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Related Experiment Videos

Hazardous waste and neurobehavioral effects: a developmental perspective

R F White1, R G Feldman, I I Eviator

  • 1Department of Neurology, Boston University School of Medicine, Boston, Massachusetts, USA.

Environmental Research
|January 1, 1997
PubMed
Summary

Trichloroethylene (TCE) exposure from well water caused cognitive deficits, particularly in younger individuals. Early-life exposure to this solvent led to more widespread and severe neurological impairments.

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Area of Science:

  • Neuroscience
  • Environmental Health
  • Toxicology

Background:

  • Trichloroethylene (TCE) is a common industrial solvent.
  • Contamination of well water with TCE can lead to human exposure.
  • Previous studies suggest potential neurotoxic effects of TCE.

Purpose of the Study:

  • To investigate the clinical and neuropsychological effects of TCE exposure from well water.
  • To assess the impact of age at exposure on cognitive outcomes.
  • To identify specific cognitive domains affected by TCE.

Main Methods:

  • Clinical examinations of three groups exposed to TCE in well water.
  • Diagnostic assessment for peripheral neuropathy.
  • Neuropsychological testing to evaluate cognitive function.

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Main Results:

  • High incidence of cognitive deficits consistent with central nervous system dysfunction due to solvent exposure.
  • A developmental trend was observed, with younger subjects exhibiting more cognitive deficits.
  • Language deficits were prevalent in younger individuals exposed to TCE, but not in older adults.

Conclusions:

  • TCE exposure via well water is associated with significant cognitive impairment.
  • Age at the time of TCE exposure is a critical factor influencing the severity and type of cognitive deficits.
  • Early-life exposure to TCE poses a greater risk for long-term neurological damage, including language impairments.