UC Davis study: Disposable vapes may be more toxic than cigarettes sfchronicle.com/health/article…

Using a lab device to simulate 500 to1,500 puffs per product, the UC Davis researchers found that metal concentrations increased with use. Leaded bronze components and degrading heating coils were identified as major sources of contamination.

“When I first saw the lead concentrations, they were so high I thought our instrument was broken,” lead author Mark Salazar said in a statement.