Is Exposure to Chlorinated Solvents During Development Linked to Autism? 

Exposure to hazardous solvents such as trichloroethylene (TCE) and perchloroethylene (PCE) during critical stages of foetal development may increase the risk of autism spectrum disorders (ASD), according to recent research suggesting a possible link between chlorinated solvent exposure and autism. Exposure to chlorinated solvents can disrupt the brain’s normal development, resulting in behavioural issues and developmental delays that are frequently linked to autism. 

Chlorinated solvent exposure and autism are a growing concern, particularly for pregnant women and children living near industrial sites where solvents such as TCE and PCE are used. These solvents are known to be neurotoxic, and exposure during foetal development can disrupt brain function, increasing the likelihood of neurodevelopmental disorders such as autism. 

How Does Chlorinated Solvent Exposure Affect Autism Risk? 

Understanding the connection between chlorinated solvent exposure and autism is essential for reducing the risk of developmental issues. Here’s how TCE and PCE exposure during critical developmental periods can impact brain growth: 

Foetal Development:  

Chlorinated solvent exposure, particularly to TCE and PCE, during pregnancy can interfere with foetal development, causing disruptions in brain formation and function. This exposure has been linked to an increased risk of autism, as the developing brain is highly sensitive to toxins during this stage. 

Postnatal Impact:  

Children exposed to chlorinated solvents after birth may experience delays in communication, social interaction, and other developmental milestones. Long-term exposure to these neurotoxic chemicals can exacerbate autism symptoms and developmental challenges. 

Visit providers like Autism Detect for personal consultations to understand how chlorinated solvent exposure and autism may affect your child’s development and discover ways to minimise exposure to harmful chemicals. 

For a deeper dive into the science, diagnosis, and full treatment landscape, read our complete guide to Exposure to Toxins or Pollutants.

Hannah Smith, MSc

Author

Hannah Smith is a clinical psychologist with a Master’s in Clinical Psychology and over three years of experience in behaviour therapy, special education, and inclusive practices. She specialises in Applied Behavior Analysis (ABA), Cognitive Behavioural Therapy (CBT), and inclusive education strategies. Hannah has worked extensively with children and adults with Autism Spectrum Disorder (ASD), ADHD, Down syndrome, and intellectual disabilities, delivering evidence-based interventions to support development, mental health, and well-being.

All qualifications and professional experience stated above are authentic and verified by our editorial team. However, pseudonym and image likeness are used to protect the author's privacy. 

Dr. Rebecca Fernandez, MBBS

Reviewer

Dr. Rebecca Fernandez is a UK-trained physician with an MBBS and experience in general surgery, cardiology, internal medicine, gynecology, intensive care, and emergency medicine. She has managed critically ill patients, stabilised acute trauma cases, and provided comprehensive inpatient and outpatient care. In psychiatry, Dr. Fernandez has worked with psychotic, mood, anxiety, and substance use disorders, applying evidence-based approaches such as CBT, ACT, and mindfulness-based therapies. Her skills span patient assessment, treatment planning, and the integration of digital health solutions to support mental well-being.

All qualifications and professional experience stated above are authentic and verified by our editorial team. However, pseudonym and image likeness are used to protect the reviewer's privacy.