Frequent Questions

What are the best near-term actions to reduce PCB exposures in buildings with PCB-containing caulk?

It is important to minimize exposure to PCBs from caulk and its residues through inhalation, skin contact or ingestion. Where schools or other buildings were built or renovated between 1950 and 1978, EPA recommends the following best practices to minimize exposure:

  • Clean air ducts
  • Improve ventilation and add exhaust fans
  • Clean frequently to reduce dust and residue inside buildings
  • Use a wet or damp cloth or mop to clean surfaces
  • Use vacuums with high efficiency particulate air filters
  • Do not sweep with dry brooms; minimize the use of dusters near areas with caulk
  • Wash children's hands with soap and water often, particularly before eating
  • Wash children's toys often
  • Wash hands with soap and water after cleaning, and before eating or drinking
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