XRF readings:
Lead: 59300 ppm · Cadmium: 0 ppm · Arsenic: 10900 ppm
Verdict: Extreme: do not use
This Beatrix Potter Wedgwood China Peter Rabbit Baby Bowl (c. 1970): 59,300 ppm Lead (90 is unsafe for kids) + 10,900 Arsenic tested at 59300 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. Arsenic reads 10900 ppm, worth noting on top of the lead question.
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).