primarily for metal degreasing and for dry cleaning, scouring, and sizing fabrics.

What are the daughter products of PCE and TCE?

The primary daughter products include trichloroethylene (TCE), cis-1,2-dichloroethylene (cis-DCE), trans-1,2-dichloroethylene (trans-DCE), and vinyl chloride (VC). The daughter products can be as dangerous to human health and the environment as PCE (in some cases, more dangerous).

Where does the majority of PCE contamination come from?

In addition, despite newer dry cleaning technologies that reduce occupational exposure to PCE, the major source of PCE contamination in groundwater is still discharge from dry cleaners and factories.