Modern Handmade Japanese Ceramic Dishes Example #2: 11 ppm Lead + 5 ppm Cadmium (safe by all standards)
For those new to the Lead Safe Mama website:
Tamara Rubin is a multiple-federal-award-winning independent advocate for childhood Lead poisoning prevention and consumer goods safety, and a documentary filmmaker. She is also a mother of Lead-poisoned children (two of her four sons were acutely Lead-poisoned in 2005).
- Tamara owns and runs Lead Safe Mama, LLC — a unique community collaborative woman-owned small business for childhood Lead poisoning prevention and consumer goods safety.
- Since July 2022, the work of Lead Safe Mama, LLC has been responsible for six product recalls (FDA and CPSC).
- All test results reported on this website are science-based, accurate, and replicable.
- Please check out our press page to see some of the news coverage of our work, linked here.
July 24, 2021
Note: The test results from most of the consumer goods shared on this website are for items that Lead Safe Mama readers sent in for testing and reporting. This is a collaborative effort (with our readers) to help you make informed decisions for your family (giving you a better idea of what to look for [and what you might want to avoid] when making safer choices for your home).
Reading #1) XRF test results for the dish pictured, on the brown glaze
60-second minimum (repeated multiple times to confirm the results):
- Lead (Pb): 11 +/- 4 ppm
- Manganese (Mn): 160 +/- 65 ppm
- Iron (Fe): 36,600 +/- 400 ppm
- Copper (Cu): 132 +/- 14ppm
- Zinc (Zn): 93 +/- 8 ppm
- Zirconium (Zr): 8,409 +/- 93 ppm
- Barium (Ba): 170 +/- 16 ppm
- Platinum (Pt): 94 +/- 15 ppm
- Bismuth (Bi): 16 +/- 4 ppm
Reading #2) XRF test results for the dish pictured, on the white glaze
60-second minimum(repeated multiple times to confirm the results):
- Lead (Pb): 9 +/- 4 ppm
- Cadmium (Cd): 5 +/- 2 ppm
- Iron (Fe): 8,724 +/- 159 ppm
- Cobalt (Co): 72 +/- 39 ppm
- Zinc (Zn): 171 +/- 11 ppm
- Zirconium (Zr): 2,726 +/- 32 ppm
- Indium (In): 5 +/- 3 ppm
- Barium (Ba): 244 +/- 15 ppm
- Bismuth (Bi): 14 +/- 4 ppm
Some additional reading that might be of interest:
- This article discusses the testing methodology we use for the reports published on this website
- Here’s how to send us an item for testing
- Here are some items you can test at home
- Here’s some things that might be better tested with an XRF instrument
- “Can I test things myself at home?”
Thanks for reading. Thank you for sharing these results. As always, please let me know if you have any questions and I will do my best to answer them personally as soon as I have a moment (which may not be right away, but I will try)!
Tamara Rubin
#LeadSafeMama
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