Although the exact causes of this disease are still unknown, researchers have recently highlighted a link between exposure to trichlorethylene (TCE), a chemical commonly used in dry cleaning, and the onset of this disease. This discovery, published in the Journal of Parkinson’s Disease, sheds new light on the potential risks associated with exposure to chemicals in our daily lives.
What is Trichlorethylene (TCE)
Trichlorethylene is a colorless chemical liquid with an odor reminiscent of chloroform. It does not occur naturally in the environment and is mainly used in various industrial and commercial sectors such as:
- Professional dry cleaning
- metal degreasing
- The manufacture of cleaning towels
- The formulation of stain removers for clothing and carpets
- The design of lubricants
- The manufacture of spray adhesives
Its use can lead to exposure through contaminated air, water and soil.
Risks associated with exposure to TCE
Significant exposure to TCE can produce a variety of symptoms, including dizziness, headaches, confusion, nausea, and facial numbness. Additionally, studies have shown that prolonged exposure to this chemical can increase the risk of developing certain types of cancer, such as kidney cancer, liver cancer, and non-Hodgkin’s lymphoma.
TCE and Parkinson’s disease
dr Ray Dorsey, professor of neurology at the University of Rochester and lead author of the study, explains that when writing his book Ending Parkinson’s Disease, his team decided to investigate the possible link between TCE and Parkinson’s disease.
according to dr Dorsey also associates TCE, a known carcinogen, with other serious health problems such as miscarriage, neural tube defects, congenital heart disease and many other conditions.
Compelling case studies
dr Dorsey’s team conducted a literature review and identified seven cases of people developing Parkinson’s disease after exposure to TCE in the workplace or in their communities. Such cases include the case of Brian Grant, a former NBA player who was diagnosed with Parkinson’s disease at the age of 36. Researchers believe he was likely exposed to TCE as a child when his father was stationed at Army Camp Lejeune, North Carolina, where the water supply was contaminated with TCE in the 1980s.
The need for more research
While these case studies are compelling, Dr. Dorsey the need for more research to establish a clear link between TCE and Parkinson’s disease. In fact, there are currently only 26 studies on the subject, a relatively low number given the scale of TCE use and the pollution it causes.
How can you reduce your TCE exposure?
According to the researchers, the best way to reduce exposure to TCE would be to ban the chemical as it poses an “unreasonable risk to human health.” They also advocate informing the public, especially people living near contaminated sites, and preventing these gases from entering homes, schools and workplaces through inexpensive remediation systems similar to those used for radon.
Improve indoor air quality
Most TCE exposures are through inhalation. It is therefore recommended to increase indoor ventilation or to use activated carbon air filters to improve air quality. More sophisticated systems, similar to those used for radon abatement, can also be considered.
Filter drinking water
TCE can also contaminate drinking water. To reduce the TCE content in the water, the use of activated carbon filters is recommended. Whole-home water filtration systems can also help prevent further exposure when bathing, washing dishes, or other household purposes.
Avoid products that contain TCE
Finally, it is advisable to avoid the use of consumer products containing TCE. Among other things, paint strippers, stain removers, adhesives, degreasers and sealants should be checked for their TCE content.
The discovery of the possible link between TCE and Parkinson’s disease underscores once again the importance of regulating the use of chemicals in our society. Pending further research on this topic, it is important to raise public awareness of the risks associated with exposure to chemicals and to promote behaviors aimed at minimizing these risks.