Mexican tiles often have unsafe levels of Lead. Tile pictured: 25,800 ppm Lead. > 90 ppm is illegal in modern house paint.
When tested with an XRF instrument, the hand-painted Mexican tile pictured here had the following readings: Lead (Pb): 25,800 +/- 1,000 ppm Barium (Ba): 538 +/- 130 ppm This tile was non-detect (negative) for: Antimony (Sb), Chromium (Cr), Cadmium (Cd), Arsenic (As), Mercury (Hg) and Selenium (Se). XRF-detectable Lead content in tile is not regulated…