Environmental Science
The old paint on your walls is probably harmless. Sanding it off is the dangerous part
31 Aug 2026 · 12 min read
India capped lead in household paint at 90 ppm in 2016. Anything painted before that may be far above it — and the exposure route is not the intact film on the wall, it is the dust released when somebody prepares the surface for repainting. Here is why the paint was leaded, who is actually at risk, and why leaving it in place is often the better answer.
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