OSHA 10-Hour Construction ReviewHealth Hazards in ConstructionMedium
A painter is preparing surfaces in an older building and suspects the presence of lead-based paint. What is the most critical initial step before disturbing the paint?
- AApply a liquid stripper to soften the paint for easier removal.
- BOpen all windows and doors for maximum ventilation.
- CAssume it contains lead and follow all lead-safe work practices.
- DBegin scraping paint carefully to see if it peels easily.
Show answer & explanationAnswer & explanation
Correct answer: C. Assume it contains lead and follow all lead-safe work practices.
When working in older buildings where lead-based paint is suspected, the safest and most critical initial step is to assume its presence and implement all required lead-safe work practices immediately. Testing can confirm, but work practices should not be delayed.
Why the other options are wrong
- A. Applying strippers can create lead-contaminated waste and fumes, requiring specific controls.
- B. Ventilation is important but does not prevent dust generation or exposure from direct contact.
- D. Scraping paint without precautions can release lead dust, creating a hazard.
Lead-Based Paint Presumption
In buildings built before 1978, all paint is presumed to be lead-based until testing proves otherwise. Lead-safe work practices must be implemented immediately if disturbance is planned.
- Lead is a neurotoxin, especially harmful to children.
- Work practices include containment, HEPA vacuuming, and proper waste disposal.
- Testing is recommended but should not delay initial precautions.
Memory trick: Old Paint, Assume Lead, Then Proceed with Care.