Vinyl Chloride in Drinking Water
Complete contaminant profile for vinyl chloride in drinking water, including sources, health concerns, groundwater contamination pathways, testing methods, treatment technologies, and drinking water safety guidance.
Quick Facts
What Is Vinyl Chloride?
Vinyl chloride is a synthetic chemical primarily used in the production of polyvinyl chloride (PVC), one of the world’s most widely used plastics.
It may also appear in groundwater when chlorinated solvents such as TCE and PCE break down naturally in the environment.
Why Vinyl Chloride Matters
Vinyl chloride is closely monitored because it can persist in contaminated groundwater and is considered one of the most significant VOC contaminants from a regulatory perspective.
Main Sources of Vinyl Chloride
PVC Manufacturing
Vinyl chloride is a key raw material used in PVC production.
TCE Degradation
Natural breakdown of trichloroethylene may generate vinyl chloride.
PCE Degradation
Tetrachloroethylene contamination can eventually form vinyl chloride.
Industrial Releases
Chemical manufacturing and industrial operations may contribute contamination.
Potential Health Concerns
Vinyl chloride is considered a high-priority drinking water contaminant and is subject to strict regulatory monitoring.
Health agencies evaluate exposure using concentration levels, duration, and site-specific risk assessments.
How Vinyl Chloride Is Detected
- VOC laboratory testing.
- Groundwater monitoring programs.
- Environmental investigations.
- Municipal water monitoring.
- Private well testing.
Vinyl Chloride Removal Technologies
| Treatment Method | Effectiveness | Comments |
|---|---|---|
| Activated Carbon | High | Widely used treatment technology |
| Air Stripping | High | Effective for volatile contaminants |
| Advanced Oxidation | High | Common in remediation systems |
| Reverse Osmosis | Moderate | Often combined with carbon treatment |
| Boiling | Not Recommended | May transfer VOCs into indoor air |
Vinyl Chloride and Groundwater Plumes
Vinyl chloride is frequently found within chlorinated solvent contamination plumes and is often monitored alongside TCE and PCE.
Its presence may indicate ongoing degradation of other chlorinated solvents in groundwater.
Related Contaminants
Frequently Asked Questions
What is vinyl chloride?
Vinyl chloride is a chemical used to manufacture PVC plastic and may also form from the breakdown of other chlorinated solvents.
Can vinyl chloride contaminate drinking water?
Yes. It is a well-known groundwater contaminant associated with industrial activities and solvent degradation.
Can activated carbon remove vinyl chloride?
Yes. Activated carbon is commonly used for treatment.
Is vinyl chloride related to TCE and PCE?
Yes. Vinyl chloride may form as TCE and PCE degrade in the environment.
Can boiling remove vinyl chloride?
No. Boiling is not recommended because VOCs may be released into indoor air.
Quick Summary
Vinyl chloride is a volatile organic compound associated with PVC manufacturing, industrial contamination, and the environmental degradation of TCE and PCE. Because it is closely monitored by regulatory agencies, it remains one of the most important groundwater contaminants in environmental investigations. Activated carbon, air stripping, and advanced remediation technologies are among the most effective treatment options.