XRF readings:
Lead: 41500 ppm · Cadmium: 1200 ppm · Arsenic: 0 ppm
Verdict: Very high: avoid food contact + High cadmium
This Vintage Corelle Blue & Yellow Floral Dish With Butterflies: 41,500 ppm Lead (90 is unsafe for kids) + Cadmium tested at 41500 ppm lead, heavily contaminated. If any of the lead is on the painted surface, decoration, or worn area, expect bioavailable exposure with food contact, mouthing, or abrasion. Cadmium reads 1200 ppm, which is also flagged territory.
What this XRF reading actually means →
XRF measures lead presence on the surface. It does not measure whether that lead can reach a person. That distinction matters for how you should react to this number. Read the full primer.
Test your own dishes with FluoroSpec →
Source: EverythingLead · Test method: XRF (Niton XL 5 Plus, 1.5 sigma)
License: Verdict and methodology © EverythingLead, CC-BY-SA 4.0. Factual XRF measurements are not copyrightable (Feist v. Rural Tel., 499 U.S. 340).