To remove a lead paint sample without generating toxic smoke, which method is recommended?

• A. Razor-sharp scraper
• B. Burning with a torch
• C. Sanding with coarse sandpaper
• D. Using water and cloth

Answer: (A)

The key idea is to remove the paint sample without introducing heat that could generate fumes. A razor-sharp scraper does this by mechanically lifting or shaving the paint off the surface, producing little to no smoke or vapor. Burning with a torch would heat the paint and release toxic fumes, making it unsafe. Sanding with coarse sandpaper creates a lot of dust that can spread lead particles through the air, posing inhalation risks. Using water and cloth damp-wipes the area to reduce dust, but it may not yield a discrete, analyzable sample and can smear material rather than collect it cleanly. So the sharp scraper best meets the goal of removing material without generating toxic smoke while still allowing a sample to be collected.