Introduction to Tamara Rubin
(for those new to this website!)
Tamara Rubin lives in Portland, Oregon and is a child health advocate, author, documentary filmmaker, and mother of four sons. Her young men are now 24, 18, 15, and 12. She has won multiple national awards for her Lead-poisoning prevention advocacy work (including two from U.S. government agencies). In 2020 she had more than 1.165 million unique individual readers visit her #LeadSafeMama blog – from more than 200 countries (per Google Analytics) around the world!
It is with the help, support, and participation of these readers that she conducts and reports on independent testing of consumer goods for toxicants (Lead, Mercury, Arsenic, Cadmium, and Antimony), using high-accuracy X-Ray Fluoresence analysis (read more about that here). She goes by #LeadSafeMama on Twitter, Facebook & Instagram and has over 2,700 separate posts of information (mostly consumer goods test results) on her blog here at LeadSafeMama.com.
Tamara’s advocacy work has been mentioned in print in The New York Times; the New York Post; Mother Jones; Parents Magazine; Vice.com; MNN.com; TruthOut; WebMD; the Huffington Post,;USA Today; Grok Nation, and more (too many outlets to list!) – and in other media (T.V. and radio), on the Today Show; Kids in the House; Al Jazeera English; The Voice of Russia; CBS This Morning, and through news stories on CBS; ABC; NBC, and even Fox News – as well as in countless podcasts and other interviews.
Continue reading below the images.
When tested with an XRF instrument the Red Rose (ceramic) drawer pull / cabinet knob pictured here (purchased at Hobby Lobby) had the following readings:
#1) Ceramic Red Rose (main component)
- Lead (Pb): 38 +/- 9 ppm
- Cadmium (Cd): 11 +/- 4 ppm
- Chromium (Cr): 1,096 +/- 152 ppm
- Bismuth (Bi): 31 +/- 9 ppm
- Platinum (Pt): 78 +/- 31 ppm
- Zinc (Zn): 34 +/- 13 ppm
- Iron (Fe): 2,608 +/- 186 ppm
- Vanadium (V): 193 +/- 81 ppm
- Titanium (Ti): 1,804 +/- 202 ppm
#2) Brass base of rose
- Lead (Pb): 1,387 +/- 181 ppm
- Selenium (Se): 876 +/- 165 ppm
- Zinc (Zn): 39,700 +/- 900 ppm
- Copper (Cu): 2,065 +/- 936 ppm
- Iron (Fe): 676,800 +/- 2,000 ppm
- Manganese (Mn): 6,109 +/- 493 ppm
#3) Metal washer
- Nb: 1,712 +/- 133 ppm
- Zinc (Zn): 58,000 +/- 4,800 ppm
- Iron (Fe): 602,800 +/- 28,000 ppm
- Manganese (Mn): 950 +/- 356 ppm
- Titanium (Ti): 1,853 +/- 605 ppm
#4) Metal nut
- Zinc (Zn): 160,300 +/- 1,800 ppm
- Iron (Fe): 833,500 +/- 2,000 ppm
- Manganese (Mn): 4,295 +/- 477 ppm
#5) Screw attached to base
- Nb: 1,587 +/- 81 ppm
- Palladium (Pd): 19 +/- 7 ppm
- Zinc (Zn): 37,600 +/- 1,800 ppm
- Copper (Cu): 234 +/- 93 ppm
- Iron (Fe): 247,000 +/- 7,900 ppm
- Manganese (Mn): 1,670 +/- 321 ppm
- Indium (In): 55 +/- 17 ppm
- Titanium (Ti): 2,667 +/- 421 ppm
“Tamara, tell me more about this testing…”
Testing is done with the same instrumentation used by the Consumer Product Safety Commission to test consumer goods for Lead (and other toxicants), when screening for safety (including screening items intended for use by children to make sure they fall within acceptable levels.) All tests are done for a minimum of 60 seconds unless otherwise noted. Tests are repeated multiple times on each component to confirm the results. Test results are science-based, accurate and replicable.
Some additional reading that may be of interest:
- More products from Hobby Lobby that I have tested.
- More Cabinet Knobs that I have tested.
- More Drawer Pulls that I have tested.
- More rose patterned items I have tested (if that’s your jam!)
- A short video that shows you how to efficiently navigate the more than 2,700 posts and pages of information on this website (please definitely watch this if you have not yet, it will help you find all the things!)
To read more about the testing methodology for nearly all test results reported on this blog, click here. Thank you for reading and for sharing my posts. As always, please let me know if you have any questions. With 1.165 Million unique readers in 2020 alone I am not always able to answer each and every question personally, but I do try. Thank you.
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